PEOPLE helping each other -- No AI, no cost, no reg'n, no damn popups
(As an Amazon Associate & eBay Partner we earn from qualifying purchases)

Curated with aloha by
Ted Mooney, P.E. RET

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

  The authoritative public forum
  for Metal Finishing 1989-2025

-----

Galvanic action between stainless steel pin fixing to an aluminum window restictor

2006

The head of the stainless steel pin has shown corrosion (rust) within weeks of been fitted.
Window manufacturer is proposing to apply an aluminum paint to cover the pin.
Is this acceptable?

DEREK SQUIRE

I think it would harm nothing and is acceptable, but it may not be the best answer. Aluminum is theoretically anodic to stainless steel and should not cause galvanic corrosion to the stainless steel, but all corrosion is not necessarily caused by galvanic incompatibility. These pins probably should have been passivated to deter rust.

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
2006

Another option would be to electroplate the SST pin with a pure aluminum coating to eliminate dissimilar metal issues.

Gus Vallejo

2006

www.finishing.com is made possible by supporting advertisers ...
this text gets replaced with bannerText

(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: