These 2 bits always peeled with 3 coats...
even with being careful of the nozzle distance of my washer. That being said, I believe with wheels one should cover both inside and out with plasti-dip to eliminate any ends or edges of the product other than at the outer rim. Also...it has been said to use 5 coats on wheels. You still need to be careful because if anything contacts or grabs onto the surface...it will peel.
My newly self-painted wheels however...
I used flat blk. engine (high-temp and fluid resistant) paint that was 1/3 the cost of p-dip, but you cannot peel it off if one should change their mind.
I would just need to respray.