I use electrolysis to remove rust

As little as 2 amps can be used successfully, but it does take longer, especially with larger pieces.

Brentmc said:

Jon,

You did this to entire car bodies?

Click to expand...

Yes. The tanks are huge. The power supply was 3 phase, 700 amps and they used castic soda beads. Not for the back yard. Now that I know more about the process the company I was working for wasn't doing it totally right. The owner didn't know the physics behind it and would reverse polarities to "shock" the rust off. What he was doing turns out to be sacrificing the car, part, or whatever. Everything I've read about it, no need, and indeed bad to reverse.

The bad thing about cleaning a whole body this way is how to clean hard to reach places. You have to rinse the black "dead" rust off. If you don't it will rust quickly. So in between a hood support and the outer sheet metal would rust for example. What you would have to do to complete the process I think, is to spray a rust converter/primer in rockers and other hard to rinse areas.

The process does work, I've seen some pretty rusted out hulks come out looking hopefull.

Hope this helps.