Posted by Phil Street on Sunday, July 15, 2007 at 10:10:11 :
In Reply to: electrolytic rust removal posted by John S on Saturday, July 14, 2007 at 19:47:18 :
I've used electrolysis to clean quite a few parts on my Power Wagon.
My experience is with pretty low current. I use a 3 amp battery charger set at 12 volts running about 1-2 amps. It takes quite awhile, 24-36 hrs but works very well. I don't know if higher current would speed up the process.
The resulting piece is covered with a black substance that needs to be washed and wirebrushed off before painting.
A couple of lessons learned:
The part needs to be cleaned and degreased before electrolysis.
The part needs to be protected fairly quickly after electrolysis and cleaning otherwise flash rusting will occur!