I have been driving my car on road full of construction worker's trucks for since last four years, color work on my front bumper is damaged pretty well. pretty much like lots of small stones flying around makes a chip in bumper. Right now if i try to feel it with my hand it feels like "take a pin and a piece of a plastic toy and start nabbing pin on that piece. see the results after about 15 20 minutes" thats exectly how my bumper is, any suggestion how to cure this?