Made from crushed, screened, and magnetically cleaned Bullseye Compatible sheet glass. Frits are versatile and can be used in: Pâte de verre and kilncasting Kilnforming, including “glass sketch” and “painting with light” techniques Torchworking and blowing, to create colors and patterns on surfaces. In application, color saturation may vary. Thin layers may be lighter in color. Thicker layers may be darker and more saturated in color.