Ever since I bought my clear corners, I was not happy with how nasty my headlight capsules looked next to them. They were old and pitted from years of highway driving. I wanted to restore them to make them look at least fractionally better. I know they will never look as good as my corners or new capsules, but it sure beats spending 100 bucks for a new set.
This is what one of them looked like beforehand:
This is what they looked like after I was done:
This is what I did:
Before starting I used masking tape to protect the paint.
1.) Wet sand with 800 grit sandpaper for about 5-10 minutes. Wipe clean. It will look hazy, but it will progessively go away with finer sanding.
2.) Repeat with 1000 grit. Wipe clean.
3.) Repeat with 1500 grit. Wipe clean.
4.) Use 2000 grit, but spend about 15 minutes on the lamp. This step is crucial.
5.) Wipe off all the residue as best as you can.
6.) Use Polishing Compound (I used Turtle Wax brand) and cake it on the lights and buff it in as best as possible. This will remove all of the haze if sanded properly.
7.) Apply plastic polish. I used Megiuars PlastX.
My arms are tired after doing this to both lights, but it was worth it. 10 bucks of supplies vs. 100 bucks of new capsules is a no brainer.