It’s tedious and time consuming but can be done yes.ok, I need to reactivate this old post, I need to do something becuase my knock outs are starting to look bad and if peeling out layers gives me a a good look, again I need to do this. Am I understanding the process is to cut into the glass from the inside to be able to peel layers off?
Best tool for the job seems to be an oscillating multi-tool. The inner side of the window has 2 layers of plastic anti-spall.
You’ll want to cut around the edges through the first layer, then heat gun it very carefully and begin to pry it. You’ll know you have too much heat if you start seeing bubbles. Also take care to not cut your heater wires.
Once you’ve peeled the first layer, cut the same depth into the 2nd layer, but don’t go too deep or you’ll start hitting the glass. Be even more careful peeling/heating this layer as you’ll be retaining the gel adhesive portion that remains stuck to the glass.
That final gel adhesive layer may now look cloudy, take a damp paper towel and just wipe it up, should be all clear.
Others may have had luck with peeling that last gel layer as well, but it’s incredibly stuck on. Best bet would be experimenting with some chemicals to dissolve it.
All in all, this is more of a temp solution in my eyes.