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Protecting Nickel Plated Steel from Zinc Chloride

April 20, 2015

Q. Hi,

I am looking to coat the inside of a small nickel plated steel can (about the same size as an AA battery casing) with a conductive graphite layer that has enough density to prevent ZnCl2 (zinc chloride) reacting with the steel.
The can is filled with ZnCl2 and I am trying to prevent the ZnCl2 from reacting with the metal whilst keeping the lining of the can conductive.
Can this be achieved by paint or other form of coating ?

Mike Eastwood
product design student - New York , New York , USA

A. Hi Mike. I'm not understanding the relationship between the graphite and protecting the can from the ZnCl2. Why graphite? I think a good electroless nickel plating on the steel would stand up to ZnCl2, while being conductive. This is a water-based solution? What concentration or molarity?

I think solid graphite construction might work as well. Then again I don't really understand your proposition. Good luck.

Regards,

Ted Mooney, P.E. RET
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
April 2015

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