2. After the whole truck was blocked and one more coat of high-build was applied, the truck was rolled into a completely different area of the shop where the doors and tailgate were removed so the jambs could be sprayed. Before any sealer or paint is applied, the areas are blown off with compressed air to remove loose dust. Then, they are given a through rubbing with alcohol wipes to remove any oil or static electricity. A tack cloth is then used to perform the final wipe as a last line of defense against dirt.