Cleaning rusty parts with Electrolysis

[nominous]

What effect does this process have on the rubber? I presume none?

Gets wet but that should be all.

Even better than that.
I've had some rubber (like for example on brake calipers) where the metal has rusted on to it. So you can sit there trying to pick off the rust flakes which have become one with the rubber.

This cleans it right off.

Also when it's just rubbers, I'll stick them in a bottle of vinegar.
Vinegar works well for derusting too, but electrolysis is the daddy. So much faster and self agitating where as vinegar needs the odd helping hand. But for just doing rubbers where there is no chance of an electric connection, it's the better choice.