How o you prevent shrinkage oF the base glass when fusing?

Helena · Post by **Helena** » Thu Feb 12, 2004 4:56 pm

When fusing large pieces of glass together, how do you prevent the base glass from shrinking up in various points along the edge?

charlie · Post by **charlie** » Thu Feb 12, 2004 5:04 pm

if it's 2 layers (1/4") it shouldn't shrink. if it's less, then it will. not much you can do about it. going slowly may help the matters, but probably won't eliminate it.

Geri Comstock · Post by **Geri Comstock** » Thu Feb 12, 2004 7:31 pm

Are you grinding the edges before you fuse? If not, you may have areas where there's only 1 layer of glass and that will shrink up to its equilibrium thickness.

Are you firing too high? This will leave sharpies on the edges.

Geri

Stuart Clayman · Post by **Stuart Clayman** » Thu Feb 12, 2004 11:30 pm

Is the bottom layer Irid?