Contains sulfur and may react with copper bearing glasses. Slight reactive potential to lead bearing glass. This style is not suitable for kilncasting because it can opalize (and turn a dense green/brown) and/or become incompatible when held at high temperatures for an extended period. It may also opalize and/or become incompatible in instances where processes exceed the parameters of the test for compatibility. Testing recommended when heatwork exceeds these parameters. Sheet sizes are: 1/2 Sheet - 20" x 17 1/2" 1/4 Sheet - 10" x 17 1/2" 20" x 20" 10" x 10" 5" x 10" 5" x 10"s are perfect for testing colors before you commit to buying a larger piece, or if you just need a small piece. **Please note, 5" x 10" pieces may vary in size.** REACTION CHART Reaction Chart: Download PDF Bullseye Price Code C
