I tried Rolands method of using Electrolysis last night to clean up a CI bearing cap from a Bamford corn mill. Before hand it was half rust with some paint.
I am pleased to say, that it is now back to cast metal.
It worked very very well indeed for me, so I would recommend anyone else have a go to. It is now our intention to rig something up a little more permanent than last nights experiment, and hopefully we can do away with using wire wheels and paint stripper altogether.
Full marks from this corner?