I've probably been reading too many painting threads lately but... What are the correct steps and materials used to paint bare metal? Not sheetmetal but misc. parts like brackets, A-arms, etc. that are usually sprayed with cans not guns. I've always wiped the metal down with acetone or carb cleaner to de-grease it, then sprayed primer followed by my paint of choice (varied with what I had on the shelf). But during my recent reading on painting, people have talked about self-etching primer, primers for bare metal, and other stuff I've never even heard of before. And lately I've been seeing cans of paint that say "paint and primer in one"- what kind of voodoo magic is that?. I'm painting a lot of little parts for my current project and, even though I'm using spray cans to do it, I want it to look good and be durable. How about some pointers for the painting illiterate!!