Picture (2823)

• "Girls on the March" by Stephanie Osser - Underglaze decorated
• "Whitemud" clays in dinosaur country of southern Saskatchewan. These are Cretaceous. Jurassic? 1km straight down.
• #6 Tile Kaolin 2021 vs EP Kaolin 2020: Fired properties tell an unexpected story
• 0.02% manganese, ilmenite, rutile granular in a buff stoneware at cone 6
• 0.11g C-98 Talc residue on a 150 mesh screen from 50g
• 1% and 2% copper carbonate in a cone 6 transparent
• 10% Veegum porcelain slurry dewatering on plaster
• 100 years ago, the Plainsman Clays plant would have been a small outbuilding at ACP
• 100% Ravenscrag slip on Plainsman H550 stoneware fired to cone 10R
• 1215U clear glaze with various Mason stains
• 15 inch reduction fired bowl by Tony Hansen
• 16,000 layers yet still not mixed! What now?
• 17 hours from slurry to thrown to trimmed to fired with glaze
• 1700F Frit Melt-Off: Who is the winner? Not the lead bisilicate!
• 18 hours from thrown on the wheel to glazed and out of the kiln!
• 1970s cone 10 reduction stoneware bowl by Tony Hansen
• 2% Copper carbonate in two cone 6 transparents: One does not bubble and orange-peel. Why?
• 2% iron oxide in a glossy terra cotta glaze gives better color, less clouding
• 2, 5, 10 and 15% alumina hydrate added to Ravenscrag Slip
• 2, 5, 10 and 15% calcined alumina added to Ravenscrag Slip
• 2, 5, 10, 15% dolomite added to Ravenscrag Slip at cone 10R
• 20 Skids of Material Just arrived Fatique Freddie is overwhelmed!
• 200 Shimpo wheels in stock at Plainsman. Certified and ready.
• 2020 Sample Boards for Plainsman Clay Bodies
• 22 inch slabs successfully fired after a change. What?
• 29 mugs made from one 20kg box of Plainsman H443 clay
• 3% and 2% Zircopax added to G2926B cone 6 clear. Why?
• 3/4 inch plywood mold which also split
• 30g of Epsom salts dissolved in 100cc of water: Is this the best way to use it?
• 325 mesh
• 3D design for shell mold for cup model
• 3D design, printing and use of a casting slip test bar mold
• 3D drawing of a side rail for plaster containment
• 3D drawing of brick frog template
• 3D drawing of the shell mold
• 3D drawing to print shell mold to make plaster pyrometric cone molds
• 3D mechanical design software 2025: Which is the best for mold making in ceramics?
• 3D mockup for 1940s Medalta Potteries ball pitcher
• 3D Printed Banding Wheel
• 3D printed collars to make the sieve fit snuggly
• 3D printed displacer reduces the rubber needed
• 3D printed mold tests of embossed logo
• 3D printed plastic and stainless steel propellers
• 3D Printed Pour-spout Forms a Rounded Lip First date with OnShape went great!
• 3D Printed prototype beside first dried piece
• 3D printed spout for ball mill prevents hernias!
• 3D printed test jar with bail-and-latch fastener
• 3D printed three-piece jigger case mold complete
• 3D printer printer poop
• 3D printing a clay paste that instantaneously cures upon extrusion
• 3D printing a propeller for a lab mixer
• 3D Printing an entire one-off case mold in one piece
• 3D Printing Artifacts on a Bowl Model. When are these a problem? When are they not?
• 3D printing case vs block molds for ceramics
• 3D printing case vs block mug handle molds
• 3D printing rails enables large thin-walled rubber molds
• 3D render of a jiggering template
• 3D-printed cookie cutters used to make this tile design
• 3D-printed Mold for Giffin Jigger
• 3D-printing artifacts on a slip cast M370C bottle. A problem?
• 3D-printing basic rails suitable for some pours
• 3D-Printing the Medalta 66 prototype mug
• 3MF vs STL vs OBJ files for 3D printing
• 4 coats vs 3 coats of red brushing glaze
• 4 Talcs in the same casting clay body at cone 04
• 4% iron oxide in a clear glaze. Unscreened. The result: Fired specks.
• 4% rutile in a low temperature transparent glaze
• 4-7% tin oxide in a clear glaze - is this better than Zircopax?
• 45 micron silica is amazing in low temperature pottery glazes
• 5% tin oxide in a transparent boron cone 6 glaze
• 5% tin oxide vs 9% Zircopax in a cone 6 transparent glaze
• 5% titanium dioxide in G2934Y matte, G1214Z1 matte, G2926B glossy
• 50 grams of EPK powder ready for sieve analysis
• 50 lb bag of soda ash (or sodium carbonate).
• 5x20 glaze used as a base for an overglaze
• 6% black stain vs 10% raw umber in a body
• 6% rutile is too much in this cone 6 oxidation glaze
• 77 million-year-old mugs cataloged and exhibited
• 880 bags of kaolin arrive. First step: Record the date code.
• 90:10 Albany:Frit and Alberta:Frit comparison
• 95% Alberta Slip plus 4% iron at cone 10R
• A 0.01g electronic scale - a necessity for DIY lab/studio
• A 0.1g electronic scale - a necessity for DIY lab/studio
• A 2oz jar of underglaze dries down to 21g of powder. That is bad and good!
• A 3D Printed Mold Spout Better Than a Spare for Slip Casting
• A 3D-printed pour spout on a mug jigger-casting mold
• A 3D-printed spout enables a flared rim on cast ware
• A 3D-printed stamp cut and embossed this clay in one step
• A 70:30 mix of EPK:Nepheline Syenite has gone to mush
• A bad batch of frit - Glaze manufacturers must deal with this
• A bag of HC Spinks Ball Clay
• A batch of fired clay test bars in the Plainsman Clays lab
• A bentonitic clay that takes a long time to dry
• A black engobe transforms the floating blue glaze over it
• A blue burning stoneware body: 3% stain does it
• A body containing excessive non-plastics having a high bentonite addition for plasticity
• A body containing manganese bubbles the glaze
• A body so porous that it has absorbed its own glaze!
• A breaking glaze highlights incised decoration by its variation in thickness
• A bucket of glaze smells totally rank! What to do?
• A Case Mold and Working Mold for Slip Casting
• A casting slip of 1.9 specific gravity. Should we use it?
• A classic Albany glaze that often shivers
• A classic beer truck for ceramic beer bottles A classic mid-1900s delivery truck!
• A clay that has negative shrinkage during the glaze firing
• A Clayburn Thermolite 25 original container
• A Clear Glaze Bubbles Over DIY Underglazes: The real solution is in the underglaze recipe
• A commercial bottled brushing version of Albany Slip brown glaze
• A commercial rutile-glazed mug
• A comparative glaze opacity test in a tile lab: The way to minimize Zircon
• A completely automatic reduction gas kiln.
• A compressing pugmill die with higly polished inside surface
• A cone 10 Reduction bowl has cracked after continuous use
• A cone 10 reduction firing on the way into the kiln and on the way out
• A cone 10R blood red - without copper but with risk
• A cone 10R high iron glaze has run off the vase during firing. And crystallized.
• A cone 10R iron crystal glaze Using only Ravenscrag Slip and iron oxide
• A cone 6 black-burning stoneware with a porcelain surface. How?
• A cone 6 clear glaze plus iron vs. Alberta Slip amber base
• A crackle glaze by using a cone 6 body at cone 04
• A cuerda seca decorated souvenir mug sold in Mexico
• A cure for long-time Gerstley Borate sufferers
• A DFAC drying test disk of a terra cotta pottery clay from St. Ignacio, Sinaloa, Mexico
• A difference between a non-plastic and a plastic throwing clay
• A down side of high feldspar glazes: Crazing!
• A draining issue with a slip cast bottle It is turning inside out!
• A dried terra cotta mug on the left, bisque fired to cone 06 on the right
• A dunting crack
• A few drops of water on top of a tiny pile of bentonite powder.
• A fireclay that is not really a fireclay!
• A flameware body recipe being tested for thermal shock. Is this a joke?
• A flameware recipe. Are they kidding?
• A fluid melt glaze bleeds much more into adjoining ones
• A fluid reduction rutile glaze is crawling
• A free standing controller can transform and old kiln
• A frit manufacturer that used to publish chemistry
• A frit softens over a wide temperature range
• A fritted source of MgO has sabotaged the visual character of this glaze
• A functional matte cone 6 glaze should melt as well as a glossy
• A functional matte liner glaze is possible - with care.
• A gas kiln built by Luke Lindoe in the 1960s is still used at Plainsman Clays today
• A giant cookie-cutter for slab built mugs View and print it now using the Downloads page link
• A glaze incompatible with chrome-tin stains (but great with inclusion stains)
• A glaze is pushing outward from the inside of this cone 6 cup
• A glaze is showing unwanted streaking. Why?
• A glaze slurry precipitates flakes
• A glaze thickness tester
• A glaze whose visual effect is partly a product of phase separation
• A good base glaze, a vitreous clay and a good fit. How good that is!
• A good example of the superiority of a frit
• A good matte glaze. A bad matte glaze.
• A grog addition makes thermal shock resistance worse? I tested this in a low COE Pyrax:Kaolin body
• A Grolleg based porcelain vs. a ball clay and American kaolin porcelain
• A gunmetal glaze I have wanted for decades!
• A hazard of using titanium opacifier in a glaze
• A heavily grogged casting body still casts with a smooth surface!
• A high expansion glaze is bowing the foot of the bottom bowl
• A high feldspar glaze is settling, running and crazing. What to do?
• A high speed grinder from Amazon. Does it work to remove fired defects?
• A high-quality inexpensive studio/lab mixer is here
• A highly fluxed body, when over fired can do this!
• A Highly Plastic White Burning Kaolinized Sand: This proves we can have a Canadian kaolin
• A home made moisture sensor for pugged clay
• A honey glaze that needs a base having more melt fluidity
• A hypodermic syringe for measuring slurry viscosity
• A kiln load going in with no tests. What a shame.
• A KimLab sieve bought from Amazon, is it as good as a Tyler?
• A large glaze batch mixing error rescued using glaze chemistry
• A lead bisilicate frit fails a leach test. Yet as-a-glaze it passes. Why?
• A lime particle embedded in the clay has expanded an popped
• A Lithophane exploits porcleain translucency to reveal its design
• A little kyanite might improve your clay body
• A load of 800 bags of silica arriving at Plainsman Clays
• A low temperature vase has exploded while just sitting there! Why?
• A low-fire talc body lacks plasticity when slip-mixed, but not when pugged
• A M390-compatible cone 6 red-burning casting body
• A magnesia matte that breaks on contours
• A magnesia speckle matte at cone 6 oxidation is impossible, right? Wrong!
• A material storage rack
• A metallic, silky crystal black glaze based on Alberta Slip
• A method to make a two-part slip casting mold in one pour
• A modern electric test kiln, a marvel of utility
• A moving response from a nurse in our Covid 19 ICU
• A much better Cone 6 Floating Blue
• A mug cracks before your eyes because of glaze compression
• A must-have: Laboratory variable speed propeller mixer
• A non-vitreous body can have a very poor bond with the glaze
• A novel way to compare degree of porcelain vitrification
• A novel way to test glaze compression and glaze fit
• A novel way to test glaze-to-body adhesion
• A once-fire mug vs. a bisque-fired mug
• A plaster table makes a good base as a drying box
• A plaster table: Better than a pugmill, essential for testing
• A plastic pottery clay for rolling ceramic tile: Not a crazy idea when it can do what this can!
• A porcelain mug warps under the weight of its own handle
• A potter fixes a leaching glaze problem
• A potter is worried about her teapots cracking? What can she do to ease her mind?
• A pottery glaze so reactive it can eat through a firebrick. The fix struck boron-blue gold!
• A practical dust box may be better than a dust hood
• A problem with brilliantly colored fluid-melt glazes: Micro-crystals
• A problem with spodumene fluxed glazes: bubbles, surface dimples
• A problem with super-white porcelain mugs
• A professionally-made silk screen frame
• A pure ball clay slip demonstrates thixotropy of a slurry
• A pure silica suspension that behaves like a glaze. Is that possible? Yes.
• A red fireclay from cone 7 (bottom) to cone 10 and 10R
• A Redart cone 03 body shines when it come to ease of glaze fit
• A refined-material cone 10R dolomite matte (left) vs. one made using Ravenscrag Slip
• A refractory ball clay vs a vitreous ball clay
• A root-of-two series of test sieves
• A rotary drier made by Feeco International
• A rotary drier suitable for drying and calcining ceramic powders and granulates
• A running glaze has stuck to a kiln shelf. Kiln wash saves the day!
• A runny glaze is blistering on the inside of a large bowl
• A salt glazed sewer pipe junction
• A saurkraut fermenting jar made using Plainsman M340
• A sculpture bodies gets a lot more interesting surface
• A sculpture body fired from cone 1 (bottom) to 11 and 10R (top)
• A severe case of boron blue creates opalescence
• A shipment of PV Clay at its worst: Not vitreous
• A sieve shaker used on dry powder samples
• A silky matte oatmeal glaze recipe that is working very well at cone 5
• A slab-built reduction fired stoneware platter by Tony Hansen
• A slip cast bowl just removed from its plaster mold
• A slipware terra cotta jug
• A small 220V electric test kiln
• A soda feldspar applied like at glaze at cone 4-7
• A special gummed engobe made this possible
• A starter recipe for a brown wood ash glaze for cone 6
• A step to prevent cracking at handle-joins on thrown mugs
• A stock pile of raw, unground ball clay
• A studio salt kiln being unloaded
• A Super Plastic Stoneware Made With Two Materials This mix showcases stoneware's advantages over porcelain
• A super-fine, super-plastic wild clay that comes with baggage
• A table frame almost ready to fill with a 7-bag plaster mix
• A terra cotta bowl made in Turkey
• A terra cotta clay fired from cone 06 (bottom) to 4
• A test kiln with firing controller: A necessity.
• A test kiln: Enabler to testing glazes And to evolving your own glaze recipes
• A Thermal Mass Pizza or Baking Oven
• A three pan sample-splitter
• A tin oxide addition improves the visual character of a cone 10R bamboo
• A tiny percentage of blue stain in a porcelain has amazing power
• A titanium/colorant addition to a cone 10 magnesia matte glaze
• A titanium/colorant addition to a cone 6 magnesia matte glaze
• A tool I 3D-printed for holding leather hard pieces during engobe application
• A transparent that looks good on cone 6 red burning bodies
• A triaxial blend of Gerstley Borate and two native clays
• A triaxial blend of three glazes at cone 6
• A typical DFAC drying disk of an iron stoneware clay
• A typical transparent glaze vs. Alberta Slip amber base on a red burning cone 6 body
• A unfritted tile glaze is boiling and spattering the kiln shelf above
• A variation of Albany lithium brown glaze
• A vessel being forced apart by the pressure of a low expansion glaze inside
• A viscosity deflocculation curve
• A vitreous sculpture clay. Vitreous enough for functional ware!
• A vitreous terra cotta slip over a white low fire stoneware
• A way to prevent a tenmoku glaze from running onto your kiln shelves
• A Weeks stoneware crock rolling machine
• A white engobe on dark and buff burning cone 6 stonewares
• A wollastonite containing glaze slurry was not sieved before use
• A zircon-opacified glaze pinholes on a raw umber stained body
• About to enter boiled weight of a test bar into my insight-live account.
• About to start a melt-flow comparison of 16 different frits
• Absolutely Jet-Black Cone 6 Engobe on M340 This could also be super white
• Achieve more even glaze coverage on pieces of varying wall thickness
• Acid products are available to remove efflorescence from ceramic surfaces
• Add 5% calcium carbonate to a tenmoku. What happens?
• Add CMC gum to a dipping glaze slurry for brushing
• Adding 10% STKO 22 S grog to a smooth stoneware does this
• Adding 6% lithium carbonate to an Alberta Slip glaze does this
• Adding a frit of unknown chemistry in a glaze recipe?
• Adding an opacifier can produce cutlery marking
• Adding calcined alumina to a ceramic glaze until it stains
• Adding iron to a clear glaze has cleared the micro-bubbles!
• Adding silica will fix crazing, right? Not here.
• Adding spodumene to this floating blue tones down the white patches
• Adding water actually made this white engobe run less? How?
• Adding Zircopax to G2571A dolomite matte
• Additions of black stain to Alberta Slip at cone 10R
• Additions of iron oxide are coloring, fluxing and crystallizing this base transparent
• Adjusting the amount of vibration is the key to utility
• Adobe brick clay - What is it actually?
• Aged commercial clay really needs to be wedged before use
• Agglomeration of New Zealand kaolin in both fritware body and glaze
• AI turned the small picture into the big one
• AI-Assisted Mug and Handle Design A shape with multiple benefits for slip casting
• Airtag Holder: A CAD exercise in precision
• Al2O3 in glazes make them durable and wear resistant
• Albany Slip DFAC dried disk
• Alberta and Ravenscrag Slip pure at cone 5 reduction
• Alberta Ravenscrag Cone 6 Brilliant Celadon
• Alberta slip and Ulexite at cone 6
• Alberta Slip as a base for glossy black glazes at cone 10R
• Alberta Slip as-a-glaze at cone 10R
• Alberta Slip base amber-clear glaze on the outside of a Polar Ice cone 6 mug
• Alberta Slip based black passed all four leaching tests
• Alberta Slip black with 4% stain at cone 6
• Alberta Slip crawling because it shrinks too much on drying
• Alberta Slip floating blue glaze on a black engobe by Tony Hansen
• Alberta Slip fluxed with frit 3195 vs. FZ-16
• Alberta Slip GA6-A glaze slow-cooled goes matte
• Alberta Slip GA6-B base darkened with iron oxide
• Alberta slip GA6A glaze (with 20% frit 3134) firing at cone 5R
• Alberta Slip glaze made with boron and zinc frits
• Alberta slip mugs
• Alberta Slip Rutile blue glaze too thin on a dark body
• Alberta Slip rutile blue on a porcelain at cone 6
• Alberta Slip Rutile-blue needs Frit 3134, it does not work with others
• Alberta Slip used in the common lithium-tin cone 6 glaze
• Alberta slip vs Alberta Slip tenmoku
• Alberta Slip with 3% iron oxide added. It crystallizes.
• All-Opaque crystal base glaze
• Almost final recipe for cone 6 copper blue - G3806B
• Alumina parts are ceramics on steroids!
• Amaco achieves the stunning look of PC-32 Albany Brown glaze using lithium
• Amaco Glaze Lovers Facebook Group
• Amazing iron-blossoms in a vitreous reduction stoneware body
• Amazing things that sanitaryware producers can make
• American Talc C-98 bag
• An 85-year-old Medalta Thrown Beer Bottle: How can it be so white, speck-free and uncrazed?
• An All-Canadian Fine Ball Clay is in Sight!
• An alumina kiln shelf that has cracked during firing
• An alumina mini proof-of-concept home-made kiln shelf (5 mm thick)
• An effective test to judge the plasticity of a shipment of EP Kaolin
• An electric kiln half shelf that costs $500!
• An engobe appears to fit the body. But it does not.
• An engobe is shivering off the rim of a low temperature mug
• An entire website created with a one-sentence request
• An example of a DFAC drying test of a bentonitic clay
• An example of a material report at the Digitalfire Reference Library
• An example of a production log book that a ceramic industry worker keeps
• An example of an S-crack in the bottom of a fired porcelain mug
• An example of dunting on a low, flat casserole shape
• An example of extreme overfiring of a clay body
• An example of how cobalt can precipitate in a fluid melt glaze at cone 6
• An example of how much Gerstley Borate LOI can affect a glaze
• An example of how precise laser cutting of plywood is
• An example of the value of a good glaze testing sample.
• An example of variegation on a tile surface that occurred when using raw manganese dioxide
• An extreme case of firing shrinkage mismatch between engobe and body
• An extremely runny glaze at cone 6. The runniness is manageable, it has other issues!
• An hour in a ball mill does less than I thought for this clay
• An impossible spout is possible by 3D printing
• An incredibly white engobe on terra cotta that produces durable and decoratable low fire ware
• An industrial cup shaping jigger machine
• An industrial plate shaping jiggering machine
• An industrial RAM Press
• An iron crystal glaze on a buff stoneware at cone 10R
• An iron red cone 6 reactive glaze up close
• An ironstone concretion found in a quarry in southern Saskatchewan
• An ordinary white mug: More difficult to make than you think!
• An original bag of Fluorspar
• An original container bag of Alberta Slip
• An original container bag of Alumina Hydrate
• An original container bag of ceramic rutile
• An original container bag of Tin Oxide
• An original container bag of Tricalcium Phosphate
• An original container of manganese dioxide
• An original container of MFW30/G Spray Dried Flux
• An ultra-clear brilliantly-glossy cone 6 clear base glaze? Yes!
• An underglaze tissue transfer with clear overglaze at cone 6
• An unevenly cooled tile has cracked
• An upgrade to benefit "Mother Nature" Replace the unbelievably inefficient driers
• Ancient pottery with bloats - Why?
• Another compelling reason for DIY casting bodies and glazes
• Another new substitute for G-200 feldspar in North America
• Another pottery website generated entirely by AI
• Another reason why clay should be wedged or kneaded
• Another Saskatchewan Outrop: We need to pay more attention
• Another view of the gas kiln in the Plainsman clay studio
• Apatite - Madagascar
• Apophylite Cyrstals
• Applicator tips and bottles for Cuerda Seca
• Apply Engobes
• Applying an engobe by pouring or spraying
• Aquamarine On Feldspar
• Arbuckle Majolica glaze using Fusion Frit F-19
• Are dolomite clay bodies OK?
• Are drippy glazes what pottery has come to?
• Are manganese speckled clay bodies a toxicity hazard?
• Are published clay body COE numbers useful to potters?
• Are these optical pyrometers suitable for a potter?
• Are these two clays lamination compatible?
• Are they really smarter in China?
• Are we collectively losing the simple ability to weigh out a glaze recipe?
• Are you a doctor? Prescribe pottery!
• Are you firing a white talc body to cone 04 for durability. You are not getting it!
• Are you testing production clay bodies? Glazes? Turn "spreadsheet chaos" into "database order"
• Are you using your expensive kiln like a pop-up toaster?
• Are your glaze recipes lost in binders or buried on your phone?
• Arrhenius Law Equation
• Arroyo Slip fired test bars show its fired maturity at low temperatures
• Arroyo Slip powder
• Ash Tray by Luke Lindoe
• Ash Tray by Luke Lindoe
• Ashtry by Luke Lindoe
• Assorted problems with 3D printing PLA molds
• At 1550F Gerstley Borate suddenly shrinks!
• At 1700F the fast fire frits show an important difference
• At first I was wondering why those two mugs cracked so badly
• At what point is a self-supporting cone bent to the correct degree?
• Augite Feldspar
• B-Mix with Ravenscrag Slip inside and Alberta Slip outside
• Back side of a bag of sodium carbonate (soda ash).
• Back side of original container of Zochem Zinc Oxide
• Back side of Redart original container bag
• Background removal: Avoid the wrong ways This is the way to do it when edges are fuzzy
• Bad and good glaze application: The difference was the rheology.
• Badly crawled glaze fired at cone 5 reduction
• Bail-and-Latch wire clamp mechanism Here is what they are, how to get them
• Ball clay data sheet demonstrates the merit of physical testing
• Ball clay powders are minus 200 mesh. Right? Wrong!
• Ball clay vs. Kaolin porcelain at cone 6
• Ball Clays differ in the amount of particulate carbon
• Ball mill jar and rack made by @andygravesstructures
• Ball mill rack back side
• Ball mill rack bearings 2
• Ball mill rack casters 1
• Ball mill rack casters 2
• Ball mill rack legs and feet 1
• Ball mill rack legs and feet 2
• Ball mill rack motor 1
• Ball mill rack motor 2
• Ball mill rack pulleys and rollers picture 1
• Ball mill rack pulleys and rollers picture 2
• Ball pitcher mold ready to pour rubber. But how much rubber?
• Ball pitcher slip casting handle mold (with spares): How to create the ridge as a cutting guide?
• Ball pitcher v.4 case molds cast
• Bamboo glaze that is actually functional
• Barium blue slab plate by by Luke Lindoe
• Barium blue vase by Luke Lindoe
• Barium testing
• Barrel Feeder With Motor and Gearbox
• Barrel-fired piece by Kathryn Newsom
• BatMate plaster bat gripper
• Beasty by Gail Lindoe
• Beautifully finished mug from Tim Hortons
• Before spending time trying online recipes, take a minute to do a sanity check on them
• Belt and suspenders baseplate for 3D printed molds
• Bentone MA bleeds glass
• Bentone: The whitest burning plasticizer we have seen
• Bentonite content affects ability to absorb water
• Bentonite powders compared in two cast crucibles
• Bentonite, it dries super slow and shrinks like no other clay
• Beryl Feldspar Mica
• Better clay deposits further east
• Better melting gives Ravenscrag Floating Blue more zip!
• Better to mix your own cover glazes for production?
• Bi-Clay strips have curled during drying. But there is a problem.
• Bi-Clay strips test compatibility between engobe and body
• Birds-eye-view throwing a terra cotta mug
• Bismuth Crystals
• Bisque fire load at Medalta Potteries in Medicine Hat, Alberta
• Bisque temperature can be lower than you think
• Bisque temperature can make a big difference with fitting glaze at low fire
• Bisque-fix/kiln-patch made using sodium silicate and kyanite
• Bisque-glazing vs. green-glazing in medium temperature porcelain
• Blaauw Kiln Schedule - Cone 10 Reduction
• Black and Yellow colored porcelain bowl by Robert Barritz
• Black ash glaze for 20% raw metal pigments: Suitable for functional ware?
• Black cone 6 body using stain
• Black coring with L4168G and L4168F
• Black engobe under the glaze
• Black engobed M340 stoneware with GA6-B Alberta Slip glaze
• Black iron oxide original container - 2021
• Black matte spiral thrown mug
• Black porcelain glaze body testing tiles
• Black porcelain slab-built mug - rotating
• Black stain powders vs. manganese dioxide at cone 6
• Bleeding underglaze. Why?
• Blender, the king of 3D modelling
• Blending an engobe and a glaze to produce an underglaze
• Blistering in a cone 6 white variegated glaze. Why?
• Blistering in a high gloss cone 6 glaze fired at cone 7R
• Blistering/bloating in Yixing pieces
• Blisters in a highly melt-fluid cone 6 sculpture glaze
• Blisters in a reduction fired rutile glaze
• Bloating can happen suddenly
• Bloating with multiple bodies at cone 6: Why is this happening?
• Block molds railed ready to pour working molds
• Blue and orange stains in Zero4 porcelain fired at cone 06
• Blue brick is made by reduction-firing high-iron clays to near vitrification
• Blue specks in a pugged porcelain. Be careful when adding stain.
• Board of dozens of glaze tests none of which worked well
• Body frit makes Redart a stoneware
• Body is firing with less maturity. How did we fix it?
• Boiled bars ready for weighing to calculate porosity
• Bone China Anti-Warp Setter test molds
• Boron blue in low fire transparent glazes
• Bory 1
• Bory 1
• Bory 1 crystal glaze
• Bory 1 crystals grown at 1260C
• Bory 1 with holding pattern 1 firing
• Bottle calibration mold demos novel casting methods
• Bottom of car - Lindoe gas kiln
• Bowl base by Luke Lindoe
• Bowl by Anita Dummins
• Bowl by by Luke Lindoe
• Bowl by Luke Lindoe
• Bowl jigger mold versions ready to pour
• Bowls decorated with slip trailing
• Brick made from Fly Ash
• Bricks and tiles are cracking out of the kiln. How to solve this problem?
• Bringing an old mechanical drawing of a crock lid back to life
• Broken cross-section of sanitaryware body from China
• Brown soluble salts that appear after drying, but disappear on firing
• Brush-on commercial pottery glazes are perfect? Not quite!
• Brushing engobe fitted to this white porcelain turns it black
• Brushing glazes on large pottery items is surprisingly practical
• Bubble city with Seattle Midnight body and G3806C glaze at cone 01, 4 and 5
• Bubbles in Terra Cotta transparent glazes. What to do?
• Buff M340 stoneware mug with natural slip glazes
• Buffalo skull that inspired the Plainsman logo
• Bulk 2500 lb bulk bags of Pioneer Kaolin
• Bullers ring vs. cones for measuring kiln temperature
• C-Red clay glazed and black coring at cone 10R
• CAD drawing of mug handle block mold (spareless)
• CAD drawing of mug handle mold with traditional spares
• CAD steps for a 3DP block mold to make a rubber case mold
• CAD tools vs modelling tools
• Calcia vs Magnesia matte - Different mechanisms
• Calcining aluminum hydroxide to 1200F. Guess how much weight it loses?
• Calcite
• Calcite - Blue, green and white
• Calcite Orange
• Calcium alumina matte glaze is different when cooled slowly
• Calcium carbonate and dolomite are refractory when used pure
• Calcium carbonate and glaze bubbles
• Calcium lignosulfonate used as a glue to hold ball clay bags on a pallet
• Calculating a substitute for Minspar
• Calculating the highest % of 3B clay to create a glaze recipe
• Calculating the recipe of a cone 10R Shino glaze
• Calibrating the fit for the stopper wiring assembly
• Can a cone 6 functional glaze having only whiting and feldspar melt enough?
• Can a decal firing melt a glaze? Yes!
• Can a glaze crack a plate? Yes.
• Can a poorly cast plaster surface be repaired?
• Can an engobe block manganese speckle at cone 6?
• Can engobes be applied to bisque?
• Can frits be partially soluble? Yes, and here is what that means.
• Can frozen clay be used? Have we been wrong all along?
• Can SiC be added to a consumer brushing glaze?
• Can terra cotta ware survive an open flame without cracking?
• Can this 5 lb thick walled bowl be fired evenly in an electric kiln. No.
• Can we ball mill a clay and make it more colloidal? Yes.
• Can you actually throw a Gerstley Borate glaze? Yes!
• Can you afford to completely trust supplier body quality control reports?
• Can you bisque fire at cone 02? Yes. But why? How?
• Can you brush a dipping glaze on to leather hard ware? No.
• Can you dry a mug with handle in two hours? Yes.
• Can you make a black-burning stoneware using black iron oxide?
• Can you make things from zircopax? Yes.
• Cannot get Nepheline Syenite? Here is what to do.
• CaO is a strong flux but it can cause crazing
• Car after refractory base poured - Lindoe gas kiln
• Car floor of Lindoe gas kiln
• Carbon burnout in a ball clay
• Carbonate gassing can cause glaze blisters
• Carbondale Red fired clay bars
• Carefully measure specific gravity using a scale and graduated cylinder
• Casey is unloading a truckload of Nepheline Syenite
• Cassiterite W Quartz
• Cast handle on thrown mug, pulled handle on cast mug
• Casting plates, is it practical?
• Casting pure nepheline syenite
• Casting Zero3 Porcelain
• Cat litter, is it really just clay?
• Catching the light on a translucent porcelain
• Celadon slab plate by by Luke Lindoe
• Celebration Posters Project
• Celestite - Madagascar
• Celestite crystal glaze
• Celestite crystal glaze
• CERA-1 Open Source Clay 3D Printer Extruder
• Ceramic beer bottles with iron red glaze
• Ceramic business card of Tony Hansen
• Ceramic Fashion
• Ceramic materials can vary widely in density
• Ceramic Oxide Periodic Table
• Ceramic Stain Toxicity Label
• Ceramic tiles from Alberta and Saskatchewan clay deposits
• Ceramic tissue transfers: Good goat, better pig
• Ceramic, the ultimate material
• Cerussite And Barite
• Chart of residue on 325mesh common for different glaze types
• ChatGPT is surprisingly wrong about the causes of glaze crawling.
• ChatGPT photo recreation example
• ChatGPT was completely wrong about the cause of glaze crazing in 2023!
• ChatGPT woke me up about making my own frits.
• Cheap Amazon glaze mixer, how does it stack up?
• Chipping edges on handmade terra cotta tile. Why?
• Choose the right transparent glaze to cover your underglaze decoration
• Chrome oxide original container bag
• Chrome oxide powder
• Chrome tin pinks are easier using a stain than chrome and tin
• Chronic exposure to this causes silicosis
• Chrysacolla - Peru
• Chrysocolla Rock
• Chunks of metal found in contaminated truckload of kaolin
• Cielab color space
• Cimbar Cimtuff 9115 Certificate of Analysis Report
• Cimtuff 9115 vs Natural Talc C-98 in a low fire white body
• Classic Medalta Potteries Beer Bottle Make this mold using OnShape and Fusion 360
• Clay cracking often happens because of uneven drying, not lack of grog
• Clay from below a bog, ready to throw right out of the ground!
• Clay in a glaze recipes. Why is it there? What happens when there is too much?
• Clay is tearing out of the pugmill die? Why?
• Clay lab report. Is this really what you need?
• Clay shmucker
• Clay, feldspar, wollastonite, silica and frits are insoluble. Right?
• Clays that do not bloat no matter how much they are overfired
• Cleanest kaolin porcelain vs. ball-clay-only porcelain!
• Clear Quartz
• Click here for case-studies of Insight-Live fixing problems
• Close up of black coring: Is it carbon? Nope. Is it always bad? Nope.
• Close-up of cone 10R celadon bubbles suspended in the glass
• Close-up of Floating Blue on cone 6 dark/buff burning bodies
• Closeup of feldspar deposit in the MGK Minerals quarry in India
• Closeup of Halloysite particles
• Closeup of in-situ quartz mineral at the MGK quarry site in India
• Closeup of oil spot glaze at cone 8
• Closeup of original floating blue recipe at cone 6
• Closeup of Shino glazed small bowl from Japan
• Closeup of the polygon surface of a cast mug
• Closeup of unglazed surface of small Bizen bowl
• Closeup of unglazed surface of small Shigaraki bowl
• Clouding in a cone 7 clear glaze after ware in use
• Clouding varies with these cone 04 terra cotta glaze recipes
• CMC gum in the water is preventing this powder from slaking
• CMC Gum is magic for multi-layering, even for raw Alberta Slip
• CMC Gum ruined a batch of this glaze
• CMC gum solutions can go bad
• CMYK color separation for InkJet printer
• CMYK Colorspace
• CMYK Print heads for an inkjet printer in the tile industry
• Co-locate the QC Lab/Studio With Production: So many good reasons to do this.
• Coarse body fires with smoother glaze
• Cobalt and iron overglazes bleeding into the matte glaze
• Cobalt in a transparent glaze: Color varies with thickness
• Cobalt oxide contamination in a transparent glaze at cone 6
• Cobaltoan Dolomite - Congo
• Code numbers are the key to organizing your studio or lab
• Coffee Clay now available
• Colemanite and what its decrepitation does in glazes
• Color matching restoration project: Engobe on fired brick
• Color variation in wall tile: Why are these edges darker?
• Coming soon: Throw the teapot and slip-cast the handle and spout
• Commercial brushing glaze on a non-gummed dipping glaze: Crawling
• Commercial glazes gone bad. Can they be used?
• Commercial glazes may or may not work on your clay body
• Commercial glazes on decorative surfaces, your own on food surfaces
• Commercial supposedly safe glazes leaching. A liner glaze is needed.
• Commercial ultra gloss glazes from IKEA are cutlery marking
• Common dipping glazes converted to jars of high SG brushing
• Compare powder color of super white kaolins
• Compare Ravenscrag and Alberta Slip tenmokus at cone 10R
• Comparing frit solubility
• Comparing glaze melt fluidity balls with their chemistries
• Comparing the fired glaze specks from different iron oxide brands
• Comparing the melt fluidity of two shipments of Custer Feldspar
• Comparing two brands of calcium carbonate
• Comparing two glazes having different mechanisms for their matteness
• Comparison of the swelling of a calcium and sodium bentonite
• Comparison of three volcanic ash chemistries
• Compression of the base is the key to avoiding S-cracks? Wrong.
• Cone 03 bowl has the strength of high-fire porcelain
• Cone 03 stoneware. Red and white body and slips. Clear glaze.
• Cone 04 ware that you know is food safe
• Cone 1-4 stoneware by mixing a low and medium temperature body
• Cone 10 mug is crazing after a year. That's OK because it's high-fire, right?
• Cone 10 Reduction Fired Beanpot by Tony Hansen
• Cone 10 reduction fired transparent glaze with 12% iron oxide
• Cone 10 reduction iron red cone 10 glaze
• Cone 10 Reduction stoneware with Ravenscrag Glazes
• Cone 10 Reduction with Alberta and Ravenscrag Slips
• Cone 10 Reduction, the home of an amazing oxide: Iron
• Cone 10R beanpot glazed with Alberta Slip (100%).
• Cone 10R celadon at cone 6? Ravenscrag:Alberta GR6-N recipe.
• Cone 10R dolomite matte effect at cone 6 oxidation
• Cone 10R dolomite matte glaze with 5% manganese dioxide
• Cone 10R Gunmetal black glaze made using Alberta Slip
• Cone 10R gunmetal black pure Alberta slip glaze
• Cone 10R heavily grogged vitreous body that actually throws
• Cone 10R kiln variation shows in tenmoku glaze
• Cone 10R load of fired ware in Plainsman gas kiln
• Cone 10R mugs made with the casting-jiggering process
• Cone 10R porcelain (left) vs cone 03 porcelain (right)
• Cone 10R reduction-fired vase by Tony Hansen
• Cone 10R stoneware clay with and without barium carbonate
• Cone 10R Tenmoku Ron Roy cup walks a delicate balance
• Cone 10R variegation and crystal magic
• Cone 2: Where we see the real difference between terra cottas and white bodies
• Cone 5 reduction mug (left) and cone 6 oxidation mug (right)
• Cone 5 vs Cone 6 Polar Ice porcelain mugs
• Cone 5R mug with GR6-A Ravenscrag glaze
• Cone 6 black with a second layer of oatmeal glaze
• Cone 6 bowl demonstrates a starter wood ash glaze recipe
• Cone 6 copper glaze works because of the fluid-melting base recipe
• Cone 6 engobe becomes super white with 20% zircon added
• Cone 6 Fluid-Melt Transparent Glaze - Jackpot!
• Cone 6 glaze speckling mechanism
• Cone 6 glazes can seal the surface surprisingly early - melt flow balls reveal it
• Cone 6 GR6-E Ravenscrag Raspberry glaze
• Cone 6 Grolleg porcelain with 10% manganese alumina pink stain
• Cone 6 Grolleg, New Zealand porcelains vs. BMix
• Cone 6 iron red with a catcher glaze
• Cone 6 kaolin porcelain verses ball clay porcelain.
• Cone 6 oil-spot glaze effect, what works and does not work?
• Cone 6 oxidation wood ash glazed vase
• Cone 6 Polar Ice porcelain with G2934 matte glaze by Brenda Wolf
• Cone 6 porcelain decorated via slip trailing
• Cone 6 porcelain marbled and thrown
• Cone 6 rutile blue glaze on a black porcelain body
• Cone 6 rutile floating blue effect lost. Then regained.
• Cone 6 stoneware coffee mug with a letterpress-made stamp
• Cone 6 translucent marbled bowl by Tony Hansen
• Cone 6 transparent way better without Gerstley Borate. I surgically removed it to create G2926B!
• Cone 6 whiteware vs. vitreous porcelain when it breaks
• Cone 8 oxidation wood ash glazed planter by Tony Hansen
• Cone-to-Temperature Chart - Plainsman Clays
• Cones bending badly
• Cones bending badly, cones bending goodly
• Cones bending theoretically, cones bending actually
• Confirming slip viscosity using a paint-measuring device
• Control gel using Veegum, brushing properties with CMC gum
• Control of Matteness!
• Convert a Filament Spool into a Banding Wheel
• Converting a glossy transparent glaze to a calcia matte A ten-minute video to give glaze nerds goose bumps!
• Cooling rate drastically affects the appearance of this glaze
• Cooling speed affects opacity in G2934 matte glaze
• Copper blue-green cone 6 porcelain mugs
• Copper can destabilize a glaze and make it soluble
• Copper can produce bright red glazes in correct reduction firing
• Copper carbonate fuming
• Copper Carbonate is beginning to melt. When?
• Copper carbonate powder
• Copper does not necessarily cause glazes to leach if used in moderate amounts
• Copper fluxes a matte glaze at cone 6
• Copper green mugs
• Copper oxide (2%) in an otherwise stable cone 6 oxidation glaze fluxes it
• Copper oxide needs a fluid-melt transparent to produce a glossy glaze
• Copper red reduction glaze at cone 9 reduction
• Cordierite In Quartz
• Core sampling at a Plainsman quarry during summer 2021
• Cornwall stone powder variation
• Corundum On Feldspar
• COSORI Food Dehydrator as a lab/studio drier
• Could a difference of only 0.1% iron affect the clarity of a transparent glaze?
• Could inclusion stains work at cone 10 Reduction?
• Could low fire be more practical for large decorative plates?
• Could oxidation porcelain look like reduction blue porcelain?
• Could these bentonite particles cause specking in a porcelain?
• Covia nepheline syenite bag as of 2021
• Covia nepheline syenite demonstrates the incredible fluxing power of Veegum
• Cracking casseroles. Why?
• Craft store selling traditional terra cotta ware in Mexico 2020
• Crawling can happen when paint-on glazes are layered over dipping glazes
• Crawling glaze on slip cast ware is common
• Crawling glaze on the convex edges of sanitaryware
• Crawling glazes withdraw into islands during melting The cause is almost always obvious upon seeing the recipe
• Crawling in G2934Y Zircopax white glaze: Here are some fixes.
• Crawling on a thickly applied glaze (cone 6)
• Crawling on sanitary ware. Laydown is the first suspect.
• Crawling sanitary ware glaze sourcing Al2O3 from only feldspar
• Craze city: Feldspar and Nepheline Syenite on cone 10R porcelain bodies
• Crazed iron reduction fired vase by Luke Lindoe
• Crazing due to moisture expansion in a porous low fire body
• Crazing kills ware strength: These two commercial brushing glazes prove it.
• CreaDigit by System Ceramics
• Creating a Body/slip Equilibrium in Terra Cotta Ware
• Creating a flange on a 3D printed two-half shell mold
• CretaPrinter
• Cross section comparison between cone 04 terra cotta and cone 6 iron stoneware
• Cross section is an important factor in avoiding cracks
• Cross section view of the inside and outside glazed walls of a porcelain vessel
• Crucible with alumina oxide liner makes a clean glass ingot
• Crying dragon
• Crystal Glazes book 1
• Crystal Glazes book 2
• Crystalline and vitreous silica molecular structure
• Crystalline glazed vase by Rod and Denyse Simair
• Crystalline glazed vase by Rod and Denyse Simair
• Crystalline Glazes are a Triumph of DIY No short cuts, just hard work, patience and good records
• Crystalline plate made by Holly McKeen.
• Crystalline silica warning on a box of clay: React instead of overreacting.
• Crystallization of Rutile at cone 6 completely subdued? How?
• Crystallization of this glaze gives insight into why it can host the floating blue effect
• Crystals found growing in a glaze containing lithium carbonate
• Cuerda seca black-line recipe for low fire needs revision
• Cuerda seca is a flexible technique at any temperature
• Cuerda seca tiling example
• Cuphead for Shimpo jigger wheel
• Custer Feldspar 2021 data sheet
• Custer Feldspar vs Nepheline Syenite at cone 8 oxidation
• Custer feldspar vs. G200 feldspar
• Custom-printed rib smooths this plaster surface
• Cutlery marking here is directly related to the chemistry of the glaze
• Cutlery marking in commercial tableware
• Cutlery marking on matte black glaze
• Cutting a terra cotta dish in half with a diamond saw from Amazon
• Cutting the disk for a DFAC drying factor test
• Danny Downsized: He's Being Outsourced. He should have seen this coming!
• Dark Umber-Stained Engobes on M340 at cone 6
• Deairing mixer pugmill at Plainsman Clays
• Decal firing to 1500F has darkened 10R Alberta Slip glaze
• Decal on a raw body surface
• Decomposing manganese granular particles are causing this stoneware to bloat
• Deep blue Mother Nature's porcelain with rutile glaze
• Deep, deep blue without any cobalt. How?
• Dejected dragon
• Delayed crazing is a RED LIGHT. Pay attention!
• Delflocculation accomplishes the seemingly impossible
• Dental 3D printing has achieved the holy grail: uV hardening
• Designing your own humidity controlled tunnel drier
• Desktop INSIGHT MDT dialog showing kaolin LOI
• Desktop INSIGHT showing formula and analysis side-by-side
• Detail of the corner construction of the plaster table frame
• Devitrification of a transparent glaze
• DFAC disk under a heatlamp
• Diagnosed with chronic spontaneous urticaria? Is it caused by the pottery clay you are using?
• Difference between oxidation and reduction! GR10-C matte on Plainsman H443
• Different runs of Plainsman Red Fireclay
• Digitalfire 4Sight Server logo
• Digitalfire Insight 4.1 running on DOS cerca 1983
• Digitalfire Insight 5.0 running on Windows 95
• Digitalfire Insight 5.1 running on Windows 95
• Digitalfire Insight in 1983. On a Macintosh 128K and original IBM PC.
• Digitalfire Insight materials dialog window
• Digitalfire Insight running on a Macintosh middle 90s
• Digitialfire Studio Potter Books 1
• Digitialfire Studio Potter Books 2
• Digitialfire Studio Potter Books 3
• Dilatometer curve of vitreous porcelain (red) vs. stoneware body
• Dip glazing the outside of a mug
• Dip-glazing vs. brush-on glazing: Which gives the more even surface?
• Discoloration as porcelain ages
• Distinct Handles
• DIY clay bodies via slurry mixing: Consider the advantages.
• DIY glazes can do something commercial ones cannot: Go on evenly, in one coat and dry in seconds.
• DIY natches, spacers and embeds in a plaster handle mold
• DIY the commercial glaze on mug #1: You must consider five factors to make it work
• DIY wheel mount ball mill rack
• Do ceramic material powders go bad?
• Do gas kilns produce silica dust?
• Do grog additions always produce better drying performance?
• Do not glaze bisque ware when it is too wet
• Do not rely on material data sheets, do the testing
• Do these kiln elements need replacing?
• Do you know the difference between dipping, brushing, base coat glazes?
• Do you really need a grog body for sculpture?
• Does adding boron alone always increase glaze melt?
• Does ChatGPT know the recipe of this commecial glaze? Yes, it thinks it does. And its reasoning is sound.
• Does Grolleg whiten a glaze the same as it does a body?
• Does iron oxide stain a dolomite body red? Nope!
• Does manganese dioxide produce metal fumes at cone 6?
• Does this terra cotta clay have an LOI higher than kaolin? No.
• Does Zircopax only whiten and opacify a clear glaze? No.
• Dolocron Dolomite original container back side
• Dolomite and talc matte glazes in reduction
• Dolomite bamboo matte glazed cone 10R mug
• Dolomite Crystals
• Don't fire Coffee Clay past cone 6
• Don't look at the outside of this mug. The inside is where the magic and potential are!
• Don't waste expensive tin oxide, propeller mix glazes well
• Double auger mortar mixer
• Double layering of contrasting colors and melt fluidities
• Double-slip layer incised decoration: A challenge in slip-body fitting
• Downloadable 3D model for melt flow tester block mold
• Dragonite based cone 6 porcelain vs. NZK, EPK
• Dragonite Halloysite crude material
• Draw a triangular plate press mold in Fusion 360
• Drawing 1 of Lindoe gas kiln
• Drawing 2 of Lindoe gas kiln
• Drawing 3 of Lindoe gas kiln
• Drawing 4 of Lindoe Gas kiln
• Drawing 5 of Lindoe gas kiln
• Drawing 7 of Lindoe gas kiln
• Drawing 8 of Lindoe gas kiln
• Drawing and first test cone mold for slip casting
• Drawing for sieve shaker
• Dried test bars stacked into an electric kiln for firing
• Drip glazing and bare outsides: Deceptively difficult.
• Drop-and-soak firing fixes this pinholing problem
• Drying a flat slab of clay between sheets of Gyproc
• Drying and firing a 31-inch porcelain plate without cracks. How?
• Drying cracks in bricks - but no data to determine best response
• Drying mugs in front of a fan in 2 hours. No Cracks.
• Drying shrinkage + firing shrinkage ≠ total shrinkage
• Drying the sieves after clay powder has been washed through
• Duncan spray and brushon sealers
• Dunted calciner - This clay that cannot withstand thermal shock
• Duplicating the G2571A dolomite matte using a Ravenscrag Slip based recipe
• Durst Inkjet Printer
• Each Mason stain has its own personality for coloring the body
• Earthenware mugs
• Easier way to make a plant pot mold via 3D printing
• Eight truckloads of the same kaolin fired at cone 10R
• Eighteen Plainsman M390 mugs from half a box of clay!
• El Dorado of Pottery Clay Finally Found!
• Electric hobby kiln
• Emulating a speckled reduction fired stoneware in oxidation
• Encapsulated stains are firing with a mass of bubbles and pinholes
• Engobe adjustment parameters
• Engobe fit test not what it seems
• Engobe texture like this: How?
• Engobe with too much gum vs. one with too little
• EP Kaolin test bars being removed from the drier
• EPK fired bar (top) vs Grolleg kaolin at cone 10R. Why shrinking more?
• EPK fired test bars, data, certificate and the data
• EPK slurry has been poured onto plaster table for dewatering
• EPK test specimens made (SHAB bars, LDW bar, DFAC disk) They are ready for drying
• ESP32 devices with cases, screens and batteries
• EU Food Contact testing limits are changing - 2021
• Even heavy soluble salts may not have a significant affect on the glaze
• Even slight over-deflocculation of casting slips can be a problem
• Even with good kiln wash plucking can sometimes occur
• Ever wondered why your dealer can quickly get the clay you need?
• Every studio, lab, classroom needs a good label printer
• Example of a certificate of analysis for a kaolin
• Example of a commercial spodumene 2022
• Example of a data sheet for Copper Carbonate
• Example of a lab drier with heating elements, fan and temperature indicator
• Example of a logo done using a polymer plate
• Example of a modern automatic firing reduction gas kiln for use by studio potters
• Example of a tapper clay fired to cone 8 and 10 oxidation and 10 reduction
• Example of a whole rock chemical analysis lab report
• Example of batch recipe with additions
• Example of catch basin dish used for crystalline glazing
• Example of COE curves considered a good fit for body and glaze
• Example of flashing from wood firing
• Example of flashing on ware from a Manabigama wood fired kiln
• Example of how bubbles dissipate in a glaze with increasing temperature
• Example of the blisters from Barium Carbonate decomposition
• Example of the value of a good engobe
• Example of variegation by thickness-induced boron blue
• Example thermogravimetric analysis of calcium carbonate
• Examples of bismuth glass compositions and their expansions, softening points
• Examples of raw mineral rocks
• Examples of raw mineral rocks
• Examples of the kinds of skills ceramic manufacturers need
• Exploding clay. How do you do that?
• Exporting insight-live recipes to a CSV file
• Exposure Assessment to Lead, Cadmium, Zinc, Copper Released from Ceramic and Glass Wares
• Extreme example of 3D printed mold spouts
• Extreme handle fitting: A Medalta v.5 ball pitcher
• FabiTalc SDS
• FabiTalc Technical Data Sheet
• Fan Brushes - The best way to apply brushing pottery glazes
• Fastest possible 3D print of a case mold part
• Faux majolica next level: Stoneware! But the glaze is crawling under the colors.
• Feeling good about the glazes we use on functional surfaces
• Feldspar from Okene, Koji, Nigera
• Feldspar saves this iron red, black coring reduction body
• Feldspars, the primary high temperature flux, melt less than you think.
• FeO (iron oxide) is a very powerful flux in reduction
• Ferro Frit 3110 vs Fusion F-75 at cone 04
• Ferro Frit 3124 vs Fusion F-19 at cone 04
• Ferro Frit 3124 vs Fusion F621/19 at cone 04
• Ferro Frit 3134 is NOT A SUBSTITUTE for Gerstley Borate
• Ferro Frit 3195 vs. Fusion Frit F-2 at cone 06
• Ferro Frit 3249 vs Fusion F-69 at cone 04
• Ferro Frit 3602 melt flow over many temperatures
• Fibers visible along a broken edge of a dried paper clay slab
• Fight the dragon on-line or off-line
• Fight the dragon with Insight-live
• Final cast-jiggered cone 6 mug beside original 3D-printed mock-up
• Fine tuning glaze shrinkage vs. hardness
• Fine tuning maturity of a buff stoneware: It is about the data
• Fine tuning the amount of Darvan in a terra cotta slurry
• Fine-tuning the thixotropy of a glaze or engobe For dipping, this is so much better!
• Finished bowl jigger mold encased in a PLA 3D print
• Finished cast v1 stoneware beer bottles
• Fire breathing cartoon dragon
• Fire organic ceramic shapes with this warping body for cone 6
• Fire-Red and Restone fired test bars
• Fire-Red fired to cone 10R with Ravenscrag Slip as an inner glaze.
• Fired bars of a bentonite used in porcelains! Is this possible?
• Fired bars of Cedar Heights Bonding clay
• Fired bars of PV Clay and a substitute fired at six temperatures
• Fired clay test bars ready for measuring
• Fired deformation comparison between two porcelains
• Fired specks in gas-fired porcelain. Where is the contamination from?
• Fired strength tester
• Fired test bars of Pioneer Kaolin
• Firing a porcelain in less than 4 hours total
• Firing an impossible-to-fire piece was possible!
• Firing one cone lower improves the glaze result
• Firing schedules at insight-live.com
• Firing shrinkage variation between various clays
• First ball pitcher casts successful. Sort of.
• First Mug From v1 Prototype Mold
• First try with my 3D printed frog
• First v1 Plaster Mug Case Mold Extracted from 3D-printed block mold
• First working mold ready for pouring
• Fitting an engobe to have the same firing shrinkage as the body
• Five common frits fired at 1850F
• Fix obvious issues in Glazy recipes before even trying them
• Fixing a crawling problem with a measured CMC addition
• Fixing a crawling problem with Ravenscrag Tenmoku
• Flaking kiln wash on a silicon carbide kiln shelf
• Flame thermal shock failure in two porcelains: surprising result
• Flame thermal shock failure test
• Flanges enable an all-in-one 3D printed block mold for slip casting
• Flasks by Brian Weibe, Kelowna, B.Cl.
• Flat thin vitreous tiles being made for GMFA melt fluidity testing
• Flattening v1 Mating Mold Faces
• Flow diagram of a pottery operation
• Flow tester master model showing dimensions
• Flow tester model you can 3D-print yourself
• Flow tester tells me if I have overfluxed the glaze
• Flue system on car for Lindoe gas kiln
• Fluid melt glaze needs uneven surface to develop visual interest
• Fluorite - China
• Fluorite - Henan, China
• Fluted Footring
• For even coverage white majolica glazes must be applied by dipping
• Forming a glaze into balls for melt fluidity testing
• Forming the pie-crust mug
• Foundry Hill Creme fired test bars
• Four boron frits with vastly different melting: Knowing about this could debubble your clear glaze.
• Four cone 04 glazes cover a brown engobe and dolomite body differently
• Four drops of Davan deflocculant fixed the problem!
• Four materials used for pottery in Japan
• Four North American ball clays fired at high temperature
• Four stages of making the calciner plaster mold
• Four types of aggregate used at Plainsman Clays
• Freeze thaw damage in concrete
• French Émail ombrant technique highlights design by glaze thickness alone
• Freshly decorated pieces of slipware
• Freshly slipped jug demonstrates the importance of thixotropy
• Frit FZ556 matte frit is really matte!
• Frit melt fluidity comparison - 1300F
• Frit Melt Fluidity Comparison - 1800F
• Frit Melt Fluidity Comparison - 1850F
• Frit melt runoff winner
• Frit processing drawing
• Frit processing equipment
• Frit production process drawing 2
• Frit shards from the smelting furnace
• Frit, Soda Ash and Custer Feldspar fired at cone 10R
• Frits do not dissolve in water, right? Wrong.
