I had gouges in the rear bumper trim (because my sister owned the vehicle before I did and seemed to back into alot of things) and I used Spot Putty to fill in the low areas. I then sanded it with 1200 Grit (wet or dry) sand paper. Taped the area off and primered it, sanded it until it was uniformally smooth and painted it with Spray Max 1K Black Trim Paint (11.3 oz) at Napa Auto parts for $14.00.