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Question about re-clear coating headlight lenses

 
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  • 2 Post By rob302
  • 1 Post By _PTGT03

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Old 05 Apr 2018, 10:30 am
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Default Question about re-clear coating headlight lenses

Hiya PT brethren and sistren,

So, about a year or so ago I got a brand new set of headlights with black interiors for my PT as a gift from a friend. Before installing them, I wet sanded the lenses, then sprayed them with a clear, UV resistant clear coat which was made for use with plastic.

As of today, the passenger one looks as good as new. The driver's side, however, has peeled off on about half the lens. I'm not sure why, as I prepped both lenses the same way and used the same spray on them.

Regardless, I want to redo the driver's side lens. What do I do about the clear coat that's still on the lens? I assume I have to wet sand that all off, then re-wet sand the entire lens, and then spray it again? Does that sound right?

Thanks, guys. You're always a big help.
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Old 05 Apr 2018, 10:50 am
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Default Re: Question about re-clear coating headlight lenses

that is correct. if you use chemicals you'll have a gooey mess in your hands. i've done it both ways. i have used lacquer thinner to remove the clear. sanding is more elbow grease, but is less nasty and also less stressful.

i would guess you applied the clear to the one light too thin and that is why it's coming off, or you didn't give it a super light coat before applying a wet coat.
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Old 05 Apr 2018, 11:03 am
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Default Re: Question about re-clear coating headlight lenses

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Originally Posted by rob302 View Post
that is correct. if you use chemicals you'll have a gooey mess in your hands. i've done it both ways. i have used lacquer thinner to remove the clear. sanding is more elbow grease, but is less nasty and also less stressful.

i would guess you applied the clear to the one light too thin and that is why it's coming off, or you didn't give it a super light coat before applying a wet coat.
Thanks, Rob. You're always a big help.
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Old 05 Apr 2018, 09:48 pm
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Default Re: Question about re-clear coating headlight lenses

use a scotch brite pad and take out the coating and feather the edges of the peeling until it's smooth.
did you apply a prep solvent before spraying the coating ? something must have got under there
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Old 06 Apr 2018, 11:07 am
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Default Re: Question about re-clear coating headlight lenses

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Originally Posted by _PTGT03 View Post
use a scotch brite pad and take out the coating and feather the edges of the peeling until it's smooth.
did you apply a prep solvent before spraying the coating ? something must have got under there
The peeling started out as a pinky nail sized area, and is now about half the headlight, so I'd prefer to just remove it all and start over.

Yup, after wet sanding the lenses, then wiping off all that gunk with water and a lint free cloth, I then used alcohol to wipe everything down prior to spraying the clear.
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