• Frits fired to 2050F
• Frits instead of raw zinc, lithium, barium, strontium
• Frits melt so much better than raw materials
• Frits melt so much more evenly and trouble free
• Frits vs. raw materials in glazes: It is not just about the chemistry
• Frits work much better in glaze chemistry
• From Scribbles to Success: Fixing This Glaze Recipe
• Front of Sil-co-sil Silica original container bag
• Front view of the Plainsman Clays from the park
• Front view of the Plainsman Clays plant
• Frozen clay suffers laminations. Does that really harm it?
• Functional ware at low fire! Don't dismiss it just yet.
• Fundamentals of Fluid Mechanics - book
• Fusion 360 on YouTube
• Fusion Bismuth Frit FZ -915 fired to cone 6
• Fusion F-12 vs Ferro Frit 3134 at cone 04
• Fusion Frit 524 melt behavior 1600-1850F
• Fusion Frit FZ-16 melt flow over many temperatures
• G-Code 3D Printer instructions
• G1214M, W, N, O and S with Mason stains
• G1214Z matte glaze melt flow
• G1214Z1 at cone 6 with 10% Zircopax and 5% tin oxide
• G1214Z1 on M390 and Plainsman Coffee Clay at Cone 6
• G1215U vs. G1215W glaze flow test
• G1216M transparent glaze on Plainsman M370
• G1916Q on L215, L212, L210, L213, Buffstone at cone 03
• G1916Q transparent on terra cotta body at cone 06, 05, 03
• G1916QL1 brushing glaze fired to cone 06, 05, 04
• G1947U cone 10 transparent on Plainsman H550 and H570
• G1947U transparent glaze (left) vs. Ravenscrag Slip at cone 10R
• G200HP Feldspar bag
• G2571 Cone 10R silky matte glazed mug
• G2571A at 1.75 specific gravity still works, but goes on very, very thick
• G2571A at cone 10R with a cobalt and chrome addition
• G2571C rutile blue cone 10R glaze on stoneware
• G2571C rutile blue on P700 at cone 10R
• G2851I glazed tile.
• G2896 Ravenscrag Plum Red iron red cone 6 glaze
• G2917 Ravenscrag floating blue as a dipping and brushing glaze at cone 6
• G2926B cone 6 transparent liner glaze: Proven, reliable, durable
• G2926B cone 6 transparent with 10% Zircopax and 5% tin oxide
• G2926B glaze can precipitate crystals like this
• G2926B using Fusion Frit F-12 instead of Ferro 3134
• G2926B with 10% Mason 6304 Stain on Polar Ice Casting
• G2926S lower expansion cone 6 base liner glaze
• G2931F Ulexite-based transparent bubbles, G2931K frit-based version does not
• G2931K Transparent cone 03 with 15% inclusion stains
• G2931K Zero3 transparent glaze on Zero3 Fritware Porcelain
• G2934 cone 6 DIY MgO matte glaze: Reliable, durable, adjustable, stainable
• G2934 cone 6 matte glaze + 5% Zircon is crawling
• G2934 Cone 6 matte on Plainsman P300 porcelain
• G2934 Cone 6 Matte with 10% Zircopax and 5% tin oxide
• G2934 fired at cone 7 on Plainsman M370, P300 and M340
• G2934 not working well when sprayed: What to do?
• G2934 plus 10% silica actually flows more
• G2934 using Fusion Frit F-19 instead of Ferro 3124
• G2934 vs G2934Y melt fluidity
• G2934 vs. G2934Y cone 6 yellow mattes
• G2934Y glaze on Standard #112 body at cone 6
• G2934Y glaze with stains on P300 and Polar Ice
• G3806D cone 6 glaze with copper carbonate, copper oxide
• G3840 Shino on Grolleg/New Zealand kaolin porcelain at cone 10R
• G3948A iron red cone 6 oxidation glaze at its best
• GA6-A at cone 5R on Plainsman M370, M350
• GA6-C Alberta Slip rutile blue at cone 5R
• GA6-C on a light and dark burning clay body at cone 6
• GA6A Alberta Slip base using Frit 3124, 3249 and 3195 on dark body
• GA6A Alberta Slip base using Frit 3249 and 3195 on buff body
• Galena sample
• Gas kiln near cone 10R in the Plainsman Clays studio
• Gemini removed these red lines
• Generating GHS Safety Data Sheets Automatically
• Gerstley Borate 50:30:20 glaze using Gillespie Borate instead
• Gerstley Borate is a volatile melting material
• Gerstley Borate is passing on to a better place. With a 300% price hike.
• Gerstley Borate official composition page from Laguna Clay
• Gerstley Borate substitutes chemistry comparison - ca. 2005
• Gerstley Borate vs Frit 3134 melt fluidity comparison
• Gerstley Borate vs. Gillespie Borate at 1550F (840C)
• Get a kitchen blender for mixing ceramic slurries
• Getting a chemical analysis of your ceramic powder
• Getting a consultant on Upwork
• Getting a start on testing Bentone
• Getting accurate firings in test kilns time after time.
• Getting the feldspar percentage right in an iron reduction clay body
• Gillespie Borate is doing something very strange at 1700F
• Glass platter made by Josh Simpson
• Glaze at 1.7 specific gravity on green-ware. Way too thick!
• Glaze blisters are a surface defect in fired ceramic glazes.
• Glaze bubbles behaving badly! We see it in a melt fluidity test.
• Glaze bubbles on buff and red burning bodies at cone 6
• Glaze calculation in the 1960s
• Glaze chemistry works best when changing material amounts, not material types
• Glaze cracking during drying? Wash it off and then do this.
• Glaze cracks on slip cast ware but not thrown pieces
• Glaze crawling on single-fire - solved by bisque firing
• Glaze defects are more visible with certain glazes
• Glaze dipping a mug
• Glaze dunking videos reveal the value of thixotropy
• Glaze fit for various clays on a chart
• Glaze is crawling on overlap when it did not do so before. Why?
• Glaze is lifting part of the body
• Glaze is shivering at the engobe-body interface
• Glaze large bowls inside-and-out by brushing: By turning your dipping glaze into a brushing glaze
• Glaze layering to get variegation
• Glaze melt flow tester after casting
• Glaze melt fluidity comparison between G2931F and fritted G2931K show the effect of LOI
• Glaze Melt Fluidity Not Evident on Typical Tests
• Glaze recipes online waiting for a victim to try them!
• Glaze reflectance measurement
• Glaze the bottoms of stoneware mugs and fire them on the shelf
• Glaze under excessive compression can flake off the engobe
• Glaze with an encapsulated stain is bubbling. It needs Zircopax.
• Glazes Are Crazing on This Casting Porcelain The casting process enables a unique and effective fix
• Glazes of the same chemistry: The fritted one melts better
• Glazing for the photo instead of the piece. Is this a “science project” or a functional glaze?
• Glazing ware only on the inside - the hazard
• Gleason ball clay fired test bars from cone 7-11 oxidation and cone 10 reduction
• Global supply chain issues? Learn to mix and adjust your own bodies, glazes
• Glossy blacks are best made adding a black stain to a quality base transparent
• Glow in the dark glazes
• Glue-sticking the 3D printer bed for better adhesion
• Going to screen a glaze? Use the brush, not the spatula
• Gold decal on a gunmetal matte black glaze
• Gold lustre not working. What could the problem be?
• Good records can pull you out of the rat hole you went down
• GR10-B Ravenscrag transparent glaze (with 10 talc)
• GR10-E 50:50 Alberta Slip:Ravenscrag Slip celadon at cone 10R
• GR10-E Ravenscrag:Alberta Slip with 10% calcium carbonate
• GR6-E and GR6-L Ravenscrag Pink glazes side-by-side
• GR6-H glaze at cone 5R on Plainsman M370 and M350
• GR6-H Ravenscrag Oatmeal glaze cone 6
• Gradient test bars show how a range of temperatures affects a clay
• Granite crystal glaze
• Graph of wall tile fast-fire frits vs. traditional
• Grog before it is ground. Yes, it is bricks.
• Grog does not always have the intended effect
• Grog particles from a sculpture clay body
• Grog particles having a narrow particle size range
• Grolleg vs New Zealand - Which kaolin is better for translucency?
• Growing incredible glaze crystals is also about the chemistry
• Guess how many ceramic supply companies there are in Canada and the US
• Guess which mugs are made using an NZ kaolin?
• Guess which of these fired clays employs New Zealand kaolin
• Gulgong Clay from NSW, Australia
• Gum content in glazes can have a dramatic effect on drying time
• Gunmetal black mug demos liner glazing: Safe glaze inside, pigmented matte outside.
• H435 large vase fired at cone 10R by Tony Hansen
• H443 wine set fired at cone 10R by Tony Hansen
• Halloysite particle shapes (left) vs. Kaolinite (right)
• Hand-build mugs to cut the weight in half!
• Hand-tooling a mug model vs. 3D-printing a mold to cast it
• Handbuilt vase with thrown neck by Tony Hansen
• Handcuffed dragon
• Handles on UK terra cotta slipware
• Hard chunks in pugged clay
• Has a cone 5 bisque released Pandora particles?
• Hash-Tag earthenware mug
• Hawthorne fireclay is really more of a stoneware clay
• Headless E-Commerce suddenly became compelling
• Health warning phrases on a bag of ball clay
• Health warning phrases on a bag of ground silica
• Health warning phrases on a bag of Kaolin
• Heavily speckled reduction fired porcelain Shino bowl by Glenn Lewis
• Heavy and thick plates cracking? What to do?
• Heavy duty mixer mounted on a steel pole
• Heavy Slip Cast Stoneware Mugs
• Here is a good start to doing serious ceramic production at home
• Here is another reason never to use only a stain-water mix for pottery decoration
• Here is how far some potters are taking drip glazing
• Here is how plastic pottery clay should behave (assuming it has not been frozen)
• Here is how vigorously a deflocculated ceramic slurry should be mixed
• Here is motivation to make your own underglazes!
• Here is my setup to make brushing glazes and underglazes by-the-jar
• Here is something potters can do that industry cannot do!
• Here is what can happen when a stoneware clay is overfired
• Here is what can happen with iron-oxide-based overglazes
• Here is what Covia Nepheline Syenite does from cone 3 down to 05
• Here is what digitalfire.com looked like in 1997!
• Here is what happens if you do not sieve your glazes when needed
• Here is what happens when a glaze has too much raw clay
• Here is what happens when an overnight 3D print goes wrong
• Here is what happens when I underestimate slip pressure
• Here is what happens when you fire a heavy, thick piece in an electric kiln
• Here is what happens when you put a 3D-printed PLA part in hot water
• Here is what happens when Zero4 porcelain gets lit up
• Here is what it can take to fire heavy pieces in an electric periodic kiln
• Here is what it takes to make sure P700 has minimal fired specks
• Here is What Processing a Clay Can Do
• Here is why Albany Slip was hard to use: Crawling
• Here is why Gillespie Borate is crawling some glazes
• Here is why new grinding equipment is needed
• Here is why Petalite and Spodumene will seldom substitute for Lithium Carbonate
• Here is why porcelain engobe does not fit stoneware
• Here is why Spodumene powder glistens in the light
• Here is why you don't want an engobe to melt
• Here's how we used to record test results before insight-live.com
• Heres evidence that using a black stain is safer than manganese dioxide
• Here’s how we make a base brushing engobe
• Here’s my setup for pouring plaster in the kitchen!
• Here’s What Happens Without a Heat Gun
• High and low surface tension Frits
• High B2O3 imparts better melt fluidity, but also fewer micro-bubbles
• High drying shrinkage of Plainsman A2 ball clay (DFAC disk)
• High feldspar glazes craze. Don't put up with it.
• High LOI materials can turn your glaze into Aero chocolate!
• High melt fluidity is required to achieve the visual effect of this glaze
• High tension porcelain insulators Not like the porcelain you use for pottery
• High thermal expansion talc body cannot be COE-calculated
• High-manganese black-burning body at cone 6. Practical and safe to use?
• Highly melt fluid glazes that run are in style but do they produce quality ware?
• Home-made propeller mixer with mount and switch
• Houdini by SideFX
• How a kaolin and ball clay compare in a dry performance test
• How and where to have a glaze tested to learn its chemical analysis
• How bad can efflorescence be in natural clays? This bad!
• How bad can efflorescence on terra cotta be?
• How can Craft Crank sculpture clay be so plastic and smooth with this much grog?
• How can underglaze and engobe colors be this bright?
• How can we tell if a clay is really a fireclay without doing a PCE?
• How can you best tell if a base glaze is prone to pinholing with your body?
• How could only a 5% fine grog body be suitable for such large pieces?
• How do black, red and yellow iron additions compare in a glaze?
• How do metal oxides compare in their degrees of melting?
• How do you turn a base cone 10R dolomite matte into this beautiful tan?
• How do you turn a transparent glaze into a white?
• How does Gillespie Borate compare with the original Floating Blue recipe?
• How fast will Veegum settle in water?
• How I calculated a feldspar-to-frit replacement in a cone 10R clear glaze
• How I got a better matte black: Cone 5 instead of 6
• How iron particles in the body affect the look of a Tenmoku glaze
• How is it possible for the same body to work well at both cone 04 and 6!
• How long do you need to ball mill a glaze?
• How many degrees between these cone positions?
• How many porcelain mugs from one box of clay?
• How many simultaneous testing projects can you manage at once?
• How much CMC gum powder is in the gum solution you buy?
• How much does a glaze need to melt before it sticks to the body well?
• How much does a porcelain piece shrink on firing?
• How much does clay shrink when bisque fired?
• How much does the size of a piece change when it is bisque fired? Glaze fired?
• How much feldspar should be used in a Grolleg porcelain?
• How much gas escapes firing from cone 03 & 04?
• How much porcelain flux is too much?
• How much rutile can a glaze take before it becomes unstable?
• How much silica can some glazes accept?
• How much VeeGum is needed in a super white porcelain?
• How plastic is a pure kaolin? Could one use it pure for pottery?
• How reduction firing can affect glaze color
• How runs of Alberta Slip are compared in production testing
• How small can clay crystals be?
• How the flared-wall calciners are alble to stack
• How thick should a glaze be on stoneware?
• How to adjust the G1916Q low fire clear glaze when it crazes
• How to choose ceramic materials to source needed oxides
• How to decide what temperature to fire this clay at?
• How to draw a case mold for slip casting using Fusion 360
• How to dry these mugs evenly to avoid cracks
• How to get accurate firings with decaying thermocouples
• How to get more accurate firings time after time
• How to give children a good experience in working with clay
• How to include stains in chemistry calculations in Insight
• How to interpret the crack in a DFAC drying disk
• How to keep an iron-red glaze from being a bucket-of-jelly
• How to make a black cone 6 oxidation clay body
• How to make a ceramic time-bomb
• How to make a clear dipping glaze work over solid underglazes
• How to make a zero fired shrinkage clay
• How to make this glass pooling effect in pottery bowls
• How to matte Ravenscrag Slip at cone 10 by adding talc
• How to reverse-engineer a commercial transparent glaze
• How to stop an slip from running
• How to stop low fire clays from waterlogging
• How to test if an engobe fits a clay body
• How to turn a dolomite matte white glaze into a bamboo matte
• How we fixed this case of serious blistering
• HPM-20 and National Standard bentonites fired to cone 9
• Humbled by Clive Tucker
• Hybrid plaster/3D printed PLA mold demo It leverages the advantages of both materials
• I can mix all this powder into that little bit of water to make a casting slip. How?
• I drink from these when I dream
• I have 161 grams of stain. I need to mix it into how much clear glaze slurry?
• I have always done it this way. Why is it not working now?
• I Just Made These Kiln Posts Using a Hand Extruder Get the v2 CAD drawing to do it yourself
• I made black and white brushing glazes from my base cone 6 transparent
• I notice small details about the clays I test? Want to know why?
• I Tested a Found-Clay: Was it suitable for pottery?
• I want this engobe to gel in ten seconds. Why?
• Idea: Gather rocks and fire them. Unexpected results!
• If you over fire a translucent porcelain like Polar Ice, what happens?
• If you think one slip fits any body, think again
• If your glaze can handle more silica and melt just as well then add it!
• Illmenite Granular in a porcelain clay body
• Imagine realizing that pottery you're selling is all going to craze!
• IMCO 400 Fireclay fired bars
• IMCO 800 Fireclay fired bars
• IMCO C-Red based terra cotta clay test
• IMCO C-Red: An exceptional red fireclay
• Imerys Glomax LL Kaolin original container bags - 2023
• Imposing an LOI in INSIGHT
• In clay body testing it is about the data. It reveals how a 20% feldspar addition affects this clay
• In pursuit of a reactive cone 6 base that I can live with
• In-plaster Anchors With Threaded Inserts
• Inadequate air-flow during clearing at the end of a reduction firing
• Incised decoration (left) vs. slip trailed decoration (right)
• Incised iron reduction fired vase by Luke Lindoe
• Incising a stoneware mug
• Incorrect craze-fixing advice is still common online: Well demonstrated using an AI-generated photo!
• Increasing zircon percentages in a transparent glaze on a brick clay body
• Incredible Mother Nature’s porcelain
• Industrial pugmills
• Industry can never make ware like a potter, right? These souvenir mugs might make you reconsider!
• Infill and support issues with 3D PLA prints
• Initial model drawing for a stoneware jug
• Ink jet decoration machine
• Ink jet tile decoration machine
• Inner engobe separating at the rim
• Inside a kiln with a Bartlett Genesis controller
• Inside detail of the construction of the plaster table frame
• INSIGHT calculation types
• Insight-Live comparing a glossy and matte cone 6 base glaze recipe
• Insight-live reference recipes - Many more and much better
• Instagram is just your street sign. But your website is the studio!
• Install issue when installed Insight for Windows
• Insufficient plasticity results in surface cracking during drying
• Intense flashing at cone 10R, courtesy of nepheline syenite tiles
• Ionic Forces Chart
• Iron oxide as a fining agent to debubble a low fire transparent
• Iron oxide goes crazy in reduction
• Iron oxide particle agglomerates produce heavy specking
• Iron oxide powder is available in many colors. Here are three.
• Iron oxide vacuums up glaze bubble clouds at cone 6
• Iron red glaze fired at cones 6, 5 and 4
• Iron red glazes
• Iron Red glazes look a little different in a flow tester
• Iron red reduction clay suitable for functional ware? How?
• Iron speckled cone 10 reduction stoneware with dolomite glaze
• Iron-Red high temperature reduction fired glaze
• Ironstone concretions producing speckle in a reduction fired pottery clay
• Is a brilliant metallic glaze surface possible without lead bisilicate?
• Is clear glazing a dark burning oxidation stoneware a good idea? Likely not.
• Is Ferro Frit 3124 a viable substitute for Frit 3134?
• Is industry misdirected by chemical analyses?
• Is inside-only glazing a good idea? We say it is not.
• Is it any wonder that glazes fire with defects?
• Is Lincoln 60 really a fireclay? Simple physical testing says...
• Is Mexican Terra-cotta pottery lead-glazed? Yes. Does it leach? Yes.
• Is that recipe you found online really what you think it is?
• Is the clay too stiff to use? Maybe not.
