Hmmm. I should know this one. I had my metal parts and frame dipped at a place on Singleton Blvd and Loop 12 back in the early 90's. I can't for the life remember the name of the place. I will try to remember to get into my receipts tomorrow and see if I can find a name for you. The guy had an entire 56 Olds convertible body in the vat when I dropped off my parts. He had paint stripping tanks and an acid vat for de-rusting too. The metal parts come out looking like brand new. It wouldn't surprise me if the location isn't an EPA superfund site now though.