Raw Materials

USG Pottery Plaster is great for all types of ceramic slip casting applications. Pottery plaster is formulated for long life and reduced breakage (...

325 mesh silica is typically used in glazes.

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

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 ...

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

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

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

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 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.

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...

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...

This is the oldest glaze colorant known. It is a strong flux and will produce fluid glazes. Can produce copper reds in reduction firings. TOXIC IN ...

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

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 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...

A black powder which gives red, brown, purple or black tones to clay bodies and glazes. A strong flux when added in large amounts to clay bodies.

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

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

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

Opaque glaze in the Laguna Cone 5 Dry Glaze Series.