Can you paint clear coat on bare alluminum?

I have a wheel that has some alluminum that originally had clear coat on it. It was just shiny alluminum with clear coat. It got some deep grooves in it that I knew I could sand out and polish back to good. I started with 400 grit, then 800 grit, then 1000 grit and finally polished with 2000 grit before painting with acryilic lacquer clear coat. I waited approximately two days before using rubbing compound to lightly buff and then a glaze to shine it when I noticed it was peeling my new clear coat back off.





Will the clear coat that I'm using not adhere to the bare alluminum or do I just need to stop at resanding with 1000 grit and try painting it again?





Thanks in advance!!Can you paint clear coat on bare alluminum?
Yes you can put clear coat on aluminum but do not use rubbing compound on the new clear coat. 1st sand the aluminum with 800 then 1000 grit, clean with soap and water, 2nd spay a good clear coat on allowing at least 10 minutes between coats, 3rd let dry you should have a shine that can't be beat. you should not have to sand the clear coat at all. use a polish compound if you have little imperfections in the clear but the rubbing compound is way to abrasives.Can you paint clear coat on bare alluminum?
That lacquer clear coat is pretty weak and should be applied extra thick to help it stick. It doesn't matter what grit the surface is prepared with because it needs more of a chemical bond than mechanical.The clear used on aluminum rims from the manufacturer is a two part urethane,the same as used on the outer body over the base color coat.Even that doesn't work that great over time,as you can see.
http://www.ronjoseph.com/painting-alumin鈥?/a>





It seems there's more to this than meets the eye.