03-19-2007, 09:37 PM
I tried several sheets of Evergreen .015 clear sheet styrene from the hobby shop, and each curled up when heated in the oven. I then used a heavier plastic I cut from the "window" of a gift box of vodka (Please don't drink while working on AC/DC radios) and it worked great. A heavier sheet of styrene may work, but the hobby shops don't seem to carry it around here.