Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ

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

The authoritative public forum
for Metal Finishing since 1989
-----

Need black plating resistant to 8% KOH

Q. Hi,

I need a black plating process for either stainless, aluminum or steel plates which will become part of a fixture, which will dipped many times for extended periods (approx. 20 min)
in KOH (potassium hydroxide 8%). The plating needs to hold up to the caustic solution indefinitely.
Can someone offer suggestions??

Thanks

steve diprinzio
sigma - tucson, Arizona USA
October 11, 2017

A. Hi Steve. There are probably black precious metal platings which would be completely resistant, but they may be economically prohibitive. I would think that black electroless nickel plating might serve your needs, and it can be applied to any of those substrates. Must it be a metal plating rather than a powder coating or plastisol?

Regards,

Ted Mooney, P.E. RET
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
October 2017

(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: