For you to remove your window tint using this method you need: dish soap, paper towels, spray bottle, water, glass cleaner, and a razor blade or razor knife. You should start by lifting the corner of the film using a razor knife, and then firmly grasp the free corner of the film and peel it from your car window.
How do you get old window tint off?
Use your fingernail or razor blade to lift the window film in a corner of the window, and try to peel the film off in one entire piece. Be careful not to cut the defroster lines. Keep the tint moist with ammonia as you strip. Use a razor blade to scrape off any tint that did not peel.
How do you remove window film without damaging the rear defroster?
Use a razor blade to peel back one of the top corners of the tint. Be careful not to touch the defroster lines with a razor blade to avoid damaging them. Remove the film and the plastic down and away from the window using long, firm motions. Work slowly to carefully remove the film without shredding it into pieces.