I have heard people making a sponge bath tank to clean old machinery they are repainting. Exactly what is it, how do you make one, how good does it clean? What kind of solution do you use in it? I heard something about using rebar rods, a battery charger and a big garbage can or plastic tub. Any one have any pictures? I use to haave a friend that run a radiator shop and I have taken fenders and even a hood off a car in and he would put it in his tank over night and it woul strip it really good. Problem was you had to really wash it good and prime it right away or it would rust overnight. He retired and closed his shop and it is getting harder and harder to find oild timers that would do things like that.
What is a sponge bath tank?
- Thread starter john11139
- Start date
Fyrme
Well-known member
Google electrolysis tank. Never heard of a sponge bath tank. Makes me think of western movies where they take a bath in a water trough.
Here's a drill press table taking a 'bath' don't see the sponge though.
Here's a drill press table taking a 'bath' don't see the sponge though.
Spooge, not sponge. Some people call rust removal by electrolysis by that name. Why, I'd rather not speculate. And I wouldn't recommend Googling it, because you'll probably get a lot of hits that have nothing to do with metal cleaning and rust removal.
Scott H in Wheaton
Well-known member
plenty of YouTube videos on rust removal using electrolysis.
Basically you need a 12v battery charger, a plastic tank, water, washing soda (not baking powder). Mix the washing soda into the water. Suspend the part in the solution. Clip the positive lead of the battery charger to a piece of waste metal like a hunk of rebar, then clip the negative lead to the part you want to de-rust. The electricity running through the parts and the solution will cause the rust particles to leave your good part and attach themselves to the rebar. Takes several hours but cost is minimal.
Works on a "line of sight" prinicple. Rust will only come off the area facing the electrode, so you may have to surround it with electrodes or turn it around to do the other side.
Basically you need a 12v battery charger, a plastic tank, water, washing soda (not baking powder). Mix the washing soda into the water. Suspend the part in the solution. Clip the positive lead of the battery charger to a piece of waste metal like a hunk of rebar, then clip the negative lead to the part you want to de-rust. The electricity running through the parts and the solution will cause the rust particles to leave your good part and attach themselves to the rebar. Takes several hours but cost is minimal.
Works on a "line of sight" prinicple. Rust will only come off the area facing the electrode, so you may have to surround it with electrodes or turn it around to do the other side.
JonBoehman
Well-known member
Use a stock tank for livestock.