Harry Nicholson
Two or three Initlial firings at 890C, final two firings at 920C. And that's my usual approach.
August 26, 2018
Trish White
Whoa! Harry that is 1600-1690F!!! how long do you leave the piece in each time?
August 29, 2018
Harry Nicholson
I missed your response, Trish. At 920c I fire for 60 seconds. At those temps (well beyond the enamel specifications) unusual colour changes can arise.