Uneven heating


It is important to keep careful records of the heating/cooling cycles (temperature, time, ramps up, cool downs, segments) as well as the type of glass you are using. Colors can act differently– darker colors tend to heat faster than lighter colors, but you need to keep track of what actually happens without relying solely on a “rule of thumb.”And just as you would not mix different COEs in a single piece, it is best to keep to one COE in the kiln.


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