Someone once mentioned to me that keum-boo could be applied to
various metals, including bronze. Perhaps that was what you saw?
Any keum-boo workers want to add to this, pro or con?
I’ve had limited success on both bronze and copper. Nothing easy
about it… two steps forward, two and one half back in most cases.
For my next efforts (if and when) it might be reasonable to try with
a shielding gas such as argon. Oxidation of the base is the main
impediment to success.
For excellent info on the subject check out Charles Lewton-Brain’s
article in the Orchid archives.
All the best,