#6 Tile Clay Kaolin

#6 Tile Clay is a very plastic kaolin with good green strength. In pottery, the word Kaolin is synonymous with China Clay, a general name for an almost pure version of Kaolinite (a primary clay). Kaolins are usually very white and can be used to increase...

10 Mesh Flint Grog (coarse)

10 mesh Flint Grog. Considered to be a coarse mesh grog. Grog is incorporated into clay bodies to give texture, impart 'bite' when throwing, to assist drying, or to increase firing strength. It will reduce the rate of clay shrinkage during drying and, in...

30 Mesh Flint Grog (fine)

30 mesh Flint Grog. Considered to be a fine mesh grog. Grog is incorporated into clay bodies to give texture, impart 'bite' when throwing, to assist drying, or to increase firing strength. It will reduce the rate of clay shrinkage during drying and, in...

Alberta Slip Clay

Alberta Slip Albany slip substitute Alternate Names: Archie Bray Slip Oxide Analysis Formula CaO 5.90% 0.382 MgO 3.90% 0.352 K2O 3.50% 0.135 Na2O 2.20% 0.129 P2O5 0.10% 0.003 TiO2 0.30% 0.014 Al2O3 15.20% 0.541 SiO2 53.54% 3.236 ...

Alumina Hydrate

Alumina Hydrate Formula: Al2O3.3H2OAlternate Names: Alum Hydrate, Alumina Trihydrate, Hydrated Alumina, Alpha Aluminum Trihydroxide, Gibbsite Oxide Analysis Formula Al2O3 65.39% 1.000 LOI 34.61 Oxide Weight 102.00 Formula Weight 155.99 ...

Alumina Oxide (325 mesh) - weighed out

Alumina (properly called aluminum oxide) powder as used in ceramics can be a white granular material (like table salt) or an exceptionally fine silky white and dense powder (depending on the type and processing method). There are three general types of...

Barium Carbonate

Formula: BaCO3Alternate Names: Barium Carb, Witherite Oxide Analysis Formula BaO 77.66% 1.000 CO2 22.34 Oxide Weight 153.30 Formula Weight 197.40 If this formula is not unified correctly please contact us.  DENS -...

Barnard/Blackbird Slip (SUBSTITUTE)

This is a blend of minerals that closely simulates Barnard (Blackbird) Clay, a widely used clay that contains iron and manganese. Typical analysis: SiO2 30.37% Fe2O3 26.27% Al2O3 20.52% MnO 8.72% K2O 1.68% CaO 0.59% MgO 1.07% TiO2 1...

Bentonite

200 mesh Western Bentonite Available by the pound or in full bag quantities for best pricing. The full bag from the mine is a 50# bag; brown bag, blue text Volclay, Bentonite   Western Bentonite (sodium bentonite) is most frequently...

Black Copper Oxide (Cupric Oxide)

One of the oldest colorants used by potters. It is a popular source of copper in glazes and glass. It is a very strong flux, in a mix of 50% Ferro borax frit 3134 it will dissolve a firebrick crucible at cone 6! It is the most stable form of oxidized...

Black Iron Oxide

Ceramics Monthly Technofile article from March 2011 "All about iron" by John Britt  Iron—The fourth most common element in the earth’s crust and the most common element (in terms of mass) on the planet, comprising 35% of the...

Borax - Granular

Borax Decahydrate is the refined form of natural sodium borate. Composed of boric oxide (B2O3), sodium oxide, and water, it is a mild, alkaline salt, white and crystalline, with excellent buffering and fluxing properties. Borax...

Boric Acid

Boric acid is a crystalline water soluble boron mineral. It is white in appearance and can be used as granules or as a powder. Both forms are stable under normal conditions, free-flowing, and easily handled by means of air or mechanical conveying. In...

Burnt Umber

Umber is a hydrated iron oxide that also contains significant manganese, calcia, alumina and silica. When umber is calcined (referred to as "burnt" because it is done to lower temperatures), the color intensifies. The material is used to color many...

Calcium Carbonate (Whiting)

Calcium Carbonate (whiting) is a carbonate of lime. CaCo3. A stable and insoluable (in water) compound of calcium which is used to introduce the oxide calcia (CaO) into clay bodies and glazes. Calcium Carbonate is the chemical name. The potter's...

Cedar Heights Fireclay 50 mesh FULL BAG

Cedar Heights Fireclay is used to formulate stoneware clay bodies. Fireclay is a general name for sedimentary clays usually associated with coal measures they are very ancient deposits. Particle size averages 0.1-5.0 microns. Reasonable plasticity and...

Chromium Oxide Green

Chrome oxide is a very refractory ceramic colorant (even a 50% mix with a high borax frit will not even begin to melt it in a crucible). Chrome oxide is the only stable oxide of the metal chromium. It is a bright to...

CMC Gum

Powdered gum can be very difficult to disperse in water thus it is difficult to add it to an existing liquid batch. However if gum powder is mixed with other dry ingredients before adding them to the water it can be done (often 0.5-1.5%). A much more...

Cobalt Carbonate

A pinkish tan to purple-ish powder. It is a strong colorant and almost always produces blue in glazes (unless in very high percentages where it is black). Cobalt carbonate is an extremely active melter (even more than cobalt oxide), in a mix of 50% Ferro...

