Primarily Petroliana Shop Talk Forums Shop Talk Petroliana Forums General Petroliana Discussion electrolysis rust removal ... on porcelain?

does anyone have any experience with removing rust from a porcelain sign using electrolysis? namely, does the process take the porcelain off as well? I know electrolysis will take off most paints, but is porcelain one of the special exceptions?

(maybe I should just find a beater porcelain sign, hook up the Frankenstein Bath, and run the experiment myself!)