Lili Krakowski on sat 1 mar 08
As I know nothing about crystalline glazes, I bow to Bill Schran who DOES
know all about them. (Gorgeous article!)
So one must address other possibilities:
Are you sure about the dust? I have at times had dust remain on bisque ware
after sponging the bisque. I usually give my bisque a thorough wash the day
before I glaze. Textured or carved work can hold dust as can the "armpits"
of handles.
Too low bisquing can do it. If you changed clay bodies, OR recently got a
NEW batch of same old-same old, there may have been a change in the make-up
of the body and it may hold more stuff that needs to be burned off.
Fournier speaks of flocculated glazes being liable to flaking....Did
disaster hit ALL the glazes, or just some?
I am NOT blaming the victim! but let me ask: did the temp of your studio
change? Was it different from last time? Because if, before, the pot and
glaze dried "in one another's arms" peacefully, for hours, and this time
you turned up the heat and dried them quickly, you may have created enough
vapor to pry the glaze up. By the way: was there any difference in the
firing itself? Slower, faster, kiln fuller, emptier
I do not think the absence of a shelf atop would do anything except maybe
slow down air circulation. If your
electric kiln has a venting thingies at the bottom, I know nothing about
them, so cannot
opine if that may have caused it.
Lili Krakowski
Be of good courage
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