soda blasting

Had my hood sold blasted

MUST be neutralized afterwards before paint of any kind. Idiot that had the car didn't do it and the primer had to be removed and then prepped correctly. Not a wave in it.

As others have said will not touch undercoating or rust. Had the underbody, trunk, interior and engine compartment sand blasted

Been 20 years since the car was sand blasted, still have black sand come out occasionally.

A buddy that owned a body shop talked about walnut shell blasting. Can do a car with all the trim and not damage the trim. Said they could even do fiberglass cars without damage. Not this probably wouldn't take care of rust or undercoating.