Slumping times


It depends upon the process temperature, thickness of the glass, shape of the mold, etc, etc, etc… there is no “one size fits all”. The closest I have to a OSFA schedule is ramp to 1100, hold 30, ramp to 1225 and hold 15. This works for 2-4 layer, relatively shallow slumps (bowls, sushi plates, etc). If you have a deep slump, small span, etc., you’re going to need more time and possibly more heat.

The best thiing to do is observe the piece in the kiln.

Dana w.

Jester’s Baubles Fused Glass Designs

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