I have a question about painting Aluminum do I need to just rough up the finish before painting and I guess I need a paint that will work on metal. Thanks.
Etching primer is for steel(rust) I thought???
I have always scuffed, primered, wet sand, finish paint, sand, repeat finish coats.
Never had a problem except with rim brakes!
id go with etching primer its supposed to be good for any metal, even galvanize coatings. light coats, it should be semi transparent. im going to use it on a set of aluminum rims. i asked about it a while back because i thought they were anodized.