24 year old headlights. FWIW I got pretty good results by wet sanding with 1500 then 2000. I sanded with the 2000 a good long while, back and forth. Then used polishing compound on a foam pad. Topped with a coat of Mother's Back to Black. Edit: They actually look almost new.
I used to use Novus plastic polish - the same stuff you use on an NA Miata vinyl rear window - to refresh the lights on my 2000 Tundra. Took just a few minutes with a microfiber cloth and nothing else. Probably had to do it every two years, I suspect a UV protectant finish had failed. Boy, did it make a difference.
The WJ Jeep, though, fogged on the inside. Nothing you could do.
In reply to Keith Tanner :
Just Googled "Novus plastic polish" and saved the link 
It's good stuff to keep around and lasts forever. My bottles are from the 90s :)
Are we talking about a kit like this?
Or just one of the bottles?
Automotive clear coat is a good UV protector. Sand away all the yellowed sun damaged plastic. Final sand to something like 320 or 400 and spray. The SprayMax 2k cans are pretty handy for this.
Automotive clear coat is a good UV protector. Sand away all the yellowed sun damaged plastic. Final sand to something like 320 or 400 and spray. The SprayMax 2k cans are pretty handy for this.
I used the 3M kit last week on my car, worked fairly well but then I tried to install the smoked Laminex kit over them for protection. Turned out horrible. I let it sit 3 days to hopefully mellow out and look better but it did not so I removed it.
Brett_Murphy (Agent of Chaos) said:Are we talking about a kit like this?
Or just one of the bottles?
Missed this question last fall.
Depends on how aggressive you need to be. They're basically different grades of grit. I have all three but I rarely have to go to #3.
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