• Is the N505 cone 6 matte glaze recipe what you think it is?
• Is the V.C. 71 pottery glaze a true matte?
• Is this a COE calculation error?
• Is your clay supplier testing incoming materials? Monitoring the properties of clay bodies they sell?
• Is your underglaze forming a bond with the body?
• It dry shrinks much more yet cracks less. How is that possible?
• It is 2018. This Prusa MK3 3D printer is worth the extra cost.
• It is impossible to dry this clay. Yet we did it. How?
• It is not the speed of drying, but how even it is
• It is possible to spot a leaching glaze just by looking at it!
• It possible to make a thin flat porcelain tile from a plastic pottery body
• It takes 80 pallets of dry materials to make a run of 4000 boxes of M370
• IXL 45D clay
• IXL 45R fired bars
• IXL Industries clay quarry near Ravenscrag, Saskatchewan in 1984.
• Jasper Slip fired bars
• Jasper slip powder
• Jet mill
• Jigger arm assembly for a Shimpo RK2 pottery wheel
• Jigger arm from both sides
• Jigger wheel aluminum cuphead (for plates)
• Jigger wheel auminum cuphead (for cups)
• Jigger/Cast mugs 2019
• Jim Etzkorn jiggering a crock in 2013 at the historic Medalta Potteries
• Jim Marshall mural at the Heads Smashed In Buffalo Jump
• Jim Marshall mural Tapper Clay and H550 after firing
• Jim Marshall mural Tapper Clay and H550 before firing
• John Kurok and Pierre Aupilaldjuk
• John Porter visiting Plainsman Clays in 2023
• John Porter: Potter and my private tutor
• John Porter’s fired glaze samples are being catalogued
• Joining rules are different When clay is soft and plastic
• Jordan Fireclay fired test bars
• Just enough iron in this celadon to highlight the design
• Kaolin changes raw color in second shipment
• Kathy Ransom. M340 at cone 6.
• Kathy Ransom. M340 at cone 6.
• Kathy Ransom. M340.
• Kerajet P7 inkjet printer
• Keralab service
• Kiln Firing monitor - Going in the wrong direction
• Kiln wash that really works. How?
• Knapping Zero4 porcelain
• Knowing about recipe limits could save you the work of testing this glaze
• L215 and L210: Better color stoneware at cone 2!
• L3617 Cornwall Stone substitute vs. real Cornwall Stone
• L3685T-based engobes with 5% Mason stains added
• Lab testing a clay for its physical properties
• Laboradite Feldspar
• Labradorite Feldspar
• Labradorite Gem Feldspar
• Laguna B-Mix Cone 10R mugs with Alberta and Ravenscrag glazes
• Laguna B-Mix on Steroids: Wedge in some Plainsman Fire-Red!
• Laguna B-Mix, B-Mix+Fireclay with Ravenscrag GR10-A, GR10-C glazes
• Laguna Barnard Slip substitute fired bars
• Laguna Barnard Slip substitute sieve test
• Laminations in a jiggered bowl
• Laminations in pugged clay: Wedge it or lose the ware
• Laminations in unwedged clay
• Laminations: Will a studio pugmill solve the problem?
• Lamp base by Tony Hansen
• Landmark Book on the Clay Resources of Saskatchewan
• Lanxess iron oxide original container bag - back
• Lanxess iron oxide original container bag - Front
• Large and small stain particles with incident light
• Large calcining/roasting vessel made with non-grog clay
• Large cookie-cutter 3D-printed in four pieces
• Large mold a testament to what 3D printing can do
• Large particle grogs are difficult to produce
• Large reduction fired planter by Tony Hansen
• Large sculpture by Luke Lindoe - 1967
• Large transparent glazed bowls. Easy to make? No!
• Large wood-fired slip-decorated vessels by Kate Johnston of NC
• Layer slayers and jar junkies
• Layering glazes to get variegation
• Lazulite Siderite Quartz
• Lead bisilicate frit data sheet claims high resistance to leaching
• Lead bisilicate glaze crazing unexpectedly
• Lead bisilicate with his ugly borosilicate cousins at a cone 05 party
• Leaf fossil found in Plainsman 3D raw material
• Learn to draw and print a mixer propeller
• Learn to mix any of your glazes for these three application methods
• Lemon leaching test on a copper-containing glaze
• Length marker for SHAB test bars
• Lepidolite - Brazil
• Lepidolite - Rociada, Mexico
• Lepidolite ore
• Let me count the reasons this glossy white cone 6 glaze is pinholing
• Letterpress plates from BoxcarPress.com. Great for DIY stamping.
• Letterpress plates: Design for the draft
• Light-weight 3D printed plate-setters are coming
• Lignite can be big trouble
• Lignite contamination in manufactured porcelain body
• Lincoln 60 Fireclay bag
• Lincoln Fireclay is plastic, it can be thrown on a potters wheel
• Lindoe bowl
• Lindoe copper red bowl
• Lindoe gas kiln - Adding asbestos boards to roof
• Lindoe gas kiln - Asbestos sheeting applied to roof
• Lindoe gas kiln - Back flue construction
• Lindoe gas kiln - Back wall bricks inserted to support roof
• Lindoe gas kiln - Bagwall first stage
• Lindoe gas kiln - Burner port outside
• Lindoe gas kiln - First roof bricks in place
• Lindoe gas kiln - Gas kiln burner placement
• Lindoe gas kiln - Inside view 1
• Lindoe gas kiln - inside view of burner port
• Lindoe gas kiln - Inside view of slotted brick
• Lindoe gas kiln - Interior floor structure
• Lindoe gas kiln - Ready to fire
• Lindoe gas kiln - Top of wall, ready for roof
• Lindoe gas kiln - Walls complete, ready for roof
• Lindoe gas kiln - Walls done, ready for roof
• Lindoe gas kiln - Wooden roof form
• Lindsay Montgomery Majolica Plate: Lake of Fire (White Women Elected Trump), 2017
• Liner glaze is coffee-staining and leaching after two years. Is it toxic?
• Liner glazed, waxed and cut - ready for outside glaze.
• Liner glazes
• Liner Glazing a porcelain mug
• Liner glazing done right and wrong
• Lithium carbonate precipitation in one gallon of glaze
• Lithium China Stone analysis
• Lizella clay bars fired at stoneware temperatures
• Lizella clay powder
• LOI horse race with surprising winners
• LOI test of common materials flags copper carbonate
• Looking for a non-crazed non-cutlery marking cone 10R dolomite matte?
• Lord Ganesha made from Plainsman Clay
• Low expansion glazes craze less, but they can shiver
• Low expansion version of cone 6 Alberta Slip amber glaze glaze
• Low fire glaze with the Al2O3 and SiO2 of a cone 6 glaze
• Low fire heaven: Use commercial underglazes but make your own clear over glaze
• Low fire mug survives two-foot drop on to cement
• Low fire red and white stoneware getting closer
• Low fire red burning Zero3 engobe on white low fire stoneware
• Low fire red cones inhabit their own volatile world
• Low fire stoneware, Zero3 body, with clear glaze
• Low fire ware cracking during firing. Why?
• Luke Lindoe in 1971
• Lustreware pitcher by Jonathan Chiswell Jones
• M-4 Fireclay fired bars
• M2 vs. Redart
• M332 bowl by Louise Bouchard
• M332 bowl by Louise Bouchard
• M332 bowl by Louise Bouchard
• M332 hand-built bowl by Louise Bouchard
• M340 and its glaze made from materials mined in Canada
• M340 cone 6 bowls and casseroles made at Medalta Potteries
• M340 Transparent base glaze with Mason stains
• M370 cup by Dan Taylor - About 1995
• M390 Cone 6 red with added kyanite, grog
• M390 Horse
• M390 mug by Sarah Pike
• M390 mugs with Alberta Slip based glazes by Tony Hansen
• Made from Polar Ice by KyoungHwa Oh from Korea
• Mag carb causes crawling in higher amounts
• Magic of Fire book
• Magic tile assembles organically, never creating a pattern
• Magnesium carbonate vs. oxide: One big difference
• Maine Tourmaline
• Majolica glaze crawling on this slip-cast terra cotta
• Make a black engobe to fit your stoneware perfectly
• Make a custom refractory setter for heavy bowls, it will save them
• Make a useless Amazon mixer useful with a 3D printed propeller
• Make AMACO velvet underglazes work better at cone 04
• Make and sell your own jars of glaze at your teaching studio
• Make multiple cookie cutters for the best result
• Make pottery in Mexico. What should you take?
• Make your own ball mill rack - Front side
• Make your own molochite porcelain body
• Make your own pyrometric cones? Why not!
• Make your own vibrating sieve And process your own super-fine clays
• Making a bowl and plate glazing container
• Making a glaze testing cone: applying the slip for the join.
• Making a glaze testing cone: finishing the join.
• Making a glaze testing cone: Incising the surface
• Making a glaze testing cone: Stamping an identification.
• Making a mini bottle prototype mold
• Making a QRCode using porcelain pixels
• Making ceramic "stones that cry out"
• Making complex ceramic tile shapes by 3D printing your own cookie cutters
• Making my own home-made fired speckle for cone 6
• Making my own sandstone to match Karnak, Egypt
• Making Ravenscrag Floating Blue dance more at cone 8
• Making Tandoor Ovens - how is that possible without the clay cracking?
• Making the Stopper Holes on a Leather Hard Beer Bottle
• Making your own ceramic rutile
• Making your own crucibles to make your own speckle
• Making Your Own Heavy Duty v1 Kiln Posts The tools and supplies needed will enable other things too
• Making your own hexagonal shelves using calcined alumina
• Making your own plaster bats is easier than you might think
• Making your own Zero3 porcelain on a plaster table
• Malachite diagram
• Manganese dioxide powder (left) and manganese carbonate (right)
• Manganese speckle body with many different coloured glazes
• Manually programming a Bartlett V6-CF hobby kiln controller
• Marbled cone 6 clays with rutile blue glaze
• Marbling stained porcelains - Watch out for firing shrinkage differences
• Maroon and white mug before and after firing: What a difference!
• Mason stains in G2916F cone 6 clear base
• Mason stains in the G2926B base glaze at cone 6
• Mason stains in the G2934 matte base glaze at cone 6
• Mass-Wood stove project at Wooly Ewe yarn shop in Smithers, BC
• Match calculated COE to dilatometer-measured body COE? No!
• Match the firing shrinkage of an engobe to a terra cotta
• Matching the color of a natural clay using and iron oxide mix
• Matte base glaze cutlery marks. Add 10% glossy glaze. No marking.
• Matte cone 6 glazes have identical chemistry but one melts more. Why?
• Matte glazed porcelain mug
• Matte red glazed porcelain mug
• McNamee kaolin (left) vs. Pioneer Kaolin (right) at cone 6
• Measure specific gravity using a scale and measuring cup
• Measuring clay test bars done by Luke Lindoe 40 years ago
• Measuring shrinkage/absorption test bars in 1983 at Plainsman Clays
• Measuring the length of an EPK test bar to get its drying shrinkage
• Medalta Ball Pitcher
• Medalta Ball Pitcher Mold v10 Using 3D prints and plaster to make a hybrid
• Medalta small ball pitcher first 3D print of block mold
• Medium fire white bodies used at cone 04. Is that smart?
• Meet two glazes at the rim using wax emulsion. Why? How?
• Mel Noble at Plainsman Clay's Ravenscrag, Saskatchewan quarry
• Mel Noble at Ravenscrag, Sask. Quarry #3
• Melt flow comparison between Nepheline Syenite 270 and 400 mesh
• Melt flow test demonstrates glaze:clay interaction
• Melt flow test done by QC in sanitaryware plant
• Melt fluidity and coverage: RedArt Slip vs. Albany Slip vs. Alberta Slip
• Melt fluidity comparison - 1600F
• Melt fluidity comparison - 1750F
• Melt fluidity comparison of frits - 1350F
• Melt fluidity comparison of frits - 1400F
• Melt fluidity comparison of frits - 1450F
• Melt fluidity comparison of frits - 1500F
• Melt fluidity comparison of frits - 1550F
• Melt fluidity comparison of frits - 1650F
• Melt fluidity comparison of frits - 1700F
• Melt fluidity differences are not obvious by just comparing glazed ware
• Melt fluidity of Albany Slip vs. Alberta Slip at cone 10R
• Melt fluidity of Albany Slip vs. Arroyo Slip at cone 10R
• Melt fluidity tests as done by a frit manufacturer
• Melt fluidity: Cornwall Stone vs. Nepheline Syenite
• Melting glaze balls at various temperatures to see when all carbon has been expelled
• Melting range is mainly about boron content
• Messing up the firing of a copper red glaze
• Metal leaching from ceramic glazes: Lab report example and a better way
• Metal saturated glaze after lemon test
• Metallic black effect at cone 10R
• Metallic deep purple: Pure Alberta Slip at cone 10R, then refired at cone 6 oxidation
• Mexican terra cotta bisque tile is "complicted"
• MgO can destroy the rutile blue variegation effect
• Michael Cardew might be turning over in his grave!
• Micro bubbles in low fire glaze. Why?
• Micro photograph taken by an ordinary iPhone is still very useful
• Micro-fine Alumina powder on ebay.com The secret to amazing refractories
• Micrograph of phase separation in a glaze
• Milk as a glaze on terra cotta and buff burning low temperature bodies
• Milk as a glaze! How is that possible?
• Milk glazing done wrong
• Milk-as-a-glaze goes on more evenly by sponge
• Mineral Colloid BP, Gelwhite H, Veegum T in plastic form
• Mining the Battle Formation at Ravenscrag, Saskatchewan - June 2018
• Minspar 200 original container bag - front and back
• Mistake when liner glazing a mug
• Mix the slurry using a propeller mixer
• Mix the whole mass and fine-tune the stiffness
• Mixing and pouring plaster into a 3D printed shell mold
• Mocca mugs by Victor Duffhues
• Mocca mugs by Victor Duffhues
• Mod Podge clay sealer
• Mold (actually sprouting leaves) has grown on pugged clay
• Mold growing in a clay having added xantham gum
• Mold has appeared on the surface of an eight-month-old slug of potters clay
• Montana talc vs Texas talc - Powder fire at cone 6
• MOR apparatus
• More carbon needs to burn out than you might think!
• More copper can produce fewer bubbles!
• More problems measuring glaze specific gravity using a hydrometer
• Mortified to think of the amount of pinholing I once tolerated as normal
• Mosaic by Sikiu Perez
• Mosaic by Sikiu Perez
• Mosaic mural in Dan McCharles Park - made by Luke Lindoe in 1961
• Mosaics on the wall in the New York Subway
• Mother Nature's porcelain - From the Cretaceous period
• Mother Nature's porcelain and stoneware
• Mother Nature's Porcelain Mug
• Mother Nature's porcelain with no glaze
• Mother Nature's Porcelain: The lumps in the quarry
• Mother Nature's stoneware and glazes!
• Mother Natures's porcelain - Mug unglazed on the outside
• Mug by Giselle Peters
• Mug mold with pouring spout, handle mold with spare
• Mugs made from a sculpture clay? Yes!
• Mullite and anorthite porcelains: The microstructure was only understood recently
• Multi-Layering on a Large Bowl has Produced Crawling What does it take to make this work?
• Multilayer crawling
• Multiple kinds of glaze variegation
• Mural made using talc body and underglazes only
• My 106 based “Shimbo Green”
• My Breakup with Fusion 360 I had a "Little Dictator", now I have a "Partner"
• My clear glaze outside. Commercial white inside. But a big problem!
• My first 3D-printed handle case mold
• My first zircopax kiln shelf
• My head was in the clouds and I appreciate the grounding!
• My Initial CAD Drawing of the Mug This enabled printing a mock-up
• My monograms
• My new lab/studio is self-cleaning
• My potter's wheel with aluminum cup-head and jigger mold inserted
• My Sunshine Mugs!
• My workplace is loud and competitive My pottery wheel is quiet and keeps me humble
• N95 Particulate Respirator mask
• National Standard Bentonite fired to 1650F in a crucible
• Natural bentonites fire to a surprisingly dirty surface!
• Natural Minerals C-98 Talc bag
• Natural Talc C-98 Certificate of Analysis
• Never do ceramic body or glaze testing without code numbers
• New dealer showroom clay sample boards almost ready (not available retail)
• New Facebook group: CAD+3D = Molds for Ceramics
• New Feature in Celebration Posters
• New incentive to develop Canadian clays: Reduce the “clay miles”.
• New iron-red glaze on porcelain at cone 6 oxidation
• New macro-capable cameras on cell phones are great for close-ups
• New Record
• New Record
• New Zealand kaolin based slip casts at 1mm thickness. How?
• New Zealand Kaolin original container
• Newman Red clay fired test bars at a range of temperatures
• Newman Red clay powder
• Niko Leung finding and testing clays in Hong Kong
• Niko Leung uses "wild clays" from construction sites in Hong Kong
• No Crazing
• No crazing out of the kiln. But an ice-water test did this.
• Nomad 3D modelling and sculpture on iPad
• Non-plastic, very stiff clay is required here No potter could use it
• Non-vitreous bodies break very differently than vitreous ones
• Non-vitrified bodies are best in many situations
• None of these mugs will be successful. Why am I making them?
• Now that is a translucent porcelain! But much more.
• Nursery Plant Pot drawing
• Oatmeal glazed mugs
• Oatmeal slab built mugs
• Octal crystal glaze with three colorants
• Old Blend Feldspar. What is that?
• Old three-piece glaze flow tester mold
• Old-style hobby kilns with a sitter are usable if you become "the controller"!
• OM4 Ball clay fired from cone 10R (top), 10 down to 4 (downward)
• OMG email from pottery teacher on strike: Is this where our kids are at?
• On-Ramp to 3D-Printing Molds: Download and print something as a first step.
• One gram of processed hectorite has a surface area of 750 square meters!
• One reason why frits are such a good source of boron
• One reason why Gerstley Borate can make glaze difficult to use
• One reason why stoneware clays are more convenient
• One secret of crystal glazes is firing schedule
• One small pinhole in a terra cotta mug and we have a problem
• One use for a ball melt fluidity test
• One way for an ultra clear at low fire: Magnesia-alkali, low Si:Al ratio, more boron.
• One-speed slurry mixer motor label
• One-speed slurry mixer motor-shaft coupler close-up
• One-speed slurry mixer mounting clamp
• One-speed slurry mixer mounting mechanism
• One-speed slurry mixer propeller close-up
• One-speed slurry mixer switch close-up
• OnShape CAD is Free for Hobby Makers: Is it as good as Fusion 360?
• Orange matte glazed porcelain mug
• Orange-peel or pebbly glaze surface. Why?
