Frit is useful for many applications, including jewelry and casting projects. Frit is made from sheets of art glass which is crushed, screened, and then packaged. 96 COE.
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.