No passwords, No popups, No cost, No AI:
we earn from 'affiliate link' purchases, making the site possible

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

-----

Selective coating for solar absorber

I wish to put a solar absorbing 'selective' type coating on my stainless steel flat plate solar water heater. Is black oxide a good treatment and how is it done?

Chris Lawry
manufacturer - Christchurch, Canterbury, New Zealand
January 14, 2008

Conventional black oxide works fine with carbon steel due to the formation of certain iron oxides. SS is always pre-oxidized naturally with a different type of oxide that is light gray in color (chromium oxide). It will not take a black shade unless you use special formulations.

Guillermo Marrufo
Monterrey, NL, Mexico
January 18, 2008

(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: