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 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...

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

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

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...

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 ...

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 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.

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...

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

Opaque glaze in the Laguna Cone 5 Dry Glaze Series.

Substitute for Spodumene. A source of lithia, which is a flux, that helps to develop copper blue tone glazes. Can replace feldspar and also reduces...

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 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.

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