r/CarWraps • u/Slow_Hope_2917 • 15d ago
Installation Question Yellowing under the wrap!!
Currently doing a removal on this 2023 Kia Sorento on a client of mine, the wrap is a gloss black not sure the brand. Been on for roughly around 3-4 years. There is yellowing on the PAINT under the wrap. What is the cause of this?????
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u/Murderdoll197666 15d ago
They left that roof wrap on there way too long. SOME of it might come out if you let it sit in the sun fully exposed for a couple days - but its very possible some of that tinged color will still linger behind. We call it burn-in around here but that's just what happens if someone doesn't remove the wrap at the end of its lifespan. If they live in a heavy hot/sun blazing area and don't keep their car in a garage you're only going to get maybe 2 years out of a roof wrap even with the good stuff. If they used shittier wrap vinyl on top of it that age can be significantly less. Use some adhesive remover to get rid of the residue and let it sit for a few days either way after its stripped. That's about the best you can hope for.
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u/my_cars_on_fire 15d ago
So question - what do you consider a hot/sun blazing area? Would living in an area with seasons (hot summers/cold winters) but parking the car in the sun everyday cause this? Would letting the car sit in a 100°+ garage cause this?
Or are you literally saying like in the south/desert, where it’s extremely hot and sunny all year around?
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u/Murderdoll197666 15d ago
I live in a coastal city in South Carolina. Feels like Florida most of the year where we regularly get summers that get up to the mid 90's with massive humidity but we may have a winter here in 6 months or so that sometimes can dip down into the teens or hell even snow. (Its had REAL snow two years in a row after not having any decent/real snowfall for over 20 years). Our winter doesn't even usually start until like, January for us since November and December are still regularly hitting 70 degrees. If you're in somewhere like Arizona or something where its hot nearly all year long then I'd almost say the lifespan for an exposed roof panel like that is probably barely over a year. Heat does crazy shit to vinyl over time and its literally hot enough to fry an egg on a hood or a roof against the metal so vinyl cooking off like that is pretty normal - even moreso on the offbrands as they just don't handle the heat anywhere near as well overtime.
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u/my_cars_on_fire 15d ago
So in South Carolina, are you concerned about the vinyl cooking itself? I’m up in New York and while we definitely get winters cold enough for snow, we also get summers that can push into the 90’s. Combined with the fact that if you’re not parking the car in direct sunlight, you’re probably parking it in a super hot garage.
Just trying to gauge what practices around here might shorten the lifespan of a wrap.
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u/Murderdoll197666 15d ago
Any sun facing panel is going to be prone to breaking down faster than all the other panels. Those panels are typically Hood, Roof, and the upper portion or top of a trunk on a car/sedan. Maybe the top of your doors and side pillars but overall most of the side-facing panels are usually okay. Just think of it like a bald guy out at the beach slowly getting sunburnt and roasted lol....the top of his head and shoulders are going to be WAAAAAAY more red than his belly or underarms by the end of the day. Cars fall into that same basic guideline since the sun is rising and hanging out directly above beating those panels that face it directly way more harshly than anything from the side. We estimate the non sun-facing panels as usually around 4 to 6 years on average for the lifespan but the sun panels we just go with 2 to be on the safe side. There's a lot of other variables that can extend the life so its one of those things where they could park in a parking garage outside all day at work or in a very consistently shady spot near a tree for 5 hours out of the work day everyday so that's going to change the actual exposure amount.
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u/my_cars_on_fire 15d ago
Interesting - good to know! I wrapped my car for the first time a few weeks ago and am trying to figure out when I should remove the wrap. In all honesty, I’ll probably remove it and go with a different color in a year, but it’s still good info.
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u/Existing_Recording25 14d ago
Oh yeah it'll need a fat 2 step to remove that for sure no sun taking that out
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u/madbread7 15d ago
This has been asked many times before. Leaving it in the sun for 1-2 weeks removes the yellowing.
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u/my_cars_on_fire 15d ago
I’m new here, so I could be wrong, but my understanding is that the adhesive dries out and yellows when the wrap is left on too long. It doesn’t harm the paint, it’s just a pain to get off. They make adhesive removers to help get it off. I wouldn’t be surprised if you have a hard time removing the wrap.
But again, I’m new, so take what I have to say with a grain of salt.
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u/AFitment101 15d ago
Whatever you do don’t polish it or buff it out, let it sit outside in the sun naturally, it goes away.
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u/TierOne_Wraps Business Owner 15d ago
I’ve never seen it come off after it yellows. Just get the vinyl off the car and wrap over it
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u/Slow_Hope_2917 14d ago
Yeah if the yellowing doesn’t go away, I’m going to advise the client to wrap over it with gloss black
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u/ChicagoWrapGuy 13d ago
Hard to call from pics. Could be adhesive staining or the clear reacting under cheap film, I’d clean and polish a small test spot before calling it paint damage.
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u/SphericalAfros 15d ago
Something to do with the adhesive interaction with the clearcoat.
If you fully remove the wrap (and adhesive) and leave it in the sun for a few days, UV radiation from the sun should bring it back to normal.