bumper rubber refurbish..??

[hans_11]

anyOne ere know how to refurbish my bumper rubber....its 4 my e30....it '84 car...so da bumper rubber "kurap" abit.....got marks...already try wif wax and rubbing compound...smooth..but still leaves some marks like "kurap"...anyone ere noe where to buy bumper dye...special black spray 4 rubber..but...it only available in oversea...i check DIY store..home hardware...hOme fix...none of it sell dat productmayb i gonna try to spray it....last choice....although not good..afraid of crack in long run bcoz of sun...so..plezz drOp ur idea ere k...thanx