I have lots of rusty bits and usually resort to wire wheels, brushes, shot blasting or some other arduous method to remove the stuff. I don't believe in magic so do not fall for these smoke and mirrors mixed with snake oil solutions!
However, yesterday, I filled a bucket with water with a couple of cups of washing soda mixed in. I placed a piece of box section steel in the bucket and clamped the positive terminal of a twelve volt supply to it. I then connected a rusty bit I wanted to restore (off a tractor) submerged in the bucket, hung from the rim of the bucket by a piece of welding rod with the copper covering rubbed off. I then connected the negative terminal of the twelve volt supply to the welding rod.
I switched on the power supply and left it till tonight when I came home from work. The liquid fizzed away with bubbles (hydrogen and oxygen) coming from the metal parts.
The attached picture shows the results. The rusty cruddy one is in the same condition as the clean one was. All I had to do when I took it out was brush the crud off and that was it. Pretty pleased for a first go.
Sent from my iPad using Tapatalk HD
However, yesterday, I filled a bucket with water with a couple of cups of washing soda mixed in. I placed a piece of box section steel in the bucket and clamped the positive terminal of a twelve volt supply to it. I then connected a rusty bit I wanted to restore (off a tractor) submerged in the bucket, hung from the rim of the bucket by a piece of welding rod with the copper covering rubbed off. I then connected the negative terminal of the twelve volt supply to the welding rod.
I switched on the power supply and left it till tonight when I came home from work. The liquid fizzed away with bubbles (hydrogen and oxygen) coming from the metal parts.
The attached picture shows the results. The rusty cruddy one is in the same condition as the clean one was. All I had to do when I took it out was brush the crud off and that was it. Pretty pleased for a first go.
Sent from my iPad using Tapatalk HD