I have been working on derusting a fender. I use a cheap stainless steel bow from the dollar store. It tarnishes a bit but otherwise it doesn't change at all. Even with the tarnishing the current doesn't decrease. I am using a children's wading pool and a battery chrger giving 6 amps at 12 volts. I am really impressed with the process and it is even lifting paint off the top side for me.
