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My tint is showing some bubbles and I'm thinking of bringing it to another shop to re-tint (3M lifetime warranty against bubbles). Wanted to know if it's easy to remove an old tint film and replace it with a new film. I've seen cars around that have enormous bubbles in the rear window and was wondering if they didn't replace it coz the warranty ran out or the old film can't be removed. Thanks for the input.

 
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i think you'll be left with some nasty stick stuff when you remove it. i believe there's a cleaner used to that stuff

 
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Just take it to the place where you originally had it tinted and they should rip it off for you.

 
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I removed tint from one of my windows to re-tint it. I took the big side window out and sprayed it with ammonia. I let that soak for a while and then I got under the tint with a razor blade. Then I sprayed and peeled. It was really hard to get off though. If I didn't have the window off of the car then I would have made a huge mess. After I took the tint off there was still a lot of goo left over. I simply sprayed more ammonia on it and razor bladed it off. You'll need a sharp razor blade to do it right, or you could end up scratching the glass.

If you want to get rid of the tint on the rear windshield, then it's goign to be very tough. The back has those little heater elements baked on and the antenna as well. They stick up a little bit, so a razor blade is not an option. I don't know what to do exactly since I've never done it before, but I would use a heat lamp and ammonia to get that stuff off. You probably won't remove the rear windshield off of the car, so ammonia and a layer of plastic to keep it on the tint should work. Then turn on the heat lamp and let it sit for as long as it takes.

 
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you have to get a corner started and just start peeling it off. after that the window is going to look clear and you think that was easy, until you touch it. it leaves a sticky mess. the best thing i ever used and what my friends use is carb cleaner. use it on a cloth and just keep rubbing. make sure not to get it on door though

 
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Like the last guy said, you can take a razor blade in the corner and the whole thing should just peel off. Depending on the quality of the tint and how long it has been on there if will probably leave a sticky film. You can go to Wal-Mart or any auto parts store like Pep-Boys or Autozone and buy a bottle of remover. I wouldn't recommend using ammonia because it eats away the tint and your a guaranteed a rough time getting it off. If you have access to a steamer that would be your best best. I had some really bad tint when I had my Accord (the tint was actually seperating from the sticky film) and the guy at the tint shop used a steam machine and it just peeled right off.

 
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you need to take it to a tint shop to have it removed. it is harder to take off than to put on (harder, work-wise).

also... 3M is bottom of the garbage pile with automotive films. They make good architectural films, but the auto lines 5UCK!!! .. even a 3M res/com dealer will admit to that.

DO NOT USE 3M AUTOMOTIVE FILM. YOU WILL REGRET IT!!!

A good tinter can make even WalMart film look good at first, but a bad tinter could make the best film look like hell. ~ keep that in mind. You look around for a $95 tint job... that's what you'll get....

 
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sticky stuff left over??...... well i don't guarantee this would work on a car window but it works on every other glass/plastic/metal surface, so i don't see why not....
Nail polish remover. works like a charm at getting stickiness off of almost anything..it's the acetone that's in it. i wouldn't say use pure acetone though cause that's a little harsh. just don't quote me on this yet.. before using it on your car window try it on a tiny section or on another piece of useless glass to test first. shouldn't be harmful at all, but be cautious anyway

 
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Acetone wont work. It evaporates far to quickly... same with the bizzare suggestions you will often here like "use gasoline" "straight ammonia" "propane torch" "low yield nuclear ordinance".....

if you are stripping side glass... strip the FILM off... razor blade under the corner and then YANK... it should come off... then soak the glass down in some water and dishsoap (mixture in a spray bottle) and start scraping with a razor blade... will need several blades per side window.

BACK WINDOW. ON A SUNNY DAY, yank the film off then soak the window down in a mild solvent/cleaner/degreaser like a citrus based cleaner (go to Home Depot for it) or other solvent/degreaser solution. Once the window is coated, cover it (on the inside!) with black trash bags and make sure the back window is facing towards the direct sunlight so it will get hot.

Make sure the window is completely soaked (on the INSIDE). the trash bags (BLACK!!!) will keep the window wet when the window gets VERY HOT (no, it WONT break). If it dries out, soak it again. Keep it wet until the glue will wipe right off. Once the glue is a gooey mess... take some #0000 steel wool and wipe the window off with it. Should come off VERY EASILY. If not.. soak it again. This should involve no effort.. just time.

any further questions please see us at http://www.tintdude.com

I am "windowtint"

 
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forget all that, use carb cleaner like i said

 
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Step 1: spray carb cleaner... inhale deeply.
Step 2: die.

carb cleaner is ETHER

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