Caramel

The source gives zinc as 2-4%; this record uses the explicitly identified 2% test-tile version. Numeric amounts are source-stated percentages. Test on tiles; use appropriate ventilation and PPE, avoid inhaling dust, review raw-material safety information, and verify functional or food-contact suitability with fired-glaze testing.

Ingredients

Material%
Custer Feldspar40
Silica30
Dolomite20
EPK Kaolin10
Yellow Iron Oxide7.000000000000001
Rutile4
Zochem Grade 500 Zinc Oxide2
Sodium Bentonite2