Getoothachopper
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Coming from a traditional background of porc fused to metal ,I have ideas of heating & cooling zirc which are probably wrong . So my question ,,,,,,when glazing monolithic zirc (singles) in the 750/850c range. Do you need to slow cool or is it okay to have the muffle drop open once the glaze hold time is done ?,,,,,,I have always slow cooled everything but I have a glazing furnace I would like to use that has no slow cool feature . Thanks in advance for any replies.