Forming Stages information is provided to help users understand the melting characteristics of System 96 products. The temperatures provided are estimates for common kilns firing a project about 12-inches (30 cm) diameter or square, consisting of two full glass layers and a third design layer (fired thickness about 1/4-inch (6mm)).
Use these guidelines as a starting place, then make adjustments to obtain the desired results for your specific project using your unique equipment.
Temperatures are given in degrees Fahrenheit. Need Celsius?
|Forming Stage Diagrams (2 pieces of glass in cross-section)|
|Tack Fuse||Contour Fuse||Full Fuse|
|1350º- 1370º||1400º-1450º||1460º- 1480º|
|Slump||Previously fused project softens and slumps to take the shape of a selected form or mold.||1225º-1250º|
|Tack Fuse||Separate glass layers are fused together with little deformation beyond softening or rounding of edges.||1300º|
|Contour Fuse||Separate glass layers are fused together, edges are soft and rounded, project surface retains a degree of dimesion desired by the artist. (Any degree beyond Tack but not yet Full fused.)||1400º-1440º|
|Full Fuse||Separate glass layers are completely conjoined into a single uniform layer, top surface is smooth and void of dimension or relief.||1475º|
|Combing||Recommended temperature for a 3/8-inch thick combing.||1660º|
890 (+/- 10)
955 (+/- 10)
476 (+/- 6)
513 (+/- 6)
680 (+/- 6)