I'm going to modify my front bumper (taking out the bar in the middle) and I'm sandblasting it and spraying it with some semi-gloss black POR15. I was thinking, maybe I should sandblast my whole car and put the por15 all over it... THIS IS SOME SUPER STRONG STUFF!! If someone trys to key your car, good luck! You almost need a chainsaw! So I was thinking, maybe I should just use this stuff as my paint! Heres what it looks like. What do you guys think? Should I use it or should I just have it be my undercoat? (primer) Thanks!