Doing 2 things at once

#12674
Stephen Richard
Participant

What you are proposing is not usually successful.  It is best to do one operation at a time.

The powder will probably remain gritty.  Although 680C is above normal slumping temperatures, it is not in the tack fusing range, so the surface is unlikely to be polished.

I am not sure why you are worried about a third firing.  Taking the powders to rounded tack fuse will give them a nice surface, even though not flat.  The glass should survive that easily, just make sure you do a good anneal after each firing.

Stephen Richard

blogs at: http://www.verrier-glass.blogspot.com/ and  http://www.glasstips.blogspot.com/

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