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Ingredients

Ingredient Amount
Gerstley Borate 1.00
Lithium Carbonate 1.00
Water 2.00

Instructions

Note: Gerstley Borate and Lithium Carbonate are listed in cups. Water is listed in gallons.

Applied in 1–3 thin layers with a brush to the outer surface of the clay. Tends to settle, so be sure to mix well before application. 

 

This recipe was shared by Margaret Kinkeade in the March/April 2023 issue of Pottery Making Illustrated.