Cobalt Oxide

CoO is a metallic coloring oxide that produces blue in glazes at all temperatures (unless in very high percentages where it will be black). Black Cobalt Oxide is a key source of CoO used in glazes, glass, and enamels. Cobalt is the most...

Copper Carbonate

Conceptually, copper carbonate is CuCO3, however this form is not normally available in the market (copper carbonate basic is the article of commerce) so the powder should be viewed as a family of compounds. This material is considered volatile during...

Cornwall Stone

Also known as: Pegmatite. Graven. Gowen. Manx stone. Meldon stone. Growan. Petuntse. Amakusa.Cornwall stone is a low iron feldspar material used primarily as a flux in clay bodies and glazes. Is mined in the Cornwall area of the UK. It melts...

Custer Feldpar (potash)

Custer Feldspar is a potash feldspar. Feldspar is a large group of minerals which have decomposed from granite and igneous rocks and are thus allied to clay. The main group consists of the alumino-silicates of potassium, sodium, calcium, and, more...

Di-Calcium Bone Ash (typically for raku)

Real bone ash (natural, di-calcium bone ash) is obtained by calcining bone up to approximately 1100°C and then cooling and milling. This material is still manufactured today since some of its important properties are due to the unique cellular...

Dolomite (325 mesh)

A mineral CaCO3MgCO3 Dolomite is mainly used in stoneware glazes (temperatures about 1175&176;C or 2174&176;F). There are other suitable sources of calcia, but insoluble magnesia is less common. Dolomite acts as a flux but, if used to replace...

EPK Kaolin

E.P.K. stands for Edgar Plastic Kaolin, and is a standard throughout pottery. If a glaze calls for kaolin (or china clay), most potters default to EPK first. If they don't get the results they were looking for, they will then explore some of the other...

FFF Silicon Carbide

SiC powder has some curious uses in ceramic glazes. It is employed to make crater and foam glazes. The silicon takes up available oxygen to make SiO2 and the carbon combines with oxygen to make the CO2 that creates...

Foundry Hill Creme

Foundry Hill Creme is a blended stoneware clay (although some consider it a ball clay). This differentiation comes from the slightly lower alumina content (near 20%), compared to the higher alumina content (near 28%) in more common ball clays (like OM-4)...

Frit 284M

Barium Frit  OXIDEANALYSISFORMULA BaO 27.40% 0.668 Na2O 5.50% 0.332 Al2O3 15.40% 0.198 B2O3 12.40% 0.666 SiO2 47.50% 2.955 ZrO2 1.80% 0.055 Oxide Weight 373.91Formula Weight 373.91 Frit Softening Point = 1500°F In 2014,...

Frit 3110

High alkali, low alumina and boron leadless high expansion frit. OXIDEANALYSISFORMULA CaO 6.30% 0.29 K2O 2.30% 0.06 Na2O 15.30% 0.64 Al2O3 3.70% 0.10 B2O3 2.60% 0.10 SiO2 69.80% 3.03 Co-efficient of Linear Expansion = 10.10 Melting Range...

Frit 3124

Leadless high calcium borosilicate frit OXIDEANALYSISFORMULA CaO 14.20% 0.71 K2O 0.70% 0.021 Na2O 6.30% 0.29 Al2O3 9.90% 0.27 B2O3 13.80% 0.56 SiO2 55.20% 2.59 Co-efficient of Linear Expansion = 7.90 Melting Range = 1000-1020°C Cone...

Frit 3134

Leadless and zero alumina high calcia borosilicate frit OXIDEANALYSISFORMULA CaO 20.10% 0.68 K2O 0.00% 0.00 Na2O 10.30% 0.32 Al2O3 0.00% 0.00 B2O3 23.10% 0.63 SiO2 46.50% 1.48 Co-efficient of Linear Expansion = 9.60 Melting Range =...

Frit 3195

Leadless High Borax/calcia for glaze OXIDEANALYSISFORMULA CaO 11.20% 0.67 K2O 0.00% 0.00 Na2O 0.00% 0.00 Al2O3 12.39% 0.41 B2O3 22.99% 1.12 SiO2 47.44% 2.66 Co-efficient of Linear Expansion = 6.5 Melting Range = 920-950°C Cone Range:...

Frit 3269

Leadless High Borax/calcia for glaze OXIDEANALYSISFORMULA CaO 11.20% 0.67 K2O 0.00% 0.00 Na2O 0.00% 0.00 Al2O3 12.39% 0.41 B2O3 22.99% 1.12 SiO2 47.44% 2.66 Co-efficient of Linear Expansion = 6.5 Melting Range = 920-950°C Cone Range:...

Frit 3292

Frit 5301

High Expansion Leadless Fluorine Frit OXIDEANALYSISFORMULA CaO 2.40% 0.13 K2O 5.50% 0.18 Na2O 14.00% 0.69 F 9.00% 1.45 Al2O3 12.10% 0.36 B2O3 12.50% 0.55 SiO2 44.50% 2.27 Co-efficient of Linear Expansion = 11.40 Melting Range =...