3. Before the new LMC Truck core support and front fenders could be installed, the team had to paint them. The core support was completely painted while the front fenders were only painted on the inside. This is where some of the Keystone Automotive products came into play. In order, the components were scuffed with Scotch-Brite general purpose hand pads (to ensure good paint adhesion), cleaned and degreased, sealed with PPG K36 sealer, painted with PPG red paint, and sprayed with PPG DCU 2002 clearcoat.