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#4669964 - 02/18/18 04:28 PM Head light lens haze
Bronco1 Offline


Registered: 01/06/17
Posts: 137
Loc: Colorado
The headlights on the wifeís Honda Fit are really bad in terms of the haze on the lenses. Iíve used one of the kits (I think it was Meguiarís) a couple of times but itís pretty short lived. I saw a video where the guy uses successive wet sand paper passes and then spraying them with clear coat. Anyone have any experience with doing this? I really donít want to make them worse.
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#4669971 - 02/18/18 04:39 PM Re: Head light lens haze [Re: Bronco1]
Trav Offline


Registered: 11/20/06
Posts: 18903
Loc: MA, Mittelfranken.de
This may help you, I posted the pictures again at the end. Any questions just ask or PM me.

https://www.bobistheoilguy.com/forums/ub...ts_#Post3913466
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#4669973 - 02/18/18 04:40 PM Re: Head light lens haze [Re: Bronco1]
Motorsen Offline


Registered: 06/27/10
Posts: 14
Loc: Denmark
Polish them with rubbing compound. I would recommend Farecla G3 with a 3M lambwool buffing pad. Might preserve them with a quality wax afterwards.

Motorsen

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#4669988 - 02/18/18 04:51 PM Re: Head light lens haze [Re: Bronco1]
DeafBrad Offline


Registered: 05/10/16
Posts: 236
Loc: WA
If you still have some Meguiarís left, maybe use it to get the haze off. And then keep it waxed. That haze is oxidation... the plastic is rusting if you would.
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#4669997 - 02/18/18 05:01 PM Re: Head light lens haze [Re: Bronco1]
mclasser Offline


Registered: 04/13/13
Posts: 2233
Loc: The Northeast
I've had the same issue for a while now. I just polish & wax the headlights every 6 months. Eventually, I may just cave and get new lenses.


Edited by mclasser (02/18/18 05:01 PM)
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#4670010 - 02/18/18 05:13 PM Re: Head light lens haze [Re: Bronco1]
atikovi Offline


Registered: 04/27/10
Posts: 249
Loc: Suburban Washington DC
Originally Posted By: Bronco1
I saw a video where the guy uses successive wet sand paper passes and then spraying them with clear coat. Anyone have any experience with doing this?


Yes, you need to sand off the haze to get to solid plastic. Using a rubbing compound for that would take a long time and likely overheat the plastic. I use the 3M kit https://www.walmart.com/ip/3M-Company-3M...13=&veh=sem followed by their clear coat https://www.newegg.com/Product/Product.a...mp;gclsrc=aw.ds

Honda Insight


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#4670044 - 02/18/18 05:41 PM Re: Head light lens haze [Re: Bronco1]
E365 Online   content


Registered: 12/16/07
Posts: 454
Loc: USA
Iíve had great luck with the 3M kit. You can also buy the wet sanding paper separately and do it by hand. But the drill attachment and circular sanding pads with the 3M kit make it pretty convenient.
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#4670046 - 02/18/18 05:43 PM Re: Head light lens haze [Re: Bronco1]
Bronco1 Offline


Registered: 01/06/17
Posts: 137
Loc: Colorado
Thx all!
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#4670142 - 02/18/18 07:14 PM Re: Head light lens haze [Re: Bronco1]
funflyer Offline


Registered: 06/26/14
Posts: 693
Loc: Northern Arizona
Clearcoat is the only way to go if you don't want to repeat polishing them every 6 months or so. These were from my 05 Prius. I also did my 01 Tacoma lenses 2 years ago and they still look brand new. They were wet sanded up to 2000 grit and shot using automotive urethane.


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#4670150 - 02/18/18 07:20 PM Re: Head light lens haze [Re: Bronco1]
Dave9 Offline


Registered: 08/28/17
Posts: 188
Loc: Cincinnati, USA
Sandpaper is only needed for a 1st-time, bad state.

Touch up, if you waited too long you can use rubbing compound with plenty of water. If using a motorized tool, move it around a lot so you don't build up heat in one spot.

Next use plastic polish, or if you have a motorized tool and move it around a lot, even toothpaste can work.

Finish with wax or wax-type sealant. I do not recommend a spray on paint-like sealant. It will last a bit longer but still need done again then you have to strip all the sealant off which is more work in the long run.

Periodally touch up the finish. For example when washing the vehicle put a few dabs of toothpaste on a rag and wipe the lenses down.

If parked for several hours a day exposed to sunlight, try to park in a direction with the headlights facing away from the sun. This can also make your wipers last longer.

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#4670163 - 02/18/18 07:31 PM Re: Head light lens haze [Re: Dave9]
krismoriah72 Offline


Registered: 02/16/09
Posts: 1519
Loc: wv
Not highjacking the thread..but i was in walmart the other day and they had a little display that said they restore headlights there...the display was old and not sure if its a service they offer anymore. I didnt follow up on it. No idea of price either i guess that part fell off the display.

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#4670391 - 02/18/18 11:04 PM Re: Head light lens haze [Re: funflyer]
El_Vato Offline


Registered: 10/23/09
Posts: 62
Loc: Colorado Springs, Colorado
Completely agree on wet sanding and using clear coat.

Recommend using 2K clear, not the regular stuff you can find at the local auto parts store.

You can buy a can of 2K for about $20ish a can.

https://www.amazon.com/gp/aw/d/B0043B7UQ...&ref=plSrch

But realize is contained isocyanites, quite harmful if you donít use a respirator.

It works wonders, as this is the real deal clear coat...but be careful.

Does it last? Yep, my 2004 Sequoia is going on three years post clear and they still look clear.




Edited by El_Vato (02/18/18 11:10 PM)
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#4670571 - 02/19/18 08:11 AM Re: Head light lens haze [Re: El_Vato]
cjcride Offline


Registered: 11/06/09
Posts: 1815
Loc: Ontario Canada
Originally Posted By: El_Vato
Completely agree on wet sanding and using clear coat.

Recommend using 2K clear, not the regular stuff you can find at the local auto parts store.

You can buy a can of 2K for about $20ish a can.

https://www.amazon.com/gp/aw/d/B0043B7UQ...&ref=plSrch

But realize is contained isocyanites, quite harmful if you donít use a respirator.

It works wonders, as this is the real deal clear coat...but be careful.

Does it last? Yep, my 2004 Sequoia is going on three years post clear and they still look clear.


That looks like the best topcoat. The manufacturers should coat new headlights with the stuff.
I guess a lot of owners get rid of the car before the haze becomes a big problem.

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#4670676 - 02/19/18 09:48 AM Re: Head light lens haze [Re: cjcride]
wag123 Offline


Registered: 06/14/11
Posts: 887
Loc: Texas
2K is the best clear coat product to use on headlights.
Something else that also works and is not as dangerous for a DIYer to use is Krylon K02444007 'Fusion for Plastic' Aerosol. https://www.amazon.com/gp/product/B001TNMWBM/
It is not as good as the 2K but I have gotten pretty good results with it. Before you apply it you will need to wet sand the headlamps with 1000 grit sand paper (don't polish them afterwords) and after it dries you will need to wet sand with 2000 grit sand paper and buff it out with rubbing compound. I applied it to a couple of headlights 2 years ago and they still look good.

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#4689186 - 03/08/18 09:26 PM Re: Head light lens haze [Re: El_Vato]
David2431 Offline


Registered: 01/28/18
Posts: 52
Loc: Missouri
What about using it on lenses that haven't yellowed yet to keep them new looking?

Have a 2014 RAV4 that has lenses still looking new.

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