I’m trying my hand at rust removal with electrolysis for the first time, and so far, it looks good. I’m using my 10A battery charger, two pieces of 1/2×18” rebar, 12AWG wire, a plastic tub that is just a bit too small, and washing soda.
An hour and a half in, and there is already rust floating on the surface and a steady stream of O2 and H2 bubbles coming off the rebar pieces.
I’ll put more pics up as it progresses. I’m hoping to get the base finished and primered this weekend.
After about 18 hours of sitting, there is a noticeable difference. The electrolysis had stopped working (or had slowed so much it wasn’t visible) because the rebar pieces were covered in rust. I was working conservatively, so I only used two pieces and the water level was low. To speed things up, I’ve filled the container further and added three more pieces of rebar. I also pulled the two original pieces, and under running water, scrubbed them with a steel brush to “refresh” them.
Started it back up and the bubbles started flowing again.
Before and after:
The black is fresh, clean cast iron:
Ugly stuff, ain’t it?
-- Semper fi, Brad