Plainsman Buffstone Cone 06-6 Buff Ceramic Clay Body, 20 kg

Plainsman Buffstone Cone 06-6 Buff Ceramic Clay Body, 20 kg

A general-purpose medium plasticity clay. If you are using clay with children the lower price of Buffstone and its utility may interest you. Firing is commonly done at cone 06-04.
Buffstone is pure A3, one of Plainsman's native buff-color-burning stoneware materials. It contains a small amount of bentonite to improve plasticity and slow down drying. Its texture is somewhat sandy. Some plasticity is lost to the clay body when scrap clay is reconstituted, add more bentonite if needed (e.g. 1%). Extra drying precautions are appropriate for pieces of uneven thickness.

At cone 06 all buff and white burning clays fire to a porous matrix and have low strength (Buffstone is a little more porous than most). Notwithstanding this, cone 06 is convenient for schools and a wide array of commercial low-fire glazes are available for the making of decorative objects. Buffstone requires no special firing procedures if ware is completely dry. It will withstand kiln firings up to cone 10.

Although Buffstone fits many commercial glazes out-of-the-kiln it will eventually craze most of them. Fit can be improved by bisque firing at cone 03.

Proudly Manufacturered in Canada by Plainsman Clays.

Storage: Protect ceramic clay bodies from direct sunlight, avoiding excessive temperature changes and protect from frost.

Use: It is recommended to test clay body prior to large scale use in order to verify suitability in both the ceramic process (shaping, drying, firing and decoration) and the final application that is expected to be obtained.