• Organized testing of stains in a base recipe
• Orientation is important when 3D printing a mold
• Original Container Bag of Alumina Hydroxide
• Original Container Bag of Borax Decahydrate
• Original Container Bag of Boric Acid
• Original Container Bag of Calcined Alumina
• Original container bag of Custer Feldspar
• Original Container bag of Foundry Hill Cream clay
• Original container bag of Glomax calcined kaolin
• Original Container bag of Granular Ilmenite
• Original container bag of Mahavir Feldspar
• Original container bag of Redart
• Original container bag of Seaforth Mineral Strontium Carbonate
• Original Container Bag of Titanium Dioxide
• Original container bag of zinc oxide
• Original container of Albemarle Lithium Carbonate
• Original container of Barium Carbonate
• Original container of Rockwood Lithium Carbonate
• Original container of World Metal copper carbonate
• Original flow tester measurements
• Original glaze with Gerstley Borate vs. improved version with frit
• Orthoclase Feldspar Rock
• Orton Cone Chart for Potters (cone 020-12)
• Our base glazes plus opacifiers on a dark burning body at cone 6
• Our cone casting recipe is getting closer to working
• Our G2926B glaze may not work on dark burning clays
• Our G2934Y matte yellow vs. Amaco SM-63 yellow
• Our own black underglaze better accepts the clear overglaze
• Our rutile blue glaze survived a change in frit and rutile
• Outcrops of the Whitemud formation in the Eastend river valley - 2021
• Outdoor murals and freeze-thaw failure (spalling)
• Over deflocculated slip causes instability in toilet tank
• Over deflocculated vs. under deflocculated ceramic slurry
• Over-deflocculated ceramic slurry forms a skin
• Oversize particles in a typical manufactured porcelain body
• Oversize Particles Simple Test
• Oxidation fired speckled glaze!
• Oxide effects on frit physical properties
• P300 and M370 mugs with GA6A Alberta Slip (using Frit 3249)
• Paint another layer on a fired glaze? Yes. With CMC gum.
• Paper clay is easy to make. And really different!
• Partially and fully opacified cone 6 G1214Z1 matte glaze
• Particle size and LOI determine behaviour of over-fired bodies
• Particle size drastically affects drying performance
• PBX Fireclay fired test bars
• PC-20 floating blue with two alternatives you can make yourself
• Peel up and turn over sections when ready
• Perfect storm to create massive bubbling in a low fire kiln
• Perlite in a grogged sculpture body
• Permeability demonstration of Texas and Montana talcs
• Personal size sieve shakers you can buy on Amazon
• Pfefferkorn Plasticity Tester
• Phase diagram of a SiO2:Al2O3:CaO:KNaO System
• Phase separation close-up The power of modern phone cameras
• Physical properties for Plainsman A3
• Physical testing of two bentonites from one site: Comparative and absolute conclusions resulted.
• Picasso’s Transparent Glaze Micro-bubble free and crystal clear
• Pierre Aupilardjuk and John Kurok firing their work
• Pine Lake fireclay lab test bars
• Pinholes often happen on trimmed surfaces
• Pinholing at a cone 6 stoneware mug. Why?
• Pioneer Feldspar data sheet
• Place mugs with handles at the center and cover for drying
• Plainsman 3B fired bars
• Plainsman 3C Ball Clay fired bars
• Plainsman A1 ball clay fired test bars
• Plainsman A2 Ball Clay fired test bars
• Plainsman A3 Native Stoneware fired test bars
• Plainsman dark bodies with Alberta Slip floating blue
• Plainsman Fire-Red reduction fired vase
• Plainsman H435 with Ravenscrag Talc glaze matte inside, Ravenscrag Dolomite matte outside
• Plainsman M2 being delivered at the plant site in 2015
• Plainsman M332 vase with a wood ash glaze fired at cone 6.
• Plainsman M390 plus 12.5% Christie STKO 22S grog
• Plainsman P580, P600, H570 soda fired samples
• Plainsman Polar Ice, P300, M370 and M340 by Tony Hansen
• Plainsman PR#3D Stoneware fired bars
• Plainsman Ravenscrag Quarry in 2025: It is Getting Complicated
• Plainsman Ravenscrag, Saskatchewan quarry 2018
• Plainsman Red Fireclay (Fire-Red)
• Plainsman Warehouse 1 getting a new roof
• Plant pot casting mold and my aluminum jigger head
• Plaster bats are indispensable to the potter
• Plaster table frame
• Plaster table frame with cardboard liners around the outer edge
• Plaster table frame with plastic in place, ready to pour
• Plaster table poured and left to dry
• Plastic EPK slab ready for cutting into test bars
• Plasticity - A new player the 3D modelling space
• Plate by Luke Lindoe
• Plate by Stephanie Osser - Color highlighting by thickness variation
• Plucking in a cone 10R stoneware body having soluble salts
• Plucking on a vitreous porcelain at cone 6
• Polar Ice at cone 10 reduction. Stunning!
• Polar Ice casting translucency
• Polar Ice makes great eyeballs
• Polar Ice platter by Larry MacIntosh
• Polar Ice Platter underside by Larry MacIntosh
• Polar Ice Porcelain for 3D printing
• Polar Ice Porcelain with Body Stains - by Robert Barritz
• Polar Ice slip-cast mug owes its wonkiness to Veegum
• Polar Ice translucency vs. Chinese porcelain
• Polar Ice Translucent Mug by Kim Undseth
• Polar Ice translucent porcelain
• Polish the plaster surface, not the 3D-printed shell-mold
• Poor plaster release from 3D printed mug handle case molds
• Popular white engobe recipe that does not work at cone 6
• Porcelain pixel QRCode is scannable. Try it!
• Porcelain tile body composition pie chart
• Porosity sealer that does not create a shine on the surface
• Portable airbrush spray booth as a dust hood
• Possible to grind your own ceramic grade rutile?
• Potter goes full DIY and makes her own porcelain The best thing happens: Failure on the third mix!
• Potters can learn from how glazes are fit on ceramic tile
• Pottery made from cremation ash, increasingly popular!
• Pour Glazing a Large Terra Cotta Vase
• Pour spout for complex cast handle
• Pouring a temporary plaster mold for pressing softer clay
• Pouring the EPK powder into water first
• Pouring the slurry on a plaster table to dewater it
• Pouring the v4 Plaster Beer Bottle Mold
• Powder to slurry to dewatered to mugs with handles in 1 hour. How?
• Precipitated crystals from a glaze having 60% lead bisilicate frit
• Precision of a better 3D printer on thin walls
• Precrush and assess raw lump clay using a large wooden rolling pin
• Preparing a representative sample of dry material
• Preparing balls for a melt fluidity test using CMC gum
• Preparing balls for a melt fluidity test using Veegum
• Preparing clay test bars to measure plastic, dry and fired physical properties
• Preparing to make a glaze testing cone: cutting around the pattern
• Preventing plates from warping is more difficult than you think
• Printed mold halves taped, railed, ready to fill
• Printing a prototype propeller for my Lightnin lab mixer
• Printing my own version 1 block mold in two pieces
• Printing the mug model and casting it in plaster
• Problem at cone 1
• Program your firings manually, calibrate the final temperature using cones
• Protect your reputation as a clay body manufacturer. Unready Freddie is not monitoring incoming clays!
• Prusa Slicer keeps getting better
• Pugmill cleanup in preparation for making a porcelain
• Pugmills used in hobby and industry are very different
• Pure Alberta Slip at different thicknesses in reduction
• Pure Alberta Slip cone 10R with increasing amounts of iron
• Pure cobalt carbonate and copper carbonate at 1850F
• Pure feldspar applied as a glaze: Possible because of the magic of thixotropy.
• Pure nepheline syenite mug glazed and fired to cone 02
• Pushing kiln elements back into the groove
• Pushing the limits of an encapsulated stain
• Put almost-dry ware into a kiln. This happens!
• Pyrite - Fools Gold
• Pyrite - Peru
• QRCode mounted on Plainsman "Snow" tile
• Quartz inversion crack after refiring a very thick plate
• Quartz Rock Rose
• Quartz, Apophylite, Stilbite - India
• Quick fix to make these spareless molds more usable
• Quickly measure specific gravity using a scale and graduated cylinder
• Rainbow colored porcelain bowl by Robert Barritz
• Randy's Red cone 6 iron red glaze
• Ravencrag Slip vs Alberta Slip floating blues at cone 6 oxidation
• Ravenscarg Cone 6 base ball milled
• Ravenscrag Alberta Slip Celadon mug by Tony Hansen
• Ravenscrag based silky MgO matte at cone 6
• Ravenscrag Black on Plainsman M340
• Ravenscrag Cone 10R Sample Board from Plainsman Clays
• Ravenscrag cone 6 black
• Ravenscrag Cone 6 Floating Blue on porcelain and a red stoneware
• Ravenscrag cone 6 floating blue thinner and thicker applications
• Ravenscrag Cone 6 Glazes Sampleboard
• Ravenscrag Cone 6 GR6-H Oatmeal over 5x20 cone 6 black
• Ravenscrag Cone 6 Raspberry glaze on light and dark burning bodies
• Ravenscrag Cone 6 silky matte does not work well on dark burning bodies
• Ravenscrag Cone 6 white glaze with 10% Mason chrome tin stain
• Ravenscrag floating blue color affected by cooling rate
• Ravenscrag Floating Blue on Polar Ice and M370 at Cone 6
• Ravenscrag Floating Blue rotating mug
• Ravenscrag GR10-E celadon glaze
• Ravenscrag GR10-J Cone 10R Bamboo glaze variation
• Ravenscrag GR6-A glaze with Frit 3134 and Fusion F-12
• Ravenscrag High Calcia Matte
• Ravenscrag low fire clear over colored slips
• Ravenscrag oatmeal layered over black at cone 6
• Ravenscrag Plum Red recalculated to use frit instead of ulexite
• Ravenscrag Raspberry on porcelain
• Ravenscrag Saskatchewan clays fired at cone 10R
• Ravenscrag Slip + 10% talc = fantastic cone 10R silky matte glaze
• Ravenscrag Slip at cone 5R and 10R
• Ravenscrag Slip based dolomite matte
• Ravenscrag Slip can make an interesting variegated ivory at cone 10
• Ravenscrag slip cone 6 celadon on a New Zealand kaolin porcelain
• Ravenscrag Slip GR6-A and Alberta Slip GA6-A glazes on M340 at cone 5 reduction.
• Ravenscrag Slip mugs
• Ravenscrag Slip pure: Oxidation vs. Reduction
• Ravenscrag Slip transparent and Alberta Slip blue glazes by Tony Hansen
• Ravenscrag Tenmoku vs. Alberta Slip Tenmoku
• Ravenscrag Tenmoku vs. Alberta Slip Tenmoku on porcelain
• Ravenscrag white on Plainsman M340
• RavenTalc silky matte on the outside of a cone 10R buff stoneware mug
• Raw and calcined zinc oxides in a crystalline glaze
• Raw clay delivery in a live bottom trailer
• Raw diatomaceous earth. Is it a clay?
• Raw iron bearing clays can be volatile in firing
• Raw Material Preparation and Forming of Ceramic Tiles - book
• Raw red burning clay stockpile
• Raw Umber original container with occupational health advisories
• Raw Umber vs. Burnt Umber
• Razor-sharp flakes of shivering glaze are flying off this piece
• Ready to pour a block mold
• Really bright and vibrant colors that are also safe
• Rear of #6 Tile kaolin original container bag
• Rear of M-23 Ball Clay original container bag
• Rear of National Standard 325 bentonite original container bag
• Rear of Sil-co-sil Silica original container bag
• Rear of soda and salt kilns at the Medalta International Artists in Residence
• Reason 1 for record keeping in an insight-live.com account
• Reason 2 for record keeping in an insight-live.com account
• Reason 3 for record keeping in an insight-live.com account
• Recognize these universal oxidation glazes? Almost every potter needs a Albany brown and rutile blue.
• Recovering the +200 mesh material on the finest sieve
• Red burning clays bubble glazes more
• Red burning, customer-found terra cotta clays charachterized
• Red stain in matte and glossy bases. Which looks best?
• Redart (left) vs. Lizella clay. Definitely not substitutes for each other.
• Redart fired bars vs. Plainsman Blue Grey Plastic
• Redart-as-a-glaze wood-fired on Laguna B-Mix
• Reduction and oxidation color difference in a cone 10 red fireclay
• Reduction and oxidation porcelains
• Reduction fired mugs with simple base glazes
• Reduction glaze gone astray returns to color in an oxidation refire
• Reduction high temperature iron crystal glaze
• Reduction iron speckle
• Reduction Polar Ice vs. Oxidation Polar Ice
• Reduction speckle: a product of iron particles in the body
• Refined 200 mesh materials are not guaranteed to be such
• Refiring a cone 6 stoneware mug ruins the glassy surface with blisters
• Refiring a terra cotta mug that had already bubbled only made blistering worse
• Refiring the cone 04 glaze has reduced its color depth
• Reformulating a glaze to source lithe from a Frit had an added benefit
• Regular bottles of beer looking humble beside the ceramic one
• Replace Custer Feldspar in a cone 10R glaze recipe in 2 minutes
• Restone, a Plainsman medium temperature red burning raw material
• Resurface your plaster table and make it like new!
• Resurrecting and old kiln by replacing elements
• Retro glaze chemistry calculation - 1980
• Rich, natural but vibrant colors. How was this cone 6 mug made?
• Ridiculously plastic porcelain! How?
• Roast or calcine your Ravenscrag Slip (or other clays) for much better results
• Roasting Alberta and Ravenscrag Slips at 1000F: Essential for good glazes
• Rocks fired at cone 02 with underglazes
• Routine SHAB testing creates valuable historical drying and firing data
• Royal Tierra Potteries
• Rutilated quartz
• Rutile blue cone 6 glaze: Fast vs slow cool firing
• Rutile blue glaze effect completely lost! A temporary solution.
• Rutile blue glazes: Love the look, hate the trouble to make it
• Rutile blue reactive glazes often do not refire well
• Rutile Blues - Almost every single stoneware potter uses them These are made from Canadian materials and recipes
• Sacmi DHD Inkjet printer for tile
• Saint Rose Red being delivered. Look what it does at cone 10R!
• Salt fired P700 by Jim Etzkorn
• Salt fired P700 by Jim Etzkorn
• Salt glaze beehive kiln beside the Plainsman Clays plant
• Salt glazed pieces often craze
• Same body, glaze, thickness and temperature. Why did the front one foam up?
• Same body, glaze, thickness, firing. Same thermal shock. Only the tile crazed?
• Same body, same glaze, same firing. Why did one crawl?
• Same clay disk dried fast (heat gun) and slower (fan) for the DFAC test
• Same clay, same glaze, both drop-and-hold fired to cone 6. Why different?
• Same cone 6 glazes. Same clay. Why is the one on the right pinholing?
• Same glaze fires hyper-matte and very glossy at cone 10. How?
• Same glaze, same firing - titanium accounts for the difference
• Same glaze, same kiln, same clay: The right one crystallized. Why?
• Same glaze, same M340 clay, same firing. Why is one more speckled?
• Same glaze/body. One fired flawless, the other dimpled, pinholes. Why?
• Same iron red glaze on black stoneware and on porcelain
• Same photo on my Nikon D-3500 and iPhone 8
• Same red burning clay with two different transparent glazes
• Sample chart from XRF machine
• Sanding the surface of a plaster table to keep it absorbent
• Sanitaryware dunting on DeepSeek
• Sanitaryware tunnel kiln control panel
• Sanity checking a cone 6 purple pottery glaze
• Scattered crystals on a highly melt fluid zinc free glaze
• Screened to 80 mesh and feels absolutely smooth, but still speckles in reduction
• Sculptural piece by Luke Lindoe
• Sculptural piece by Luke Lindoe
• Sculptural piece by Luke Lindoe
• Sculptural piece by Luke Lindoe
• Sculptural piece by Luke Lindoe
• Sculptural piece by Luke Lindoe
• Sculpture by Brian MacArthur
• Sculpture by Giselle Peters
• Sculpture by Luke Lindoe
• Sculpture by Stephanie Osser
• Sculpture Clay in functional ware? Yes!
• Sealing clay using "Liquid Quartz"
• Sedimentary clays are a whos-who of the periodic table
• See the magic of thixotropy as I mix a 20kg batch of G2926B glaze
• Selenite - Peru
• Self-sustainability and doing what you love could be making a comeback
• Serious cracking in a crystalline-glazed P700 Grolleg porcelain. Why?
• Serious pinholing in pottery glaze: Slow-cool the firing or get a different body.
• Setting up a Clay Testing Program
• Severe cutlery marking in a glaze lacking sufficient Al2O3
• Severe fired warping when a low temperature clay goes to cone 6
• Shimpo Jigger attachment drawing
• Shino bowl made by Joshua Miller
• Shivering on terra cotta is a red light not to ignore
• Should I glaze the outside of this mug now? No!
• Should you expect to vitrify terra cotta?
• Should you throw out the brown water on top of settled glazes?
• Shrinking glaze = peeling glaze
• SIAL 10F and 25F with G3879 clear glaze at cone 04
• Side Rails For v1 Working Mug Mold
• Silica plus modifiers matrix
• Silicon carbide glazes
• Silicone sealer for porous ceramic for outdoor use
• Silicone sealers prevent water absorbing in porous ceramic
• Silk screen mediums
• Silk screening using a professionally-made screen
• Silverline Talc bags are now labelled Imerys Talc
• Simple dilatometric curve produced by a dilatometer
• Simple example of color-variation-by-thickness in a honey glaze
• Simplified v2 AI-Inspired Mug Using OnShape As good or better than previous Fusion 360 efforts
• Single fire glazing done wrong
• Six layers, 85% Alberta Slip in the glaze, yet no cracking. How? CMC gum.
• Sixteen kinds of clay. No mugs have cracked in drying. Why?
• Skagit Fireclay PSD test
• Skatgit Fireclay test bars
• SLA printing super thin mold walls Enables ignoring that as a fit factor
• Slab plate by Luke Lindoe
• Slab vase by by Luke Lindoe
• Slab vessel by Luke Lindoe
• Slab vessel by Luke Lindoe
• Slab-built porcelain mug with matte glaze - rotating
• Slab-built ware that children can make
• Slaking. What is that?
• Slip cast calciner after pour out
• Slip cast leather-hard full-sized beer bottle prototype
• Slip having proper rheology is so much better
• Slipcast crucibles can be made from small to large sizes
• Slotted natches make this bottle mold possible
• Slotted side rails enable better mold making
• Slow cooling vs. fast cooling on a cone 6 transparent glaze
• Slurrying EPK to prepare for dewatering
• Small bowl by Luke Lindoe
• Small incised Plainsman H443 bowl
• Smash Pots to Make Better Ones! Learn their dirty little secrets.
• Snakeskin glazes are induced to crawl by this additive
• Soda and salt kilns at the Medalta International Artists in Residence
• Soda fired P600 by Jim Etzkorn
• Soda fired P600 by Jim Etzkorn
• Soda fired porcelain vessel by Heather Lepp
• Soluble ingredients in glazes always precipitate as angular crystals. Right?
