After blasting or sanding I use acetone to clean the frame , then at least 2 coats of self-etching primer , 2-3 coats of filler-primer , I like the Dupli-Color products . Then a light sanding and paint ready , most clear coats need to be applied 30 min after final coat of paint , and products do need to be compatible , I like the Lacquer paint and clear , have also painted 3 bikes with paint from a company called Auto-Motive touch Up , It's great stuff $20 bucks a can and it's urethane based , and you can use the lacquer clear w/it , they have all the cool Mopar colors that Dupli-Color doesnt have , sublime , plumcrazy , etc. !