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Ingredients

Ingredient Amount
Whiting 22.10
Custer Feldspar 60.12
EPK Kaolin 17.78
Add Amount
Zinc Oxide 6.50
Red Iron Oxide 5.40
Rutile 10.92

Instructions

This is a runny underglaze. I fire it to cone 10 in reduction in a gas kiln. 

This recipe was shared by Mark Cortright in the October 2021 issue of Ceramics Monthly.