Annealing small thick pieces
Posted: Sun Oct 06, 2019 12:46 pm
I have always used BE “Annealing Thick Slabs” schedules for pieces of any size. The smallest thick pieces I’ve fired have been 6” by 8”.
Another glass artist showed me a smaller piece that was a uniform 1-inch thick, about 4” by 4”, and said it didn’t need to follow the BE schedule for annealing because of the smaller dimensions. Annealed overnight, it was fine five years later. I didn’t have an opportunity to examine it under a polarizer.
Is there a guideline about this? What dimensions are considered a “slab”? How would I determine the annealing schedule for, say, a piece that’s 1” thick and 2” by 2”?
Another glass artist showed me a smaller piece that was a uniform 1-inch thick, about 4” by 4”, and said it didn’t need to follow the BE schedule for annealing because of the smaller dimensions. Annealed overnight, it was fine five years later. I didn’t have an opportunity to examine it under a polarizer.
Is there a guideline about this? What dimensions are considered a “slab”? How would I determine the annealing schedule for, say, a piece that’s 1” thick and 2” by 2”?