How to Restore Headlights PERMANENTLY

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Recommends Pᴀᴜʟsᴛᴇʀ2 · 2015-10 · Motor Vehicle Maintenance & Repair Stack Exchange · on “Headlight sealant?”

As @Zaid said for the reasons for yellowing/clouding is spot on: UV rays. As for the fix, I would do it slightly different. First, you can use toothpaste to clean off the lens. This works to a degree, but to do the proper fix, take the wet sanding approach. Start by using a heavier grit wet sand paper, then use progressively finer wet sand paper. The idea is to get rid of the yellow, then get rid of the marks left behind by the coarser sand paper. With that in mind, you'll next want to protect your new covering. By using a UV protected clear coat out of a spray can, you can completely cover the lens (even the parts which may be hidden) and not have to worry about it for another 5-8 years. Th

Recommends Pᴀᴜʟsᴛᴇʀ2 · 2016-06 · Motor Vehicle Maintenance & Repair Stack Exchange · on “Sealing / effectively preserving restored headlights”

The best way to keep them looking good is to utilize clear spray lacquer which is is not affected by UV. UV light is what causes the cloudiness in the first place. By spraying the clearcoat on there, you effectively protect the lense from the harmful UV rays. After you get through sanding the lense down, throw several light coats of the clear, then follow up with a thick coat (not enough to run, but thicker than the rest). This will give you durability so you won't have to do it again any time soon. Do this without ever letting the first coat dry completely, so only a 8-10 minutes dry time between. There are plenty of videos on YouTube for it ... in fact I think ChrisFix [this video] has a really

Recommends apkisbossin · 2017-05 · Motor Vehicle Maintenance & Repair Stack Exchange · on “Should I clearcoat my headlights after sanding and polishing them?”

You can buy a non yellowing clear coat for plastics that will keep it from yellowing. Video describing how to do it [this video] Non Yellowing Clear coat paint [LINK]

Recommends NitrusInc · 2018-03 · Motor Vehicle Maintenance & Repair Stack Exchange · on “Dim low beams on 2007 toyota camry bulbs brand new”

While it's going to be awfully subjective in what method people will agree with, it's highly likely that your headlamp assemblies need to be refinished. I can link a few different sites, like This Popular Mechanics Article here [LINK] or a [this video] but it's likely best you just visit a well-reviewed local Autobody shop. The cost of having Headlights refinished professionally, is generally about 1/3-1/2 the cost of buying one headlight. From this point you'll be able to determine if it makes more sense to simply purchase new headlights, or have them refinished. If you do chose to refinish them yourself, make sure you plan accordingly. Give yourself a good amount of time to complete the project

Cites Robert S. Barnes · 2017-06 · Motor Vehicle Maintenance & Repair Stack Exchange · on “Problem with clear coating headlights”

I followed a procedure to clean up my oxidized headlights similar to that which ChrisFix recommends in his video on the subject [this video] . The last step is to clear coat the headlight with a product like Rust-Oleum American Accents Ultra Cover 2x [LINK] , which he used in his video and I also used. My procedure differed slightly in that I had already polished the headlight with McGuire's M100, so it was already clear and I was just adding the clear as anti-UV and yellowing protection. I put two think coats, and after I let it dry for about 40 hours, I looked at it and had some orange peel and running so I decided to add a few more layers then wet sand and polish it. However , when I went to c