No passwords, no registration, no paywalls, no popups, no AI

As an Amazon Associate & eBay Partner we earn from affil links

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

Search our quarter-million Q&As

Home of the finishing HOTLINE since 1989

-----

Trivalent Blue without sealer

Hi,
1) How many hours can trivalent blue without sealer withstand the salt spray corrosion test?
2) Is Trivalent Blue without sealer the same as corro triblue?
3) What are the difference between Surtec 667 and Trivalent Blue without sealer?
Thanks.

Alison Xie
Employee - Singapore
September 22, 2010

Hi, Alison.

At this point, trivalent chromates are still highly proprietary with little that can be said about them generically. The particular chromate that someone is thinking of may not be intended to be used without a final sealer, and then all bets would be off as to how long it would last in salt spray. But I think the general idea is that the trivalent chromate system should match the performance of traditional hexavalent yellow chromates, i.e., 96 hours.

Regards,

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
Need quick confidential answers? $25
Need project assistance? $100/hr.
September 23, 2010

Sorry! Finishing.com is temporarily Read-Only.
Ted Mooney is retiring but I have several offers to take it over.
We're working hard to make sure we find it the best new home.

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: