Umber Opal (310-50) 2mm

Contains sulfur and may react to copper bearing glasses. Slight reactive potential to lead bearing glass. 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.

Sheet sizes are:

1/2 Sheet - 20" x 17"

1/4 Sheet - 10" x 17"

10" x 10"

5” x 10” 

Reaction Chart:  Download PDF

Bullseye Price Code D