We are limiting the purchase of AMACO and Mayco glaze to 2 pints of each color per person. Please note we will be closed 11/23 - 11/27.

 

Gerstley Borate

A sodium-calcium-borate compound used as a low temperature flux which helps prevent crazing. Can act somewhat as an opacifier. Standard substitute for Colemanite.

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Type: Material


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