Raw Materials

A soda spar. It can reduce crazing tendencies when added to a clay body. Also used in glazes where a soda spar is required.

325 mesh silica is typically used in glazes.

CaCO3 This is the most common source of calcium in glazes. It is a high temperature flux that gives durability and hardness to glazes. Whiting 325 ...

A fine, particled, lavender powder used as a colorant in glazes and slips. It is the most stable and reliable colorant. Produces various shades of ...

Good substitute for Custer Feldspar. A selected white firing high grade potassium feldspar ground to 200 mesh for ceramic applications. Moderate po...

A very effective zirconium glaze opacifier. Ultrox opacifiers claim uniformity of glaze opacity, texture and color over a wide range of temperature...

The most effective opacifier to produce even, opaque, glossy glazes. The normal use of Tin Oxide in a glaze is between 5% and 10%. A dull matt glaz...

A very fine-grained plastic clay of volcanic origin containing colloidal matter. Used in small amounts as an additive to clays to aid in plasticity...

Sodium silicate is commonly used in ceramics as a deflocculant in slip preparation by neutralizing the charges of particles in the slip, allowing f...

A green powder used as a glaze colorant. Depending on conditions and formulation it may produce green, blue-green or copper red. TOXIC IN RAW FORM.

Ferric oxide. Basically the same as black iron oxide except not as concentrated.

A useful, high temperature flux. It increases the maturing range of glazes and produces bright, glossy colors. Also may be used to give opacity to ...

A natural calcium silicate that can be used to replace silica and whiting where they are used in combination in clay and glazes. Can also act as an...

It is a source of Lithia for glazes. A strong flux, beginning to aid in the melting of glazes at 1472°F. Used extensively as a secondary flux in le...

Calcium Borate source used with other frits for low cost pottery glazes from Cone 06 to Cone 01. Melting Range 1450°.

A fine-grained ball clay with excellent plasticity and strength. Old Mine #4 is an "industry standard" based on its popularity in both casting and ...

Crystalline minerals made up of mainly silica and alumina in combination with sodium and potassium oxides. Often considered a natural frit. Used ex...

Co3O4, CoO A reliable, stable, black powdered oxide. In small amounts it produces consistently strong blue tones. Used as a glaze colorant and bru...

A titanium dioxide tan colorant which contains a small amount of iron. Used both for color and its tendency to provide various mottled textures.

AKA Flint. The most common source of silica in clay bodies and glazes. Increases the thermal expansion in clays and decreases thermal expansion in ...

An economical, high purity, off-white talc. A major component in low fire, Cone 06-Cone 2 lighter colored clay bodies.