Headlight restoration kits!

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I don't think anyone would ever get satisfactory answers to 'what's the best...?' type of questions.

Anyway: Here are amazon's best sellers in the category:
http://www.amazon.com/gp/bestsellers/automotive/2687788011/ref=pd_zg_hrsr_auto_2_3_last

3M seems to have the most popularity and positive reviews right now: (needs a drill) (have no personal experience)
http://www.amazon.com/3M-39008-Headlight...ds=3m+headlight

I have had good but temporary results with Crystal View (lasts about 6-7 months)...(less involved than the 3M but probably lasts shorter - can be done by hand though):
http://www.amazon.com/Crystal-View-Chemi...+view+headlight

My experience with the CV product:
https://bobistheoilguy.com/forums/threads/cleaned-foggy-elantra-headlights-this-time.91051/
 
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The wetsanding approach seems to have nearly 100% success, but you have to continually keep them waxed or sealed since wetsanding removes factory anti-UV coatings. You could also have clear bra put over the headlamps afterwords too.
 
I use Mothers powerball and it usually lasts about a year.

It's actually best to clearcoat it with 2K Urethane after minimal buffing but I never did it. The 2K clearcoat is supposed to make it lasts for several years. I guess I was too lazy to spray.
 
All the kits are basically phase 2. Phase 1 is 1500-2000 wet sanding. Then use the kit if you want, or just buff it. Check youtube for "DIY: Polishing Your Foggy Plastic Headlights". Explains it better. I've done maybe 20 so far, some are 3 years old and still look good.
 
Colgate makes a good one crest does to. Yes toothpaste works very well. Try it its cheap.
 
Originally Posted By: mikered30
Just about any headlight kit will clean, the problem is keeping it from yellowing.


As I said, you need to wetsand (remove all the pitting/scratches/oxidation) and then apply something like a clear bra, Xpel, or LaminX. Those are anti-UV.
 
I replaced headlights with aftermarket new ones 3+ years ago,the replacements are clear and still like new.No potmarks either.Very good light pattern as well...I wouldnt do a quick fix and try to buy 6 months on worn out headlights.These $20-50 kits are basically money poorly spent.Save the money for new assemblies and enjoy 6-8 years of good lights.
 
I think NHGUY might have a point.
I used the rain-x kit, worked okay but needed something better. So I used a kit from autodetailingsolutions which used meg's products plus wetsand. Used the coating solution from the rain-x kit. Worked well but does not last even when waxed. I have not tried recoating with urethane, however.
 
The Turtle Wax kit is about $10, easy to get. You need a couple of levels of abrasiveness. Which it has. And the new kits I believe have a sealer. I myself would avoid a power driven one until I have gotten some experience. Given multiple levels of abrasiveness, not sure power is needed. You may end up doing it and then in a month decide to do it some more. Need to look at it from different angles to get a good idea.

Can you feel the sun damage with your finger? Of just notice it looking?
 
Originally Posted By: joaks
I think NHGUY might have a point.
I used the rain-x kit, worked okay but needed something better. So I used a kit from autodetailingsolutions which used meg's products plus wetsand. Used the coating solution from the rain-x kit. Worked well but does not last even when waxed. I have not tried recoating with urethane, however.


I agree if you can get good quality replacements. I chose to go replacement for a Mustang and the fit was OK but the quality wasn't there

For my Wife's caravan I just did a progressive sanding of 5-6 grits and then a polish compound and an orbital buffer. I then used the the clear sealer in the Duplicolor Headlight kit.

As others mentioned it's easy to get them cleaned up but hard to protect. I tested the Krylon Clear UV coating and the Duplicolor (from the MSDS it's a Sherwin Williams clear). The Krylon didnt hold up to UV well.

Surprisingly few DIY inexpensive UV clears
 
Check out the new Mother's restore kit. For $20 it comes with 2 pads, each side has a different grit for sanding. It's meant for horrible housings, but I can't tell you how long it will last as I just did it last week.
 
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