Overspray if you want the name of top notch company sure... SOUTHERN POLY URETHANES. As far as your post, I think it will and can be very confusing for any newbie or anyone for that matter.
As far as prep for above companys epoxy primer>>>>>
"Metal or Aluminum must be clean of all rust and oils and any films. Never clean metal with lacquer thinner or reducers of any kind. Raw metal of any type is always cleaned best with a waterborne wax and grease remover such as SPIís part # 700-1. This is most important for prepping aluminum. Sand with 80 da paper or coarser ONLY."
I as well as countless others on this boards and others I frequent use these products and never have problems...