Bullseye Deep Royal Purple (style 001128) is a 90 COE fusible glass sheet, a transparent color for fusing, slumping, and kilnforming.
Cold characteristics Bullseye writes these notes for the standard 3mm sheet of this color; this page is the 2mm thin rolled version of the same glass.
Very dark glass. Little light transmission in 3 mm thickness.
Working notes Stable. No color shift.
Reactions This color is not reactive. It can sit next to any color without forming a reaction line, which makes it a dependable choice for bases and backgrounds. See the Reactive Potential of Bullseye Glass chart to find the colors that do react.
Format and sizes Thin-rolled sheet, 2mm, with a rolled edge. The thinner sheet is ideal for overlays, fine detail, and controlling stack thickness. Available in the sizes shown above.
Fusing and compatibility Tested compatible with other Bullseye glass. When you combine it with glass from other makers, matching COE alone does not guarantee compatibility, so fire a small test tile first.
More of This Color The same Bullseye color in other forms: 3mm Sheet · 3mm Iridescent Sheet · 2mm Iridescent Sheet · Frit · Stringers · Ribbon .
Helpful downloads What to Expect from Bullseye Glass (PDF)
Technical data courtesy of Bullseye Glass.
Description updated: July 7, 2026
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