This is a one of two 6" x 12" granite textured coaster that I can make with my mold, and after several tries I came up with the winning schedule to use. There is a video with instructions on creativeparadiseglass.com website, a tutorial on how to work with the GM113 mold, but I am going to give you the complete instructions here. First I have used two layers of 3mm COE 90 glass which I prefuse with a slightly lower temperature to fuse the two pieces together into a panel and make sure the edges and corners are rounded not sharp. I do that twice and have 2 prefused panels. The firing schedule for the panel is as follows:
300 dph 1265 degrees hold 30 mins
300 dph 1455 degrees hold 10 mins
full 900 degrees hold 1 hour
100 dph 700 degrees off
Once both panels are fused I put the finished pieces on top of the mold.
And I fire this as follows:
250dph 1235 degrees hold 30 mins
350dph 1280 degrees 10 mins
full 900 degrees 1 hour
100 dph 700 degrees off
