Fused Glass

Fused glass is a term used to describe glass that has been fired (heat-processed) in a kiln at a range of high temperatures from  1100F to 1500F. There are 3 main distinctions for temperature application and the resulting effect on the glass.

Firing in the lower ranges of these temperatures  (1100 1250 F) is called slumping. Firing in the middle ranges of these temperatures  (1250-1350F) is considered "tack fusing". Firing the glass at the higher spectrum of this range (1350-1500F) is a "full fuse".

All of these techniques can be applied to one glass work in separate firings to add depth, relief and shape.