Today removed the tint from Yella's back window. I'd read previous posts on the issue, and tried a few of the tips out. Here's how I did it anyway.
Grabbed a razor blade, put a cut in the film to create a groove to get the blade in. First started using just a razor blade, but fingers get pretty sore pretty fast (public servant good for nothing hands). Ended up putting the blade in a pair of pliers, although if you can grab a scrapper that takes razor blades, would work much better (shops were closed by this time). With a handle, you can remove the old tint much faster, and progress is fast.
Others had mentioned adding heat. I just used the heat of the sun in the late afternoon, however I found that (after sun had set) the tinter is much easier to remove when cold. I think adding heat just adds to a gooey mess, I'd advise against that, and work it cold, and in the shade if possible.
The bottom of the rear screen has got to be the most difficult to remove (limited working space), however I found for whatever reason, that my tint was not adhered as well at the bottom. It may have also been that the sun had set by this time and I was working with cool tint, I dunno.
Once you have hit it with the razor, you'll end up with white sticky crap still on the window (the tint glue). Using the pliers, allowing use of more force actually reduced the amount of glue left over compared to chipping away by hand. Grab the Nail Polish Remover (Acetone in disguise), only a little bit, and rub the glue away. Clean window using window cleaner.
Hard work, but if your tint is stuffed, it's just making the car look stuffed anyways. I've never spent so much time on the back seat of a Torana (Brings back memories of many moons ago).
Here's what it looked like before. Photo makes it look better than what it is, it had actually gone milky and had a fair few big air bubbles in it. (Doing a Peter Brock here, but in this case, no trees.)
Here's the end result.
Edited by Yella SLuR, 03 January 2007 - 10:20 PM.