Ingredients

Ingredient Amount
Borax 4.50
Gerstley Borate 9.10
Ferro Frit 3110 31.90
Ball Clay 13.60
Kaolin 27.30
Silica 13.60

Instructions

This recipe was shared by Tom Bartel in the February 2019 issue of Ceramics Monthly.
This base is meant to be colored with commercial stains, not oxides.