I used a quality paint prep (to eliminate wax residue). Masked off surrounding surface and emblems. Sprayed the base , allowing at least 1.5 hours between coats. Decided if I needed to wetsand (did not) than sprayed 2 coats of clear (about 1 hour separating the coats). Now, if I were to do a larger surface like a bumper, I would probably sand the surface, do a proper wipedown, spray the base, wetsand, spray another base and then clear (Light wetsand if necessary). The main reason to sand the bumper first to to promote adhesion of the paint. Hope this helps.