Quote:
Originally Posted by MineralGreyMetallic
Source, please?
When PPF is applied there are always little pockets of air and moisture that get trapped between the paint and PPF. They eventually evaporate.
What makes you think the water and solvents in the paint can't evaporate the same way? That's what "curing" is.
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You're right that PPF is gas permeable to a degree. It does slow this process, though. I think this is only a concern with freshly sprayed body shop paint that is not baked. If the shop bakes it, it's probably ok. It's also not a concern with OEM clear which BMW uses powder and bakes it at high temp so it is 100% cured by the time of delivery.