scuff it nice and rough, skim it with bondo, sand, prime, wet sand, and paint it.....i was gonna do mine but decided i didnt want to do the work.....i was gonna do it because i had dings and dents in it and it was cheaper to fix with fiberglass and bondo then to buy a new chrome one.....some local autopart store offer bumpers....last time i checked they offered a flat black one which would make it easy for paint.....prob still run you 350ish before painting