Wissmach Clear Transparent (Wissmach's name for it is Crystal, color code 96-01) is COE 96 kiln glass, a water clear thin 2mm sheet tested for fusing compatibility.
Appearance Clean and colorless with high clarity, showing only the occasional fine seed typical of handmade rolled sheet. It vanishes over any color placed beneath it, and the thin 2mm gauge keeps caps and multi layer builds from gaining unwanted thickness.
Working notes Wissmach’s recommended full fuse schedule for a 6mm project made from two 3mm layers: heat at 300 degrees F per hour to 1225 F and hold 30 minutes, then 600 per hour to 1460 F with a 10 minute hold, cool as fast as the kiln allows to 960 F and hold 1 hour, then 100 per hour down to 700 F. These numbers come from Wissmach’s current published firing guidance. They are guidelines, not guarantees. Kilns differ, so fire a small test piece first.
Reactions Crystal is not flagged on Wissmach's COE 96 reactive chart. It sits next to any color in the line without forming a reaction line, which is exactly what you want from a clear that goes everywhere.
Format and sizes Sold as a 2mm 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 in a 3mm sheet · with a Luminescent coating · with a Luminescent coating .
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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