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Ingredients

Ingredient Amount
EPK 2.70
Silica 19.70
Custer Feldspar 46.10
Whiting 8.20
Dolomite 5.90
Gerstley Borate 13.50
Zinc Oxide 3.90
Add Amount
Cobalt Carbonate 1.00
Copper Carbonate 4.00

Instructions

I would assume that the source of this glaze was from Alfred University but I received this version from Shane Christensen (Dixie State University).

The test tile is Coleman Porcelain fired in reduction.
Can be runny if applied thickly.