Transparent sheet glass is sold in various colors, as well as in frit and powder form. Each color is shown from left to right as a single layer unfired, single layer fired, color on clear fired, and double color layers fired.

Opaque sheet glass is sold in various colors, as well as in frit and powder form.

Prisma Glass™ is Wissmach’s blend of 2 or 3 colors to create uniquely streaked sheet glass with different levels of transparency. The first color in the name is the more dominant color.

Wissmach Opaque and Prisma™ colors may strike to a deeper or denser color after firing.

Reactive Potential: By combining a color that contains copper () with one that contains sulfur (), a chemical reaction resulting in copper-sulfide may occur. Different colors hold different amounts of the reactive materials. Results are not quantifiable or uniform, and will vary based on batch, process temperature, specific combination of colors, etc. Have fun experimenting! 

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