Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ

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Green passivation

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, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
2000

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