Headlight Restoration
11-23-2021, 02:57 PM
#16
I've done my own headlight restorations on many cars over the years (I use 1500 & 3000 grit wet sandpaper, followed by rubbing compound then polish) and what has worked best for the final coating and in my experience has lasted at least 2 years after application is a 50-50 mix of Helmsman Spar Varnish and Mineral Spirits. Mix it up and apply with a blue shop towel as your brush. Brush it on evenly and uniform. It dries perfectly clear and since it is a marine spar varnish it has superior UV protection. Slow and easy is the key but results are typically better than most aftermarket UV coatings.
11-24-2021, 12:06 AM
#17
you really need to seal the lens after any treatment, and even the most careful job will leave some low and high spotting on the original lens. I had a shop restore mine and they basically finished it with clear coat, which has not changed in two+ years.
11-24-2021, 01:10 AM
#18
After mine suffered from a Mojave Desert sandstorm they were polished and painted with a 5% black coat for UV protection and to hide any remaining blemishes. That surface has suffered some rock chips since but is holding up well otherwise.
11-24-2021, 10:56 AM
#19
Burning Brakes
I just used the 3M #39195 Ultra Headlight Restoration Kit on our 2009 Cayenne and had similar results. And I checked the price of an OEM headlight shell----$1609 each. Oh no.
2008-2010 Porsche Cayenne Headlamp Assembly 958-941-030-G | Delaware Porsche Parts
2008-2010 Porsche Cayenne Headlamp Assembly 958-941-030-G | Delaware Porsche Parts
Last edited by Ericson38; 11-25-2021 at 11:34 PM.
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myw (11-24-2021)
11-24-2021, 08:59 PM
#20
Rennlist Member
My wife's Lexus headlights are beginning to cloud. They aren't bad so I put on a high quality polish (can't remember what brand, just make sure it's compatible with plastic). Even that restored them fairly well without an abrasive treatment. The Lexus dealer recommended the 3M kit. Pretty sure that includes a protective clear coat.
11-24-2021, 10:39 PM
#21
Burning Brakes
My wife's Lexus headlights are beginning to cloud. They aren't bad so I put on a high quality polish (can't remember what brand, just make sure it's compatible with plastic). Even that restored them fairly well without an abrasive treatment. The Lexus dealer recommended the 3M kit. Pretty sure that includes a protective clear coat.
11-25-2021, 08:16 PM
#22
11-25-2021, 11:29 PM
#23
Burning Brakes
03-10-2022, 12:51 PM
#24
Rennlist Member
I hate to resurrect this thread but I’m concerned about frying the frunk module. Can someone confirm that simply disconnecting the battery is enough? Thanks!
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cdemarco4143 (03-10-2022)
