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PPF on headlights or not?

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Old 06-18-2020, 12:04 AM
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992Sam
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Default PPF on headlights or not?

Curious for those of you doing PPF on your 992s... anyone skipping the headlights? or are you having them done?

Reasons why if not would be much appreciated.
Old 06-18-2020, 12:17 AM
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There is much debate on this topic. If you cover them you run the risk of delamination if/when you remove the film. If you don’t your expensive Porsche headlights will be damaged due to rock chips and impacts while driving. I am in the cover them camp.
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Old 06-18-2020, 12:19 AM
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992Sam
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Originally Posted by Carrera-T
There is much debate on this topic. If you cover them you run the risk of delamination if/when you remove the film. If you don’t your expensive Porsche headlights will be damaged due to rock chips and impacts while driving. I am in the cover them camp.
the delimitation thing is what I was worried about too but it doesn't make sense... if you apply heat and do a proper removal, that seems like a non-issue. curious if anyone has actually had this delimitation happen on their later model 911's.
Old 06-18-2020, 12:21 AM
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Always PPF the headlights.

Yes, there is a risk delamination.

But consider the alternative. Leave the headlights uncovered, and you will get pockmarked headlights.

So what's the choice? A risk of delamination versus guaranteed pockmarked headlights?

And there is only a risk of delimaination if you remove the PPF from the headlights. Now ask yourself why you would ever remove the PPF? Especially if it's done right the first time. And if you do remove it, and there is delamination, just simply reapply the PPF and the delamination becomes a non-issue.

So, again, consider the choices, and the downsides to both.

I know which choice I would go with.
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Old 06-18-2020, 12:24 AM
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Watch here starting at 13:12.

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Old 06-18-2020, 12:41 AM
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992Sam
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So at about 14:00 into the video he talks about how if the PPF is on for 3-4 years, the risk is higher... maybe the prudent thing is to replace it every year or so preemptively? Is the delaminaton something that can be repaired, or does one need to replace the entire light if that happens?
Old 06-18-2020, 01:02 AM
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Once the delaminate that’s it. Some of the more modern film does not have super strong adhesive. Matt is removing XPEL in favor of SunTek which they say is safer on headlights and more optically clear.
Old 06-18-2020, 01:07 AM
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992Sam
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Originally Posted by Carrera-T
Once the delaminate that’s it. Some of the more modern film does not have super strong adhesive. Matt is removing XPEL in favor of SunTek which they say is safer on headlights and more optically clear.
Good to know, apparently my guy used Suntek for my headlamps
Old 06-18-2020, 01:30 AM
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Originally Posted by Carrera-T
Once the delaminate that’s it. Some of the more modern film does not have super strong adhesive. Matt is removing XPEL in favor of SunTek which they say is safer on headlights and more optically clear.
That's not true.

You can simply refinish the headlights. The headlights will first need to be sanded with sand paper, compounded, and then polished back to a clear OEM "look". A good detailer and PPF installer can do this with no problem.
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Old 06-18-2020, 01:31 AM
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Originally Posted by ipse dixit
That's not true.

You can simply refinish the headlights. The headlights will first need to be sanded with sand paper, compounded, and then polished back to a clear OEM "look". A good detailer and PPF installer can do this with no problem.
curious, what exactly delaminates anyway? Is it a clear coat? or the plastic itself?
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Old 06-18-2020, 01:35 AM
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Originally Posted by 992Sam
curious, what exactly delaminates anyway? Is it a clear coat? or the plastic itself?
Yes.

The factory OEM clear coat fails. In the case of PPF, the adhesive on the PPF during removal peels off the clear coat.
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Old 06-18-2020, 01:42 AM
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Ok guys, here’s my thoughts on this. I know it’s been discussed many times.

if you don’t cover the lights , they will definitely get pitted and chipped. If you do cover them, there is a chance they might delaminate on ppf removal.

we are weighing definite damage against possible damage.

I think Matt had the Ppf on his .2 RS replaced with Stek Dynoshield not Suntek or xpel. Stek dynoshield has far less aggressive adhesive than xpel.

if you use a lot of steam and go slow, I think there is decent chance you can remove the film without damage.

Delamination of the lights removes the top UV coating. Sanding it down, polishing , and replacing with new ppf might look ok but it is not the same as the factory finish.

I am in the cover them camp, but I do so knowing I will pay a large bill if the lights delaminate.

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Old 06-18-2020, 01:45 AM
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Originally Posted by rhr992c4s
I am in the cover them camp, but I do so knowing I will pay a large bill if the lights delaminate.
cool good info.. so two questions.

Is the risk lower if I remove and replace it frequently (say every 1-2 years) rather than allow it to sit for 5+ years?

And.. If it does delimitate.. is it repairable by a pro-body shop with UV, clear coat etc.. or do you really need to replace the entire fixture as some are saying?

Old 06-18-2020, 01:56 AM
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Tough and thoughtful questions.

i think the risk of damage is less if the film has been on for less time. The problem is if you replace it frequently , then you are pulling film more often and that increases risk. I don’t know what the answer is, probably keep the film for at least 2 to 3 years and no longer than 5, but that is gut feeling.

I don’t think the factory coating can be replicated. It comes down to whether knowing your lights have been sanded bothers you. I have OCD and like to keep things original.
Old 06-18-2020, 01:59 AM
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Originally Posted by rhr992c4s
Tough and thoughtful questions.

i think the risk of damage is less if the film has been on for less time. The problem is if you replace it frequently , then you are pulling film more often and that increases risk. I don’t know what the answer is, probably keep the film for at least 2 to 3 years and no longer than 5, but that is gut feeling.
Makes sense...

I don’t think the factory coating can be replicated. It comes down to whether knowing your lights have been sanded bothers you. I have OCD and like to keep things original.
you and I are very much alike that way... would bother me a lot, but less so if it was impossible to tell it was done I suppose.


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