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

-----

Type II Aluminum Anodize - max temp limit in a vacuum

I am looking for data on the maximum Operating Temp for Type III aluminum anodize in a vacuum. I see alot of info on the max process temp and and information on Alodine in a vacuum but nothing on the max operating limit of this type of coating. Can I take this coating to 350C at 10-7 torr? Will it break down or outgas?

Keith Ferrara
Mechanical Engineer - Shelton, Connecticut, USA
February 15, 2011

I will not address the out-gas because we do not know the "hygiene" of the particular anodizing process line, but we can document that above 80& C the coating starts to crack because the coefficient of expansion of the aluminum oxide is only 1/5 th that of the underlying aluminum metal

Robert H Probert
Robert H Probert Technical Services

Garner, North Carolina

February 17, 2011

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: