[bretcopsey]

Low84,

The firewall here at work won't let me see your picture. I'll check it out tonight at home. To answer your question as best I can now though, the metal needs to be in good enough condition that it isn't flimsy or rusted through. Basically, if you would be able to sand the rust off, you could use the acid instead. Deep pitting can still reamain after fully cleaned, but as long as it isn't going to cause any structural weakness to the metal, then you can just use a filler or filler primer to smooth it all out.

I got to work on my truck for a few hours yesterday, and how I wish I could figure out a way to use this method on the cab as well! I sanded for a while, then turned my attention to cutting out the dr side cab corner. It's just so much easier to let a solution eat the rust away then to sand it off!!