Re: Zink chlorid electroplating? Please excuse me if I'm in the wrong place. I'm not a student really, but am a senior looking into things I didn't get to study when young!! I admit, I'm looking for a few answers that will help me with something else I am researching. I have read that the ancient Egyptians or perhaps it was Sumerians, knew how to electroplate with gold. Now I realize an electric current is needed, but is it absolutely necessary, or is there any other way at all that it could be done? I am thinking of the shields that were coated with "quicksilver" in ancient times so to be used for flashing messages. I have read a bit about mining cinnebar and the mercury extraction, played with a little ball of mercury by brother boosted from the science lab, and can't figure out how the constantly, quick rolling ball of liquid could be applied to a smooth surface, like mirrors and become a solid coating. I'd appreciate any help you can give me. Thank you.