BE - 0309 Cinnabar Opal Sheet
May React With
Copper, Lead, Silver
May appear very muted gray/brown with streaks or variation in color density.
Matures to a red/cinnabar color. May appear slightly dappled.
This style is not suitable for kilncasting because it can become incompatible when held at high temperatures for an extended period. It may also become incompatible in instances where processes exceed the parameters of the test for compatibility. Testing recommended when heatwork exceeds these parameters.
Fusible / Bullseye-compatible.