Coal Black is an opaque, slick obsidian glaze that boasts a glossy, smooth surface after firing. 100% mixable and true to their unfired color, the Teachers Palette glazes are a must-have for any classroom or studio.

Also try using using Cotton (TP-11) as a base glaze and, using any of the other Teacher's Palette colors, brush on colorful designs and patterns reminiscent of majolica ware.

Glaze Fire To: Cone 05 = 1031°C / 1888°F*
Apply to bisqueware fired to Cone 04 = 1063°C / 1945°F *
* Firing temperatures are based on normal (medium speed) firings.