• Soluble salts as a white powder on a commercial bentonite
• Soluble salts on a porcelain mug are causing plucking
• Soluble salts on a range of different cone 6 fired clay brown/tan bodies
• Soluble salts on cone 04 terra cotta clay bodies
• Soluble salts on sculptural piece
• Soluble salts on six different common North American ball clays
• Solving a difficult engobe flaking problem
• Solving a pinholes problem with a boron fluxed cone 04 opacified and stained glaze
• Some bodies cannot be fired to even near zero porosity
• Somehow the Gerstley Borate 50:30:20 glaze worked. But does it work using Gillespie Borate?
• Something gross is growing in this jar of prepared glaze
• Sometimes it is better to replace the base in a production glaze recipe
• Sourcing Li2O from spodumene instead of lithium carbonate comes at a cost
• Sparkles on clay. Is that possible?
• Specific gravities on three commercial glazes might surprise you
• Specification for a Tapper Clay lacks physics
• Spodumene can bubble when mixed with water.
• Spodumene glaze with natural ironstone concretion speckle
• Spodumene ore
• Spodumene ore: Typically refiners want 6% or more LiO2 content.
• Sponging and fired specks
• Sponging and glaze defects
• Spray glazed large bowl with two glazes meeting-at-the-rim
• Spray glazing a nitch shelf at shower-shelf.com
• Stage 1 of engobing a cone 6 red stoneware mug
• Stain-based black engobe is clean to use!
• Stained casting slip
• Stained engobes can be applied thinly yet fire opaque
• Stained Plainsman Polar Ice Porcelain - With Polishing (no glaze)
• Stained polar ice porcelain marbling compatibility test
• Staining of a sanitaryware glaze after years of use
• Stains added to a base glaze can change its melt fluidity. Adjust the base.
• Stains are better in black glazes Use 5% stain instead of 15% metal oxides
• Stains having varying fluxing effects on a host glaze
• Stains that work better in some glazes and not others
• Stamp used for stamping information onto clay test bars
• Standard 3/8 inch Self-Interlocking Mold Natch We can 3D print these and improve them
• Step 1 testing a "wild clay": First impressions
• Step 10: A PSD test using 40, 50, 70 and 100 mesh sieves
• Step 11: 40, 50, 70, 100 mesh oversize particles (clockwise)
• Step 12: First fired bars at cone 4, 04 and the data I have entered for them
• Step 13: Trying some commercial transparent glazes for fit-test
• Step 14: Closeup of glazed shard cross section
• Step 15: The drying performance disk shows no soluble salts
• Step 16: The fired bars have all been processed
• Step 17: Revisiting the test bars - The data
• Step 18: Compare data, this and a typical terra cotta
• Step 1: Dry out a slurry sample
• Step 2: Put the dried lumps in to hot water
• Step 3: Note floating organics, feel the consistency, take out any larger rocks
• Step 4: Pour it through a 30 mesh screen
• Step 5: Allow the clay to settle in the bucket overnight
• Step 6: Pouring the slurry on a plaster table for dewatering
• Step 7: Making test bars and using it on the potter's wheel
• Step 8: Measuring the clay test bars after drying
• Step 9: Slaking and washing 50 grams through a 100 mesh screen
• Step-by-step how to test and evaluate a new native clay
• Step-by-step to do a formula-to-batch in Insight-Live.com
• Sterile white vs. pure Ravenscrag Slip as a liner glaze at cone 10R
• Stilts not always needed when firing artware pieces with glazed bottoms
• STKO grog original container bags
• Stockpile of crude feldspar from MGK Minerals (India) deposit
• Stoneware from your terra cotta body? It is very possible.
• Stoneware mug endures thermal shock better than kaolin or ball clay
• Stonewares dry better than porcelains
• Stonewares often dry alot better than porcelains
• Stop a runny glaze with another glaze!
• Strange drying crack on a porcelain mug
• Stroke & Coat colors
• Strontium carbonate self destructing
• Stuck at home with no ceramic supplies? Time to organize!
• Studio pugmills have come a long way
• Stull chart showing the SiO2-Al2O3-(0.7CaO+0.3KNaO) system
• Stunning black silky matte glaze at cone 6
• Substitute Ferro Frit 3134, using glaze chemistry, in three glaze types
• Substituting a frit to source B2O3 leads to a dead end
• Substituting alumina in a clay body dramatically lowered thermal expansion
• Substituting MgO for BaO in a matte will also make a matte, right? Wrong.
• Success: My homemade cone 6 is bending the same as the Orton
• Successfully guiding large bowls through drying and firing is not easy
• Super kiln wash that can be applied with a paint roller
• Super vitreous body glosses a normally matte glaze
• Supercharge the plasticity of reclaimed clay using bentonite
• Surface tension differences between two glazes
• Surface treatment affects glaze speck development in jiggered stoneware
• Surface wrinkling of G1214Z cone 6 ceramic glaze
• Suspending pure feldspar and applying it as a glaze
• Swing Top Stopper Mechanism: Getting the measurement right
• Switching copper carbonate for copper oxide in a fluid glaze
• Talc leaves a film on this stainless steel scoop
• Talc powder is floating on top of the water and will do so for some time
• Talc was making this glaze "puffy" - here is how I fixed it.
• Talc:Ball Clay bodies have incredible casting properties
• Teapot by Kathy Ransom
• Temporary Raku Kiln
• Tenmoku mugs
• Tenmokus made from Alberta Slip and Ravenscrag Slip
• Terra cotta and a surprising thing about thermal shock
• Terra Cotta brown sugar savers on Amazon - you can do better
• Terra cotta clays are not created equal
• Terra cotta gets brittle when over fired
• Terra Cotta Irrigation Spike
• Terra Cotta mugs after under-glazing and incising
• Terra cotta tile mural from India
• Terra cotta transparent glaze: Too thick and just right
• Terra cotta vs. low fire red stoneware
• Terra Sigilatta surface on a dolomite white earthenware
• Terra Sigillata by Monika Smith 2016
• Test bar made from 20% bentonite and 80% calcium carbonate
• Test bars from recent kiln firings Here is how to enter the data into Insight-live
• Test bars of different terra cotta clays fired at different temperatures
• Testing a new brand of dolomite
• Testing a new brand of lithium carbonate
• Testing cobalt carbonate from a new supplier
• Testing the water content of a ceramic glaze
• Testing two brands of tin oxide in a melt flow tester
• Testing your own native clays is easier than you think
• Texas talc (left) and Montana talc (right)
• Texas talc fires much whiter in low fire bodies
• Texture of a typical raku body after throwing
• TGA-DTA Sample curve for Copper Carbonate
• The 3D model of a new melt flow tester mold
• The 3D printed hinge demonstrates the capability of a consumer printer
• The action of Zircopax vs Tin Oxide at cone 10R
• The amazing color change from 500F to room temperature in terra cotta
• The amazing fluxing power of boron (in borax)
• The amazing power of 1% talc: It accelerates the vitrification of this stoneware
• The amount of encapsulated stain needed for intense color
• The appearance of this commercial glaze varies with cooling rate
• The back on my first tile
• The ball clay you use to suspend your glaze is important!
• The bamboo matte on the left is better: It does not stain and does not craze.
• The bending of an Orton standard cone 10
• The best firing temperature for this middle range body?
• The best way to make black clay: Don't. Use an engobe.
• The best way to opacify a low-temperature terra cotta glaze
• The blue color in this porcelain develops more as maturity increases
• The bottle is more important than the beer!
• The bottle on the right was cast from over-deflocculated slip
• The browse window in DOS Foresight
• The casting slip did not drain well when pouring this mug
• The classic cone 6 floating blue? No, it is Alberta Slip blue.
• The clay aging myth: Prove it wrong by slurry mixing
• The color? Good. The liner glaze? Safer. The crazing? Weakens the piece.
• The Complete Guide to Mid-Range Glazes
• The controller board on a common RepRap 3D printer
• The controller on a common 3D printer
• The covering power and opacity of an encapsulated stain
• The covering power of an engobe is amazing. If they are not over-fluxed.
• The data sheet of a frit having a proprietary chemistry
• The de-airing process improves the smoothness of the fired surface
• The degree-of-matteness of this cone 6 glaze is adjustable
• The difference between a slip and an engobe
• The difference between dolomite and calcium carbonate in a glaze
• The difference between Silica 90 and Silica 45 will affect the glaze melt
• The difference between these low fire transparents: Gerstley Borate vs. Ulexite
• The difference between vitrified and sintered
• The difference in fired character between kaolin and ball clay at cone 10R
• The difference lighting can make in photos
• The difference propeller-mixing makes in a titanium glaze
• The difference that caused blistering: Firing schedule!
• The difficulty of vitrifying ware in electric kilns
• The Digitalfire glaze calculation worksheet for Excel
• The Dragon
• The effect a cone 10R iron stoneware imposes on G2571A matte glaze
• The effect of body soluble salts an a clear ceramic glaze
• The engobe on this stainless steel spoon has not cracked in drying or firing. How?
• The EPK slurry was dried enough for removal from the plaster bat
• The fact that it applied like this was not worth mentioning?
• The fantastic throwing of Plainsman Polar Ice
• The fired color difference between Nepheline Syenite and Custer Feldspar
• The first of 15 "Fool-Proof Recipes" wrecked my kiln shelf!
• The Floating blues we should have manufactured The closest we got was labels
• The fluxing power of Veegum with pure Nepheline Syenite
• The foot ring on the left is plucking, the right one is not. Why?
• The formula viewpoint for ceramic glazes
• The G2934 glaze does not work well on dark-burning bodies
• The glaze broke the bottom off the pot!
• The glaze cost on this mug is three times the cost of the clay!
• The Glaze Dragon
• The Glaze Dragon
• The glaze dragon!
• The glaze firing reveals that the specific gravity of this V-303 terra cotta under glaze is too low
• The glaze with less stain + 2% Zircopax is brighter than the one with more stain!
• The glossiest slipperiest glaze ever at middle temperature
• The green underglaze is failing on impact
• The handle is strong, the mug is weak. Learn why.
• The Heartbeat of the Kiln: The Indispensable Plant Technician
• The high porosity of this clay enables sealing against water leakage
• The importance of 3D printing the right way up
• The importance of profile in reduction of printed support
• The incredible plasticity of bentonite. It is the secret to win the ThrowDown!
• The initial drawing of the calciner/roaster
• The Iron-Red mechanism is working in one fluid melt base but not the other
• The magic of a small barium carbonate addition to a clay body
• The Magic of Rutile Glazes!
• The main recipe window in Digitalfire Insight software
• The material area in DOS Foresight
• The matte version covers better, looks better
• The matteness of this glaze depends on the cooling rate
• The mechanism of Cd, Se stain inclusion
• The melt fluidity of a crystalline glaze
• The most plastic kaolin in North America. Likely the world.
• The movable printing bed on a common 3D RepRap printer
• The New 2020 Digitalfire Reference Library is Here
• The new L213 at cone 06 and cone 6
• The original container of a bag of Yellow Ochre
• The outside glaze has a fining agent that clears the bubble clouds
• The Oxides area in DOS Foresight
• The penetrating power of granular manganese specks
• The perfect storm of high surface tension and high LOI: Blisters.
• The perfect storm to create boron-blue clouding at low fire
• The plaster calciner/roaster vessel mold
• The plaster-filled block mold negatve
• The porcelain is harder, but the terra cotta has it beat for thermal shock!
• The powder blender for making porcelain bodies at Plainsman Clays
• The power of a black engobe
• The power of calcined alumina to matte a magnesia glaze
• The premium plasticizer has a premium price. Brace yourself.
• The printhead of a make-it-yourself RepRap 3D printer
• The Prusa MK4 3D printer is worth the upgrade from MK3
• The Prusa Slicer generates G-Code for 3D-printing
• The quality of frits is declining
• The rear of a partially assembled RepRap 3D printer
• The Recipe area in DOS Foresight - About 1990
• The recipe mixing area in the Plainsman Clays lab
• The recipe reveals why a pottery glaze is peeling when multi-layered
• The reflection of light on a matte glaze
• The right transparent glaze makes this underglaze design shine!
• The rutile mechanism in glazes
• The same bamboo glaze on light and dark bodies at cone 10R!
• The same clay fired in oxidation and reduction
• The same clay fired in oxidation and reduction
• The same clay fired in reduction and oxidation at cone 10
• The same clay in lump and powder form. Which is heavier?
• The same clays and firing, but one tiny difference
• The same copper red glaze on the inside and outside of a vase
• The same engobe. Same water content. What is the difference?
• The same glaze fired at 1850F and 2200F
• The same glaze fires very differently depending on kiln cooling rate
• The same glaze in reduction (left) and oxidation at cone 10
• The same glaze on a buff-burning stoneware and a white porcelain
• The same liner glaze crazes on the porcelain but not the stoneware
• The same oatmeal glaze on the same body at cone 5 and 6 oxidation
• The same raw material, same temperature, different batches!
• The same Tenmoku on a buff stoneware and a Grolleg porcelain
• The secret of the higher gloss glaze on the right? A lead frit addition.
• The secret of this cone 6 translucency will surprise you!
• The shapes of some pottery make them prone to fired warping
• The silica pants of this cone 10R mug have fallen down!
• The stockpile of St. Rose Red fireclay at the Plainsman plant
• The strange vitrification profile of a talc body
• The sun. Brought to you by Plainsman Polar Ice!
• The supply oxide dialog in INSIGHT
• The surprising results of titanium/talc additions to Ravenscrag slip at cone 10R
• The talc body looked white until I put it beside a cone 04 porcelain
• The Test Results area in DOS Foresight
• The texture of 33% 20-48 mesh grog in a flameware body
• The the glaze laydown is not even, it could affect the fired surface
• The titanium/stain mechanism at cone 10R
• The top pile of clay can make one million coffee mugs. The bottom one can glaze ten million!
• The traffic in glaze recipes may burn your success!
• The translucency of Polar Ice porcelain
• The ultimate example of delayed crazing: 90 years! Glaze chemistry is the key to understanding it
• The umber is bubbling the underglaze in these clay rocks
• The underside of three state-of-the-art potters wheels in 2016
• The unexpected reason for this crazing can be seen in the chemistry
• The uranium oxide crystalline glazes of William Melmstrom
• The v2 ball pitcher is way too big to 3D print. What now?
• The value of a white vitreous engobe over terra cotta at cone 03
• The varying power of different encapsulated stains
• The whiteness of Dragonite Halloysite
• The wooden master model of a powder calciner
• The world's largest T.Rex walked on our pottery clay!
• There are so many things a melt flow tester can tell you
• There is a morality to making functional vessels used by others
• There is a secret to the clarity of this terra cotta glaze
• There’s DIY magic in the ground beneath your feet!
• Thermal shock failure in raw ball clay much worse than the 100 mesh material
• Thermal shocking kaolin, ball clay, halloysite and porcelain
• These are behind the art center. A dirty secret. Or an opportunity!
• These common Ferro frits have distinct uses in traditional ceramics
• These mugs are in the leather-hard stage
• These pieces reveal four benefits of making your own low fire glazes
• These positions provide a clue to the kinds of things potters need to know
• These pots are not real. How is that possible?
• These Saskatchewan grasslands lie almost right on top of pure clay!
• These Stoneware Potters Do Something Unusual: They make certain pieces using the low fire process
• These two frits have one difference in the chemistry: Al2O3.
• These two pieces will not mature to the same degree in a firing
• Thick application clouds a transparent glaze on a terra cotta clay
• Thickly applied slips must fit the body and each other
• Thin titanium band sprayed over cone 6 glazes demonstrates crystallization
• Things too big to 3D print can be done in pieces
• Think the idea of mixing your own glazes is dead? Nope!
• This always worked before. Why cracking now?
• This amazing difference 45 micron silica can make
• This appears to be a drying crack, but it is not
• This clay is called Redart for a good reason
• This cone 04 white body contains no talc. And there is no crazing!
• This cone 6 black glaze looks glossy until placed beside the cone 04 one
• This Cone 6 Porcelain Casts Super-Fast The type of kaolin and ball clay is the secret
• This cone 6 pottery clay is not suitable at cone 5? Why?
• This crack is "spring loaded" out of the kiln. Why?
• This crack likely starting during bisque
• This crystalline glaze has zero clay yet brushes well. Here is why.
• This drawing of a beer bottle demonstrates parametrics
• This electric kiln thermocouple needs replacement
• This feldspar melts by itself to be a glaze, but crazes badly
• This flow tester indicates copper is not fluxing or bubbling this glaze
• This GA6-B glaze is better than beer bottle glass
• This glaze can dry on metal without cracking, even though it is thick!
• This glaze is not working with Gillespie Borate. What to do?
• This high-colemanite underglaze has decrepitated, ruining the overglaze
• This horizontal crack began as stresses created during uneven drying
• This impossible AI porcelain mug suggests it is actually learning
• This iron oxide stain on porcelain disappeared during firing?
• This is crazing. On functional ware. Not good.
• This is how bad Gerstley Borate glazes can blister
• This is how much casting slip 10,000 grams of powder makes
• This is how much iron is in 50lb of the cleanest plastic porcelain you can make!
• This is how much iron particulate bar magnets can pull from a clay conveyor
• This is how New Zealand kaolin powder agglomerates
• This is what a semi-trailer load (40,000 lbs) of talc looks like
• This is what happens when a kiln is bisque fired too fast
• This is what happens when applying a non-gummed engobe or underglaze to bisque ware
• This is what is possible with terra cotta!
• This is what labs use to measure particle size
• This is what Zero4 porcelain does when I smash a piece with a hammer
• This is when you should program a firing yourself
• This mug store is an encyclopedia on how to make each piece
• This on only 2/3 of the M340 we have in stock!
• This piece is thrown from calcined kaolin. Almost.
• This pitcher is oozing a black goo after water sat in it overnight
• This pottery glaze is not flaking off - the underglaze is.
• This serious glaze crawling problem was solved with a simple addition
• This simple device continuously gauges clay stiffness
• This super-vitrified clay bodies does this when fired
• This terra cotta clay melts and expands by cone 6
• This titanium blue fails when we switch frits
• This translucent porcelain and terra cotta share something amazing
• This underglaze is too thin to cover well. I fixed it in under a minute.
• This underglaze red is not working at all. Why?
• Three cone 10R mugs that have the same liner glaze.
• Three gifts have just fallen into our lap Reflecting on the raw material path ahead
• Three low fire bodies need three different clear glazes. Why?
• Three squares of toilet paper the secret to drying a mug in an hour
• Three visual glaze mechanisms make this piece unique
• Throw pieces on the potter's wheel
• Throw Zircopax on the potters wheel. Just add VeeGum.
• Throwing a clay body is an invaluable physical test But pieces need to be code numbered for tracking
• Throwing a Polar Ice mug on the potter's wheel
• Throwing a pot on a potters wheel
• Throwing off the hump
• Thrown pieces made from pure Grolleg and EP kaolins This is how you compare plasticities
• Tile having angular shape is cracking at vertexes
• Tile stacking in an electric kiln - Fingers crossed!
