painting aluminum

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Yes it needs a scuff for primer to stick, then paint! Be sure to clean real good before paint.
 
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.
 

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