How To Correctly Do Auto Sanding On Bodywork Repairs
2022 12 01 · The secret to achieving the straightest and flattest possible surface upon which to apply paint is to use a long sanding board or block with progressively finer sandpaper After you rough sand using relatively coarse 80 or 100 grit sandpaper by hand then use an air file sanding machine with 200 to 320 grit sandpaper