[Brent Deines]

I used to apply window film, and we always used a heat gun to remove the film. When heated it usually peels right off. If there is any residue remaining, 3M adhesive remover takes that right off. No spraying and no soaking necessary.

Before figuring out that method we used a razor blade, but that was a very tedious task, especially on the rear window as the defroster lines are easily damaged. A body shop showed me the error of my ways.