Headlights restoration is a scam - Page 2 - Mazda 6 Forums : Mazda 6 Forum / Mazda Atenza Forum
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post #11 of 16 (permalink) Old 06-15-2018, 01:00 PM
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Anything short of applying a hard-coating material is going to give an inferior result compared to a good factory application. All of them are going to be temporary fixes, of course, but a hard-coat, as opposed to just a clear coat, is going to be a better option if available. That said, I’m not familiar with any real hard-coat solutions on the market in retail channels. I’d love to hear about one if there’s some product I’m not aware of though. Any kind of wax, sealant, polish, etc. I’ve seen on the market are all different and much softer finishes than a hard-coat.

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post #12 of 16 (permalink) Old 06-15-2018, 11:18 PM
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So-called "UV-stable" plastics really aren't -- they're just more-resistant than the ones that aren't stabilized.

UV breaks down polymers over time. Park outside and you eventually have this problem. If the manufacturer uses cheap plastic it happens faster.

You *can* polish off the haze if it hasn't gotten too far into the plastic, but you're not solving the problem, just removing the damaged top layer. The rest is still damaged.

"Coatings" do little or nothing either (well, other than drain your wallet.)

McGuires makes a decent product that works; just be darn sure you don't get it on the paint around the headlamps as it will remove or severely damage the clearcoat too just like it does the hazed plastic on the headlamp! The best option, assuming it can be done with a reasonable amount of work, is to remove the headlamp from the vehicle -- that way you can't accidentally damage the paint.

And yes, it's only good for a year or so, and you get to keep doing it right up until you remove enough material that you wind up having to replace the headlight anyway.
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post #13 of 16 (permalink) Old 06-16-2018, 05:40 AM Thread Starter
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Originally Posted by tickerguy View Post
So-called "UV-stable" plastics really aren't -- they're just more-resistant than the ones that aren't stabilized.

UV breaks down polymers over time. Park outside and you eventually have this problem. If the manufacturer uses cheap plastic it happens faster.

You *can* polish off the haze if it hasn't gotten too far into the plastic, but you're not solving the problem, just removing the damaged top layer. The rest is still damaged.

"Coatings" do little or nothing either (well, other than drain your wallet.)

McGuires makes a decent product that works; just be darn sure you don't get it on the paint around the headlamps as it will remove or severely damage the clearcoat too just like it does the hazed plastic on the headlamp! The best option, assuming it can be done with a reasonable amount of work, is to remove the headlamp from the vehicle -- that way you can't accidentally damage the paint.

And yes, it's only good for a year or so, and you get to keep doing it right up until you remove enough material that you wind up having to replace the headlight anyway.
Where is your proof that meguiar headlights coating damages clear coat?

It's supposed to be a coating that sits on top of the headlights and they say it can be used on new headlights. The coating is not gonna fixed hazed headlights lol is just supposed to protect

Again where is the proof to back up those claims?

There is another version of the coating that can be applied by hand

Maybe you're thinking of the kit where you have to sand and then apply coating. Of course, sanding is going to remove clear coat.

Why would a coating alone remove clear coat. So what about the coatings for paint, do they remove clear coat too? Lol

Last edited by Mazda6Suspension; 06-16-2018 at 05:50 AM.
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post #14 of 16 (permalink) Old 06-16-2018, 05:35 PM Thread Starter
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I thinks dude tickerguy is actually right, this thing actually eats away the clear coat, otherwise, why would they tell you to cover the paint so much? If this Meguiar headlight coating was a protective, like a sealant, wax or paint coating, there would be no need to cover the paint, if anything, it would protect the paint and help it. They tell you to cover it, because it will ruin the paint.

You have to cover the paint, because is not protecting anything, it will gradually eat away the clear coat, this is how it keeps the headlights clear for 1 year. It is gradually removing material, thus preventing the haze and yellow from showing, but just like sanding you can only do it so much before there is no material and the headlight cracks.


Using this stuff on new headlights is a big NO, it would do more damage than good. This should only be used as last resort when your new headlights have finally starting hazing. If anything, you should be putting sealant on them every few weeks to slow down this process and make your new headlights last longer before resorting to using this coating

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post #15 of 16 (permalink) Old 06-16-2018, 10:26 PM
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Yep. Don't do it on new headlights. Use it on ones that are hazed, and expect to re-use it.

Just be DARN CAREFUL not to get it on the paint, and for the love of God make VERY VERY VERY sure whatever you buff the headlight with that has had that stuff applied DOES NOT TOUCH the paint while you are buffing the headlight! This is why you really ought to remove the housing from the car and do it that way - this way you CAN'T damage the paint.

If you ever compounded an old car (when they were painted with enamel) you understood what you were doing because you could see the color on the rag. Same with "compounding" gelcoat on a boat. Yes, it does "restore" the gloss -- by removing the damaged layer! That works just fine until there is no more "layer" to remove.....

You can try to use some sort of plastics-safe wax on new headlights if you want but frankly I don't think you're going to get much in terms of actual longevity improvement out of it.

Last edited by tickerguy; 06-16-2018 at 10:31 PM.
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post #16 of 16 (permalink) Old 06-17-2018, 08:00 AM Thread Starter
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I just put Meguiar liquid wax which is a sealant/synthetic wax on the headlights. I do this every 2 weeks. It's better than nothing.

I should get at least 3 years of good headlights before they start hazing, which by then I would just use this meguiar coating

Meguiar has a cream version of this keep clear coating though. It is the same coating but in cream. You cannot buy it by itself. You buy it with their restoration kit.

This is ideal and not the spray version.
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