Wissmach Medium Violet Transparent with Luminescent coating (base color code 96-311 V) is COE 96 kiln glass, a pale violet 3mm sheet with an iridescent surface, tested for fusing compatibility.
Appearance A quiet, pearly sheet where the shimmer sits in soft washes of pink and lavender over the pale violet base, closer to the sheen inside a shell than a loud rainbow, and it shifts gently as the light and viewing angle change. The effect shows in ordinary room light, no special lighting needed.
Luminescent coating The Luminescent coating lays a soft mother of pearl shimmer over the pale violet base, drifting through pink, lavender and faint gold as the light and viewing angle change. The coating is a low fire surface layer and it is heat sensitive. Fired face up, heat and oxygen can burn it away. Wissmach recommends reverse fusing with the coated face down on a flat kiln shelf and keeping the top temperature at 1400 F or below. Do not cap the coated surface with clear glass, capping makes the coating disappear. Keep any later firings below 1250 F. For a full fuse with two 3mm layers, Wissmach’s Luminescent schedule runs 400 degrees F per hour to 1225 F with a 30 minute hold, then 600 per hour to 1400 F with a 10 minute hold, cooling as fast as the kiln allows to 960 F for a 1 hour hold, then 100 degrees F per hour down to 700 F. Results vary sheet to sheet, so test fire a small piece first.
Reactions The base glass is not flagged on Wissmach's COE 96 reactive chart. It sits next to any color in the line without forming a reaction line, so it pairs cleanly across the palette.
Format and sizes Sold as a 3mm sheet in 8" x 10.5", 10.5" x 16" and 16" x 21" sizes. Choose your size from the options on this page.
Fusing and compatibility Tested compatible with other Wissmach COE 96 kiln glass. With glass from other makers, a matching COE number alone does not guarantee compatibility, so fire a test tile before committing a project.
More of this color Also available without the coating (plain sheet) .
Helpful downloads Wissmach COE 96 Kiln Glass Catalog
Technical data courtesy of the Paul Wissmach Glass Co.
Description updated: August 13, 2026
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