Originally Posted by BigD 275
Didn't mean that "straight razor". An actual razor blade, the "old school" ones. Those work like a charm and are easy to control. Like I said, the tint shops around here use this method.
HD single edge, meant for use in a scraper is best. The double edge blades will snap and cut you before you know it. Either throw it away after you've finished or tape the edge,cause if you don't and just toss it in your toolbox it'll get you sooner or later.
I'll second the lighter fluid/naphtha suggestion. It'll dissolve plastic.