Leave it to Eastwood to have the materials we need to do the job right. After we scrapped and wire-brushed the underside of the truck pan, we sprayed on their PRE-Paint Prep for proper surface prep. Next, we added a layer of Eastwood's Corroless Rust Stabilizer to prevent future problems, then hit the area with Chassis Black to finish it. The latter two paints combine to form an epoxy bond against rust, chips, salt, and other road hazards. We repeated the process on the top of the pan. Then, to prep the tank before installation, we sprayed it with PRE-Paint Prep as well and finished the job with Eastwood's Tank Tone, which has a nice hue and contains zinc for rust prevention.