[gr8fl4porsche]

I would love to see some pics of those wheels!!!!!

An automotive acrylic clear coat shoud bond fine as long
as the wheels don't have any compound left on them from the
polishing. Do a solvent wipe of the same solvent used to reduce the clear.

I don't know why the clear would dull as all new cars these days have clear coats. Maybe the abuse from road debris and brake dust would dull it but wax should bring it back around.

Sherwin Williams Automotive top line products have worked great for me in the past - although slightly expensive.

Technically, corrosion can develop beneath the coating by a process called 'undercutting' in which rust and oxidation can grow
when substrate is not totally encapsulated - and sometimes when it is - most coating applications contain some microscopic pinholes.

Go for it - worst case you remove it with stripper years down the road and do it again.