I'm about to prep a bunch of little parts like the ones pictured, probably 150 in total. I don't really want to wipe each one individually, so I'm wondering if I could use acetone or mineral spirits in a mason jar, shake them, let them dry, then prime them? they're going to eventually be magnets and keychains, so a couple coats of self etching primer, coat or 2 of paint, then clear. I also have access to an ultrasonic cleaner, would that work better? I know that after cleaning, handle them with fresh gloves and paint as soon as they're dry. any tips would be appreciated! #industry