6b. The black paint acts as a guidecoat to ensure the piece has been sanded smooth. If all of the paint is evenly removed after a light sanding with 400-grit paper, you're ready to move on. If not, you'll have to apply another one to two coats of primer and use the guidecoat to make sure the piece is smooth. When the primer is dry, clean with wax and grease remover one last time.

3b.With the sanding finished, he removed the sanding marks with a buffer and compound. For more information on color-sanding and buffing, make sure to pick up a copy of the October '08 issue of Sport Truck, which will feature a full story on the subject.

The Final Word
With meticulous cleaning and prepping, this panel was transformed from an ugly, mass-produced hunk of plastic into a show-worthy interior accent that should last the life of our truck's exterior paintjob.

Kustom Werx Autobody Dura-Block
PPG Industries
Klean-Strip Automotive (Bulldog)
Brault Auto Paint Supply