Thin, lightweight and easy to cut, 90 COE Wasser is an ideal glass for beginners and experts alike. Wonderful for fusing, bead work, and even foil applications. 12" x 12" sheets.
specifications
General Specifications: Measured "90" Coefficient of Expansion (COE) = 89.7 x 10-1/Co Glass Thickness: 1.6mm (0.063"); Range: 1.5 mm - 1.8 mm (0.059" - 0.07" Glass Weight, nominal: 0.4 gm/cm2 (14 oz/ft2) Sheet Size: Standard glass sheet measure 12 x 12 inches.
Firing Temperatures: (~+5ºF and are dependent upon glass color and thickness Softening Point:1240ºF (677ºC) Tack Fuse: 1240ºF (696ºC)Orton std. lg. cone 18 (r/r 108ºF) Full Fuse: 1340ºF (727ºC)Orton std. lg. cone 17 (r/r 108ºF Annealing Temperature: 940ºF (482ºC) Shrinkage Initiation Point:1360ºF (738ºC) Balling Formation Starts: 1450ºF (788ºC) Glass Lost / Shelf Intrusion: 1550ºF (843ºC)
Note:
Suggested heating rate: 400 degrees/hr
Recommended minimum soak time at full fuse temperature: 30 minutes
Recommended minimum soak time at annealing temperature: 30 minutes
After annealing: suggested cooling rate is 10º/min to 800º(472º), 15º/min to 700º(371ºC)and < 20º/min. to room temperature.