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Metal finishing Q&As since 1989
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Protective Finish for PhBr Electrical Contacts
Need a finish to maintain brightness and conductivity on phoze Bronze electrical contact. Want the finished assembled contact blocks to have a bright attractive finish. Would prefer a finish that will protect brightness through handling for assembly.
Paul Edie- NY
Lacquers and electrophretic coatings would make the contacts non-conductive, so it looks like you should be looking at chromates or benzotriazoles ⇦[this on eBay or Amazon affil links] . But all non-precious metals tarnish, so the finish will have a limited lifetime.
![Ted Mooney, finishing.com](../portraits/ted_mooney_beach.jpg)
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
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