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topic 11051

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. But all non-precious metals tarnish, so the finish will have a limited lifetime.

Ted Mooney, Teds signature
Ted Mooney, P.E.
Pine Beach, New Jersey

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