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what do you use after sandblasting?

4.2K views 6 replies 4 participants last post by  Guest  
My body man is a big $ rod builder so I trust his judgement. When he sandblasts anything, he then sands the rough surface off with 150 grit or finer sanpaper before aplying metal treatment, zinc primer, then epoxy primer. little bits of foriegn material are hiding in the blasted surface and can haunt you later.