finishing.com -- The Home Page of the Finishing Industry

-----

Salt Spray test for clear zinc plating

Q. I have a question about how much time in a salt spray cabinet should a Zinc chromate plated ( not yellow zinc ) cold rolled steel 1010 surface should stand up to. 12 hrs or 96 hrs.

Thanks

Steve L [surname deleted for privacy by Editor]
Supplier engineer - Toronto, Onatrio, Canada
2004

A. Clear cut answer for ten years ago: 12 hours for clear chromate, 96 for yellow. That was before the recent pressures to eliminate hexavalent chromates from automobile parts though. Today it is routine to use more sophisticated clear trivalent chromates and proprietary topcoats that probably should be expected to withstand 96 hours or more.

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
Ted is available for instant help
or longer-term assistance.
2004

(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: