To start the process, the area should be sanded down and any loose rust or flaky paint removed. We are going to strip the entire car to bare metal instead of doing a bunch of spot repairs. There are a few ways to strip a car down besides media blasting or paint stripping chemicals. You can use a grinder, a Dual Action (D/A) sander fitted with 80-grit paper, a paint-stripping wheel, or a simple wire brush. The grinder will strip the area quickly, but leaves behind pretty bad scratches and could cut a hole in you metal if you are not careful. The D/A works great, but is fairly slow and you will burn thought a lot of paper. The paint stripping wheel works great as well but can generate a lot of heat and could possibly warp the panel. The wire wheel works but it's slow and strips a little area at a time. We decided to use a combination, the paint-stripping wheel to quickly remove the bulk and the D/A to finish the job.