Wissmach Pale Green Opalescent with Luminescent coating (base color code 96-06) is COE 96 kiln glass, a soft mint green 3mm sheet with an iridescent surface, tested for fusing compatibility.
Appearance The soft green base sits under a hazy mother of pearl veil, with washes of blue, dusty pink and gold moving across the surface as the sheet tilts. The rainbow effect shows in ordinary room light, no special lighting needed, and because the base is opaque the shimmer reads clearly against it from any angle.
Striking The base glass is one of Wissmach's Opaque colors, which the maker notes may strike to a deeper or denser shade after firing. Figure on the fired green coming out slightly richer than the unfired sheet, and fire a sample chip if the exact tone matters.
Luminescent coating The Luminescent coating lays a pearly shimmer over the pale green base, drifting through blue, dusty pink and 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 Pale Green, a copper bearing color on Wissmach's COE 96 chart. In direct contact with sulfur bearing colors such as String of Pearls, Oyster Pearl, Honey or the red and orange family, it can form a darker reaction line where the glasses touch. Test the pairing first when it matters.
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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