Just finished restoring my headlights, as they were both peeling.
I used this kit
Amazon.com: 3M 39008 Headlight Lens Restoration System: Automotive
Getting the old film off a headlight is time consuming and I used all eight P500 sanding pads in the kit, even with constantly vacuuming the dust off them to reuse them. I don't see how one could get the old film off with just four of the pads.
Then I used three of the four P800 pads on the first headlight. Then the P3000 foam disc (you use it wet). Finally the foam compounding pad with the wet polish paste. At each step, I estimate I went over the entire headlight surface at least 15 times, moving slowly (but not too slow) and applying moderate pressure.
After 4 hours of work on one headlight I had completed all the steps. I cleaned it off and was not impressed with the result. Too many fine scratches, and a very slight haze. I would need to start over. But I had no more P500 pads. So I ordered a box of 50 from Amazon, and also ordered a box of 50 P800 pads (couldn't find a smaller quantity box).
New pads arrived several days later, and I went through the entire procedure again, taking about 2 hours. Since the old headlight film was gone, the first step with the P500 pads took much less time. Completed all the steps, cleaned the headlight, and decided it was slightly better. But comparing it to the untouched headlight, the refinished headlight was not nearly as clear. It looked good from 6 ft away but up close it was in no way comparable.
Still, it was better than the "peeled" look. So I went ahead and did the other headlight. Now that I had a large supply of P500 and P800 pads I didn't bother to try to clean and reuse them, I used a pad on about half the headlight surface and then replaced it with a new pad. I ended up using about 25 P500 pads and 5 P800 pads. Then the P3000 foam pad and then the foam compound polishing pad.
After completing the second headlight, it looked essentially the same as the first headlight. Good, but not great, and definitely not "like new".
Now I need to protect the headlights with new film. Any recommendations? Any come pre-cut?
So total cost was about $65. Was the 8 hours I spent (over two days) worth the effort? I suppose. But I was hoping for a "like new" appearance.
Here are photos showing a completed headlight with blue tape around it (going through the process twice) and for comparison an untouched headlight. Photos don't really show the difference clearly.
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