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topic 6667

Green passivation


(2000)

May anyone help me to know the composition of GREEN passivation solution for zinc electroplating?

Rajesh Kumar
MM Nagar, India


(2000)

Here is the U.S.A. we call it 'olive drab' passivation. It's is similar to yellow chromating, containing hexavalent chromium, but it is much heavier and it is more corrosion resistant (150 hours salt spray to white rust). Ted Mooney, finishing.com Teds signature
Ted Mooney, P.E.
finishing.com
Pine Beach, New Jersey



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