Aloha, fun & authoritative answers -- no cost, no registration, no passwords, no popups
(as an eBay Partner & Amazon Affiliate we earn from qualifying purchases)

Where the
world gathers for metal finishing
Q&As since 1989

-----

Salt spray life of zinc plating with chromate

Dear sir,

Please provide the salt spray resistance (ASTM B117 ) achievable with various chromate passivation on zinc plated components with respect to white rust formation. In our practical tests we have achieved up to 250 hours white rust salt spray life for green and yellow passivation.

Thank you,

Siva Raman
- Chennai, Tamil Nadu, India
2002

You're doing fine, Siva. Olive drab should do 150 hours, yellow 96 hours.

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
2002

(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)

Q, A, or Comment on THIS thread -or- Start a NEW Thread

Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful.

If you are seeking a product or service related to metal finishing, please check these Directories: