Windows Tint Removal Kit
The difficult thing about removing tint is that most film is constructed of two layers of tinted polyester. When you try to peel the film off the glass, the top layer will usually pull right off leaving the second layer behind. This second layer will not peel off, it will just flake and tear like a price tag.
1. To over come separation between layers you must soften the adhesive so that both layers peel at the same time. This is very important, if you peel the just the top layer, you may as well just use razor blades as there is no way to peel the second layer off without picking at it for a few hours. You MUST try to peel both layers at once.
NOTE: You are more than likely to damage one or more of your defroster lines, when this happens, the cut line will not work anymore. Some cars have radio antennas mounted alongside the defrosters made of the same material. If you damage these, your radio antenna will not work! Be careful! Taking it to a tint shop to be done greatly increases the odds of saving the lines, but even a tint shop can not promise to save your lines, sometimes the film is just to far gone.
2. First, clear the window of any obstructions, like the brake light, speaker covers etc.
3. Next cut open the garbage bag so that it will be big enough to cover the entire window. Spray some water on the outside of the back window and the lay plastic bag over the glass. Cut away excess plastic so that it is now roughly the same shape as the glass.
4. Next, lay a tarp over rear deck and seat, spray 409 liberally on the inside of the back window. (409 is very strong, I suggest you hold your breath during this step) and cover 409 soaked tint with the plastic bag so that it won't evaporate.
5. Park the car with rear window facing the sun and turn on the rar defrost for about 1/2 hour. The film should now be ready to peel.
6. When you are ready to start peeling, leave the plastic in place so the 409 wont dry. Get the peeling started with a razor blade in a corner where there are no defroster lines. Try to peel film off in one piece. If the 409 dries as you peel, the glue will get hard again, so spray a bit of 409 on the area as you peel.
7. Once the film is peeled you may need to scrub some small spots of adhesive off with 409 and fine 0000 steel wool. Mop up scrubbed areas with paper towels before they dry. Finish up with window cleaner and paper towels.
Removing tint using a Steamer
If you have access to a Jiffy steamer or similar steam machine, you can make quick work of tint removal. Apply the steam to a small spot for a few moments and use a blade or the spout of the steamer to peel the area just steamed, when you have enough to hold, just peel slowly as you steam just ahead of the area you are peeling.