wet sand single stage acrylic urethane

sscuda said

By adding clear coat to the color coat you are reducing the hiding quality. You could run into a issues with `see through`.

By adding a clear with a different resin system or coating over the color coat you run the risk of delamination (splitting or peeling). One resin system works against the other. It`s called surface tension.

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So why does this eventually occur on all factory vehicles with clear coat that get sunlight on them?
I'd hope the manufacturers are using compatible coatings, but I see these peely cars everywhere.
It's crazy to think avoiding this means having to cover a vehicle from sunlight every time you park it.
And I don't even live in the great hot southwest, it must be a really bad problem there.