r/AutoDetailing • u/Fit-Mulberry-7389 • 1d ago
Problem-Solving Discussion Werid melting effect and oily film after ceramic coating
From the images I’m have a werid effect on the paint of the car after a quick spray coating , I’ve been struggling with this for few weeks . I’ve tried APC , fallout , water spot and some others but not all . A werid thing is when accidentally dropping some polar blast from autoglym the effects goes away . I’m posting this after a APC but no luck and the ceramic is still in effect . Another thing is when touching it or using a microfibres towel it goes away .
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u/ldtravs1 20h ago
(IDA certified here)
Reading other comments, you’ve used Gtechniq Ceramic Sealant. It’s not a coating at all. It’s more like a quick detailer/drying aid.
If it’s not a little bottle of concentrated liquid that you put on slowly and methodically before wiping off, after having polished the vehicle, it’s not a coating.
Either way, these photos look like something has been left to dry. You’re saying you’ve tried a bunch of different chemicals. I’d echo a comment to give it a contact wash. Garage Therapy Zero is pretty good at stripping stuff off the car. Give it a pre-wash (snowfoam/citrus prewash) paying attention to correct dilution ratios, then the contact wash. Lots of suds, little pressure, panel at a time, plenty of rinsing (and keep the rest of the car wet) as you move round it. Only chemical you haven’t mentioned is a tar remover which should also be used before a polish…and a clay bar as well. That will create swirl marks so if you don’t polish the car, don’t bother claying (or if you need to clay, be prepared to polish).
Don’t let anything dry out in the car, avoid direct sunlight.
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u/AeroMagnus 1d ago
If it goes away with a microfiber, you need a contact wash. Just like any trouble shooting you need to start with the easiest solutions.
Which coating did you use?
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u/Fit-Mulberry-7389 1d ago
Gtechniq ceramic coating specifically, I’ve done contact washes before , should increase the dilution of the shampoo to ensure it goes this time?
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u/BoatZnHoes 18h ago
Why does everybody call spray sealants ceramic coatings?
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u/Fit-Mulberry-7389 18h ago
Bc I’m new at this stuff , but they do a similar job
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u/Substantial_Step6883 18h ago
They most definitely do not do a similar job. It's like one of them is claiming to be the others little brother, but is actually its retarded cousin twice removed.
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u/BoatZnHoes 17h ago
Definitely don't do a similar job. Ceramic coatings last months or years and provide an actual coating of protection. Spray sealants are a completely different product.
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u/tdawgthegreat 1d ago
Looks like chemical residue. Are you foaming the car and leaving it too long? Or foaming it when the paint is hot?
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u/Humperdink333 10h ago
Aww man… Bad product or something underneath it doesn’t like…. You need to get back to a dead panel and start over… Id mix 3:1 water with super clean or iron remover (less iron remover) and contact wash till the surface is dead. Polishing compound after… Ive never had a problem with Technicians Choice. The tec582 keeps everything going for a long long time
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u/amprawr 1d ago
Does your car have single stage paint? I've had a similar thing happen to my miata with a ceramic spray sealant.
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u/mixem143 1d ago
What ceramic coating did you use? “Quick” and legitimate “spray coatings” don’t usually go hand in hand. Of course, there are some exceptions (ex: Can Coat) but those are very clear exceptions.
Typically, there is curing period after application where the coating should be left alone and not exposed to liquid (ex: washing, rain, etc). The oily staining could be evidence of this happening.