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

Metal finishing Q&As since 1989

-----

Alodine in vacuum

I am looking at Alodining aluminum parts and putting them in UHV chambers. Will baking the chamber be an issue and will outgassing be an issue?

Glenn Jones
- Berkeley, CA, U.S.A.

Alodine is a trademark name for a chromate conversion coating. It is a gel, which will lose water upon baking, and will probably outgas in a vacuum.

Tom Pullizzi
Falls Township, Pennsylvania

Up to about 17% of the coating weight is water. The higher the bakeout, the more of this water that will be lost. Chemistry of the coating changes at 300 deg C, so stay lower.

Jordan spaulding
lockmart - sunnyvale, California

(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: