Gillespie Borate - Gerstley Borate Substitute Size:22.68 kg Model 222 & 222S -

Model 222 & 222S - Total Number of Elements in Kiln: 8

Each side of Texture 8 provides a different pattern that allows you to make a unique yet consistent texture on your vessel or slab and develop new forms in your work

we believe it should function well and be a joy to use

After decorating

Overall length: 21 1/2 inches

Gillespie Borate - Gerstley Borate Substitute Size:22.68 kg Model 222 & 222S -A very close substitute for Gerstley Borate that is close to extinction. Gillespie Borate is a naturally occurring source of boric oxide, promoting early fusion in glazes. It's a blend of the same minerals proportioned to preserve the chemistry and working properties of Gerstley Borate. Use it as a direct 1: 1 substitute. Testing in your glazes when substituting for Gerstley Borate is recommended as there are some subtle differences and impurities