Black is a glossy obsidian glaze that produces an intensely dark surface and attractive high-fire effects at mid-range temperatures.
Tableware producers must test all finished ware to establish dinnerware status, due to possible variations in firing temperature and contamination
HF) High Fire
The High Fire Cone 5 glaze series combines your favorites from the legacy Sahara and Celebration glaze lines. High Fire glazes produce interesting effects in both oxidation and reduction and should be brush-applied to bisque ware fired to Cone 04 for the best results.
•Reliable glazes for Stoneware and Porcelain
•Cone 5 / 6