This is Collin from paintscratch. You need both the basecoat and clearcoat. The basecoat is the actual color of your car, the clearcoat is the protective layer which is applied over the basecoat. Then use rubbing compound to smooth and shine the repair. Hope this helps.
Hey Colin, welcome! Please comment on this thread: http://priuschat.com/forums/gen-iii...ooting/99485-front-bumper-scratched-help.html
Best place online, used many times, perfect match even without clear coat! Toyota Prius Accessories Hope it helps.