If I'm refiring a piece and adding only frit as a design element, do I need to go as slow through the bubble zone, (1100-1200 going up), as I did the first time? Do I need to program a few holds in that range also?
You will want to ramp up to 1000 slowly, particularly if there is a lot of color contrast in your piece, or a lot of frit on top. Otherwise you are likely to get a thermal shock on your way up.
Barbara
Barbara
Check out the glass manufacturer's recommended firing schedules... LATEST GLASS