• Tile that is "actually HANDMADE"
• Time to repurpose that 3D printer for ceramics
• Timeline to make a cone 6 red porcealin test
• Tin Foil crystal glaze
• Tin oxide can stop the rutile variegation effect dead in its tracks!
• Tin oxide stops crystallization in GA6-A Alberta Slip base glaze
• Tintometric mixing system
• Tiny barium addition to a buff stoneware transforms it
• Tiny iron silicate crystals often grow in tenmoku glazes
• Tipping-Point Glazes are Good. And Bad.
• Titanium as an opacifier
• Titanium Dioxide in a cone 6 calcia matte glaze
• Titanium instead of rutile for floating blue
• To gauge strength: Break pieces often. Pay attention to what happens.
• Tobla Howell throwing Plainsman raku clay.
• Toilet bowl glaze vs. variegated glaze
• Tommy Turnback Ignored AI By not adapting he wrote his own layoff notice
• Tony Hansen applying a handle to a porcelain mug
• Tony Hansen monograms on mugs
• Top influencers are doing slip casting
• TPU vs PLA Filament for Mold Making
• Transform the yellow-white of cone 6 to blue-white of cone 10R
• Translucency of Polar Ice compared to another porcelain at cone 6
• Translucent Porcelain Lithophane by Stephanie Osser
• Transparent and RavenTalc silky matte glazes on black engobe at cone 10R
• Transparent glaze quality on terra cotta is about multiple things
• Transparent glaze thickness really matters over this Amaco velvet underglaze
• Transparent glazes are very important to me
• Transparent glazes often work poorly on dark stoneware bodies
• Transparent inner glaze over an encapsulated stained engobe
• Transparent over-glaze for cone 6 stoneware Is a good one even possible on brush decorated ware?
• Tricalcium Phosphate original container
• Tried and True recipes. Really?
• Trying to avoid knowing anything about glaze chemistry? Be ready for drama!
• Tune your glaze to the degree of matteness you want
• Tuning the degree of gloss in a colored matte glaze
• Tuning the degree of gloss on a matte black glaze
• Turbo-charge plasticity using bentonite, hectorite, smectite.
• Turning a cruise into a "Potters Celebration Trip"
• Turning delayed crazing into immediate crazing
• Twenty six bodies. Porcelains and native. Which do I like best?
• Two bars ready for pyro-plastic comparison test
• Two base clear glazes with 2% copper: One is bubbling and one is not.
• Two batches of EP Kaolin tested quite differently in 2018
• Two bentonites that should not look this similar
• Two black cone 6 glazes recipes. One leaches metals. Why?
• Two block molds are ready for casting working molds
• Two ChatBots square off on crazing in 2025
• Two cone 6 black glaze recipes I control and adjust A gloss and a matte based on two reliable base recipes
• Two cone 6 matte glazes opacified with 10% Zircopax
• Two cone 6 oatmeal-brown adjustable glaze recipes Adjust matteness, working properties, crawling resistance
• Two Cornwall Stone shipments compared to two substitutes
• Two different shipments of a cobalt free black stain. Why different colors?
• Two frits with Custer Feldspar
• Two G2571A Bamboo versions: With iron, rutile-zircopax
• Two glazes. One crawls, the other does not. Why?
• Two handle mold styles: With and without a spare
• Two kaolins, one cracks on bisque, the other does not
• Two low fire transparent highly fritted glaze recipes for pottery
• Two matte mechanisms: One crazes, the other does not
• Two methods to make your own low SG brushing glaze.
• Two plasticizers show vastly different potency
• Two reasons why porcelain recipes need silica
• Two shipments of raw umber - particles over 170 mesh
• Two stains. 4 colors. Will the guilty oxide please step forward.
• Two standalone electric wall-mount kiln controllers. But they are very different.
• Two transparents having opposite melt fluidity/surface tension balances
• Type of components needed to develop a kiln monitoring device
• UK Slipware: A Tradition of Terra Cotta and Lead Glaze No borosilicate glaze can do this
• Ulexite rocks for sale on eBay
• Ultrox 500W original container bags
• Ultrox Original Container Bag
• Underfiring a clay is OK if the glaze fits? No it is not.
• Underglaze color mayhem at cone 5!
• Underglaze decoration at low, medium and high temperature reduction
• Underglaze decoration difficult to cover with clear overglaze
• Underglazes are more opaque than glazes of the same color
• Underglazes at low fire are brighter than at medium temperature
• Underglazes can be incompatible with the clear overglaze
• Underglazes require a fluid melt transparent But extra melt fluidity comes at a cost
• Underglazes, engobe, a good transparent glaze and cone 03. Life is good!
• Underside of car for Lindoe gas kiln
• Underside of plaster table frame with cardboard retainers in place
• Unidentified developer issue when intalling Insight for OSX
• Unidentified developer issue with Digitalfire Insight for OSX
• Unusual crystal precipitate in frit+lithium glaze
• Upload pictures of your ware
• Use a flap wheel to grind foot rings on ware bottoms
• Use a frit blend ratio to control the amount of kaolin in a glaze recipe
• Use a frit instead of feldspar in a cone 10 glaze. A good reason to do that.
• Use a low silica porcelain to craze test your glazes
• Use the same runny glaze as its own catch glaze
• Use underglazes as liquid stain concentrates in your own transparent
• USGS Mineral Commodity Report
• Using a camera instead of a phone for your picture taking? Beware
• Using a Giffin Grip for jiggering
• Using a glaze to test titanium dioxide from a new supplier
• Using clay as a glue to hold a 3D-printed jigger mold in place
• Using clay with children
• v1 3D Printed Plaster-Reinforced Case Mold Ready for pouring block mold
• v1 DIY Four-Part Mold Natch System Essential for 3D mold-making in ceramics
• v1 First Half of the Case Mold Drawn
• v1.0 3D-printed flanged rail to cast working plaster jigger molds
• v1.0 bowl jigger mold procedure
• v2 Digitalfire Mold Natches in OnShape These are even better than before
• v2.0 3D-printed flanged rail to cast working plaster jigger molds
• v2.0 DIY Jiggering is Here!
• v3 Ceramic Beer Bottle Mold Drawing Obsoletes Previous
• v3 Shelled AI Mug Using OnShape CAD A great on-ramp to learning slip casting
• v6 Beer Bottle Drawing Fits standard swing top stoppers.
• v7 Classic beer bottle mold in OnShape Make authentic-looking beer bottles that are better than glass
• v9 Hybrid 3D-Printed/Plaster Case Mold
• Van De Hulst Equation
• Vansil Wollastonite grade info
• Variable speed lab mixers at Amazon.com
• Variegating effect of sprayed-on layer of titanium dioxide
• Variegation and phase separation with about 5% rutile
• Variegation gone too far!
• Various cone 10R clays with soluble salts on the surface
• Various frits fired at 1850F
• Various frits fired at 1950F
• Various grogs available in North America
• Vase by Chatt McGonagill
• Vase thrown on potters wheel
• VeeGum and bentonite in the same porcelain! How can they fire this different?
• VeeGum and CMC gum can plastify non-plastic powders for making melt-flow test balls
• Veegum CER Saturated suspension
• Veegum is not a gum, it is a gelling agent. CMC gum needs something it provides.
• VeeGum percentage must be precisely tuned in a porcelain
• Veegum T , Mineral Colloid BP, Gelwhite H at cone 6
• Veritas bullers ring measuring device
• Version 2 Ceramic Beer Bottle Mold Making a rubber case master mold
• Version 4 Ball Pitcher 3D printed block mold
• Vertically printed 3D side rails
• Very low specific gravities on two commercial underglazes
• Vevor Potter's Wheel for $175. Can this be real? What am I missing?
• Vibration motor on Amazon
• Video: Create a cookie cutter/stamper in 3D software, print it and use it
• Video: Making SHAB, DFAC, LDW clay body test bars
• View of Whitemud layers between Ravenscrag and Eastend, Sask.
• Vinegar dissolved the inside glaze and crazed the outside one!
• Vintage boxes of Plainsman Clay found. From 1966!
• Vintage DOS Insight runs on a web page
• Vitreous cone 6 stoneware. How?
• Vitreous fired ceramic that stays floating!
• Vitreous red body color with a clear glaze at cone 6. Impossible.
• Vitrification can be obvious by simple visual inspection
• Wanna throw porcelain plates with thick bottoms and thin rims?
• Want bright orange? Use a stain in your own base transparent recipe.
• Want to make a cone 10R super translucent porcelain? Think again.
• Warnings on back of Covia nepheline syenite bag 2021
• Warping during a large print - one solution is multiple pieces
• Warping of PLA under heat of plaster set
• Warping tiles
• Was that batch of frit 3195 really bad?
• Washing all the +200 mesh clay through the stack of sieves
• Washing the EPK slurry through a 200 mesh screen
• Watch out for iron particles in ball clays
• Water can leak through a stoneware clay body
• Water-logging happens when a clay is underfired
• Wax emulsion arrived lumpy and thick
• Wax resist inducing surface pinholes on a low fire transparent over an underglaze
• We fight the dragon that others do not see
• We have to fight with the fibreglass industry to get kaolin!
• We thought we were using 200 mesh silica until doing this test
• Wear on augers that occurs when pugging grogged clays
• Wear that occurs on the stainless steel shaft casing of a pugmill
• Wedge kyanite in M390 for better drying, firing
• Wedging clay
• Wedging manganese speckle into a cone 6 buff stoneware
• Weigh out the ingredients
• Weighing oversize material from a test sieve
• Welded car frame for Lindoe gas kiln
• Welded frame of Lindoe gas kiln
• What 1% iron oxide does in a talc matte at cone 10R
• What a difference the iron oxide makes in these two cone 6 glazes
• What an engobe does for even glaze laydown
• What Bismuth Subnitrate does between 1100-1250F
• What can happen when already vitrified ware is refired?
• What can you do using glaze chemistry? More than you think!
• What causes a clay to split after throwing like this?
• What cones do at low fire is different
• What could be worse than severe bloating? This!
• What does Goldart look like if you fire it by itself?
• What does Hawthorne Firelclay look like when fired?
• What does it take to get a crystal-clear low fire transparent? A lot!
• What happens if you blend 35:65 Nepheline:Ball Clay vs Nepheline:Kaolin?
• What happens if Zero3 Clear is applied too thick
• What happens when a limestone clay mix is fired to cone 6?
• What happens when a terra cotta body is fired to cone 6
• What happens when ceramic glazes lack Al2O3?
• What happens when engobe fired shrinkage is too high?
• What happens when you dip-apply an engobe to dry ware
• What happens when you dry and bisque a piece made of pure kaolin?
• What happens when you opacify a colored glaze?
• What has the trust in online recipes come to?
• What has this low fire transparent glaze turned blue?
• What if G2934 fires too glossy, how can you increase matteness?
• What if you just cannot solve a pinhole problem?
• What is Hold-it clay (for holding jewelry components in place for soldering)?
• What is sintering?
• What is that black stuff on these two glazes?
• What is that glossy square around the decal?
• What is the difference between fahrenheit degrees and degrees fahrenheit?
• What is the secret to cool and functional clay bodies and glazes?
• What is the secret to making the blackest porcelain with the lowest percentage of stain?
• What is the simplest, most practical raku base crackle recipe?
• What makes EP Kaolin unique? Are others as good?
• What material makes the tiny bubbles? The big bubbles?
• What really is a reduction copper red glaze?
• What really is Barnard Slip?
• What should the consistency of CMC gum solution be?
• What temperature is Mexican terra cotta pottery fired to?
• What tin oxide does to this Floating Blue cone 6 glaze
• What to do about lithium carbonate and Gerstley Borate in glazes
• What to do when glazes drain and drip like this
• What we see in the park beside the Plainsman plant
• What will it take?
• What would 10% Zircopax do in a cone 10R dolomite matte?
• What would happen if you made a clay body from 50:50 kaolin and ball clay?
• Wheat Design
• When a DIY black underglaze makes sense
• When a fluid-melt glaze is applied too thickly it runs
• When both mineralogy and chemistry are shown on a data sheet
• When brushing glazes go on unevenly adding stain can help
• When clay bodies are too sticky and plastic they do not release from bats
• When engobing ware stick handles on well, avoid acute angles
• When it makes sense to fire hotter than cone 04
• When kilns are not candled long enough
• When printing support cannot be avoided
• When Supply Chains Broke, Prices Soared. We haven’t forgotten. Time for DIY!
• When the cone does this I need to adjust the program
• When to use a hydrometer and when not to
• When to use vinegar and when to use epsom salts to flocculate a slurry
• When two clays are joined are they compatible?
• When using stains, customize the percentage, host glaze and firing schedule
• Where to get Tabular Alumina?
• Which clay contains more soluble salts?
• Which is better for hobby functional ware? Cone 04? Cone 10 reduction?
• Which is stronger: Cone 10R mug or cone 03 mug?
• Which is the better flux? Cornwall stone or nepheline syenite?
• Which is the champion melter of American/Canadian feldspars?
• Which is the glass beer bottle among these ceramic ones?
• Which one contains more SiO2?
• Which tenmoku base is better: Alberta Slip or a clear glaze?
• White clay with red slip vs terra cotta clay with white slip
• White engobe flaking off terra cotta tiles
• White majolica bases have very, very low melt fluidity
• White spots and blisters in a high zircon glaze at cone 6
• White stain. Does it work?
• White Talc Artware Clay vs Terra Cotta: The difference goes far beyond color
• Whiter Clays and Grinding Capacity: Two problems solved in one place!
• WhiteSpar
• Whole rock analysis shows some as percent, some as PPM
• Why 3D design and printing is a better way to make slip casting molds
• Why a metal mold is needed for ramming clay into a mold
• Why are K2O and Na2O often combined as KNaO in glaze unity formulas?
• Why are rutile blue glazes susceptible to blistering?
• Why are there so many different kinds of plaster?
• Why are these crazing lines dark like this?
• Why are these vessels cracking when hot water is poured in?
• Why ball clays are ground to 200 mesh
• Why did this mug handle crack?
• Why did this piece come out of a decal firing crazed?
• Why dipping transparent glazes may not cover underglazes well
• Why do cracks across the base of ware form an S shape?
• Why do gummed dipping glazes do this as they dry? How to fix it.
• Why do some clays split like this on throwing or forming?
• Why do these cone 04 and 6 clear glazes have so similar a chemistry?
• Why does fluid-melt G3948B not produce an iron red
• Why does Gerstley Borate melt in two stages? Because it is two minerals.
• Why does the glaze on the right crawl?
• Why does the inside glaze crystallize with one frit and not the other?
• Why does this bowl shape always warp in the glaze firing?
• Why does this glaze look like this? What are its mechanisms?
• Why does this glaze variegate like this?
• Why does this terra cotta clay bubble glazes?
• Why does Tony Hansen take months to unload his kilns?
• Why does VC71 not cutlery mark when it is barely melting?
• Why fast fire glazes employ zinc - a melt fluidity test tells us
• Why has this platter has cracked in half during a decal firing?
• Why is hydrated alumina better than calcined for kiln wadding?
• Why is the clay blistering on this figurine?
• Why is the glaze crawling on these tiles?
• Why is this cone 10 oxidation iron-brown glaze pinholing?
• Why is this cone 6 glaze so different on these two different porcelains?
• Why is this crystalline glaze not crazed? Even in the pool at the bottom?
• Why is this transparent so full of bubbles?
• Why is this vitreous low fire ware cracking out of the kiln like this?
• Why it is not a good idea to use straight stain underglaze
• Why mid-fire Grolleg porcelain is ideal for both throwing and casting
• Why pure stain powders make poor inks, slips, underglazes and overglazes
• Why so many bubbles in a fritted cone 6 glaze?
• Why the base of this bowl shape flattens on firing
• Why this dolomite body bisqueware is splitting after sitting around
• Why this transparently-glazed terra cotta is better at cone 03 than 04
• Why throw on a plaster bat when making larger pieces?
• Why use a frit to source KNaO at cone 10R?
• Why were these handles pulled an hour after the mugs were thrown?
• Why would a glaze turn into a jelly like this?
• Why would a low fire transparent require four frits?
• Why would I use a heavily pigmented black glaze on a food surface?
• Why would you bisque fire glazed ware? For transport for glaze firing.
• Why you need to know about spalling
• Will a bentonite slurry addition suspend a glaze? Not like you might have been told.
• Will a cone or ball flow out better in a melt flow test?
• Will leather-hard ware explode or crack of you put it into a kiln at 250F?
• Will soil testing help you assess a wild clay for pottery?
• Windows false virus warning for Digitalfire Insight
• Windows Insight SmartScreen issue
• Windows SmartScreen issue with Digitalfire Insight
• With porcelains, poor plasticity gets worse at the leather hard stage
• Wollastonite containing glazes should be sieved
• Wollastonite helps switching from electric to gas firing
• Wood fired test samples
• Wood/Soda fired Cone 10 mug by John Cummings
• Working with Polar Ice translucent porcelain requires impeccable cleanliness
• Worst case scenario for handle joins and successful drying
• Wow, what a surface. How?
• Xantham gum seals clay against water slaking
• XRF machine in use
• Yellow Iron Oxide original container
• Yellow iron oxide vs. Yellow Ochre - fired at cone 6
• Yellow Ochre as a low fire body colorant
• Yellow ochre slurry color
• Yellow stain has decreased the thermal expansion of the base glaze
• Yellow, black and red Iron oxide in a buff burning body at cone 6 oxidation
• Yikes, the glaze on the right is going on way too thick and drying too fast
• Yikes. Cutlery marking this bad on a popular glaze!
• Yixing clay mesh sizes
• Yixing teacups
• Yixing teapot making. Is it magic? Or highly evolved craft and science?
• You can make your own Ancient Copper brushing glaze
• You cannot fix this crazing with a process or firing change
• You may know Veegum T but do you know VeeGum CER?
• Your boron glaze might melt alot earlier than you think
• Zero3 casting porcelain at cone 04, 03
• Zero3 low temperature stoneware mug
• Zero3 Porcelain mugs
• Zero3 Porcelain with underglaze decoration
• Zero4 frit ware broken with cross section close-up
• Zero4 fritware is more resistant to overfiring than you might think
• Zero4 fritware mugs fired at cone 04
• Zero4 mugs ready for drying
• Zero4 porcelain mugs using New Zealand and Grolleg Kaolins
• Zero4 translucency at cone 04 and 02
• Zircon Blue Faceted
• Zircon Brown Cut
• Zircon glazes cover well but they have a problem
• Zircon Mocha
• Zircon Red Cut
• Zircopax as a fining agent to de-bubble a stained glaze
• Zircopax makes the liner glaze much whiter on this porcelain
• Zircopax, tin oxide, titanium as opacifiers in four base glazes
• ZPL labels coming to Insight-live
• “Fa’s Blue Heaven” crystal glaze on a porcelain tile.‌
• “Retail Rick” Has it Figured Out He’s got a much better way to glaze