How to un-yellow lights? - Ford Powerstroke Diesel Forum
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Old 06-18-2014, 11:13 AM
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How to un-yellow lights?

I was wondering how you guys clean your lights and un-yellow them. My 3rd brake light, head lights and fog lamps are a bit yellowish and I wanna make them shine like new without buying new lenses. Any ideas?
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Old 06-18-2014, 11:24 AM
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Are they foggy?

I know you can hit them with 1000 grit sand paper while they're wet, rinse, hit with 1500 grit, rinse, and then hit it with a rubbing compound. After applying the rubbing contact, buff it with a cloth.

There's also a method involving an oven.
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Old 06-18-2014, 12:16 PM
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Buy new ones, they aren't that expensive given the PIA it is to sand and polish the old ones just to have them yellow again in a couple months. I know because I tried to do my head lights which didn't come close to being as good as new and didn't last. Get new and get another decade out of them. My new head lights were under $100 and one of the better rated 3M polish kits is over 20, plus whats your time worth.
gentimmy likes this.
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Old 06-18-2014, 12:21 PM
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Quote:
Originally Posted by Montstroke View Post
Buy new ones, they aren't that expensive given the PIA it is to sand and polish the old ones just to have them yellow again in a couple months. I know because I tried to do my head lights which didn't come close to being as good as new and didn't last. Get new and get another decade out of them. My new head lights were under $100 and one of the better rated 3M polish kits is over 20, plus whats your time worth.
yea...this is definitely the better route

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Old 06-18-2014, 01:04 PM
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I figured as much. What about smoking the lights? Would that be a route to take or would the lights have to be un-yellowed first?

Also do you guys know where I can get the fog lamps from?
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Old 06-18-2014, 02:47 PM
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There is a bunch of info on the interweb about dying them in boiling water and Rit, cloths dye and other schemes. Seems though all of them didn't last or hold up to the sun well. I would think tinting yellowed/fogged plastic would be crap, maybe your third brake light. Not sure smoking headlights is legal, though I'm not a fan of the government telling me what I cant do, so that's up to you. You might need to pull them apart and then reseal them, fogs too.

Fog lights on Amazon......along with EVERYTHING else....in the world.
Parts Geek too, I've had good luck with them as well.
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