Bullseye Light Rhubarb Shift Tint (style 001858) is a 90 COE fusible glass sheet, a transparent color for fusing, slumping, and kilnforming.
Cold characteristics Color may shift from red to green depending on light source and thickness.
Working notes Hues of shift colors change depending on light source (natural, incandescent, LED, or fluorescent) and sometimes thickness, regardless of whether they have been fired or not. Color is essentially stable through firings, though color may develop slightly when casting thicker material. Fusible / Bullseye-compatible. See sheet glass notes on this style.
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 Double-rolled sheet, 3mm standard thickness, with a rolled edge. 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.
Helpful downloads What to Expect from Bullseye Glass (PDF)
Technical data courtesy of Bullseye Glass.
Description updated: July 7, 2026
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