If you are looking for hardness for wheels, almost every paint/powdercoating is susceptible to rock chips. The only thing I found that is close to clear protective for wheels is Clear POR-15. 2 part.
I re-finished these rare wheels a few years back. Removed old factory clear. Repaired and re-surfaced the faces. Painted the inserts and polished the lip. On bare aluminum there is a etching spray to apply for 20 seconds then rinse, all in the shade to keep it from drying too fast and spotting. The POR is nasty smelling and it takes some time to totally cure. Depends on the humidity about a week, being it says the more humid without being direct water, the faster and harder it cures. I can't find anyone local that does clear powdercoating anymore, so this is the next go-to. As tough as factory clear, but I can't say how it holds up to winter. I don't drive this one in inclement weather either. I tried the silly wheel clear from the parts stores and it was just as bad as no protective clear.
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Last edited by Chip O; 06/10/2024 4:09 PM.

Chip

'Rusto-Mod'
'51 Chevy 3600 5 window | C4 Corvette front/rear suspension & drivetrain | everything else looks old and stock
'92 GMC Sonoma GT #15 of 806
'91 GMC Sonoma GT Extended cab 1 of 1
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