Figured I would Share this...... Rust Removal

[slowinthestraights]

Pretty cool.. im gonna try it out on my exhaust..

After soaking in vinegar..





Pretty awesome results IMO.

[Egaeus]

Don't put galvanized steel (like most of your steel carb parts) in acid.  It eats away the galvanization, which allows it to rust.

[Egaeus]

A question for you metallugically oriented types:  In the electrolytical rust-removal method, is the black residue just black rust (FE₃O₄)?  If so, how do you remove it for the application of a sealant if, say, I wanted to do that to my gas tank?

[Jughead]

I think it's just a Reaction with the Carbon in the Steel.

Kinda Like this.
http://www.caswellplating.com/kits/black.htm