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Bullseye - COE 90
|Cold characteristics:||Color variations common from pastel to vibrant yellow.|
|Working notes:||Lighter coloration matures and becomes consistent to target upon firing. A sulfur glass. May react with with lead and Kupfer glasses to create dark interface (lead sulfide, Kupfer sulfide). Striker.|
|May react with:||Kupfer|
"Striking glasses" change dramatically to reach target color during firing.Colors may vary, depending on firing schedule, rate, atmosphere, and heatwork. For color-sensitive projects, test before use.