Ok so I need to remove some window tint. The side glass wasn't too terrible, however the rear window is a PITA. It has rear defrost so I cannot use a razor. I have tried the plastic bag w/ 409 trick, however it is 40* here and that didn't work even with a hair dryer going, heater going and defrost on...
Is there any chemical I can use? I saw a guy used aircraft stripper and a plastic blade....