No registration or passwords; no pop-up ads -- just aloha, fun, & answers.
(as an eBay Partner & Amazon Affiliate earns from qualifying purchases).
Home /
T.O.C.
Fun
FAQs
Good
Books
Ref.
Libr.
Adver-
tise
Help
Wanted
Current
Q&A's
Site 🔍
Search
pub  Where the
world gathers for metal finishing
Q&As since 1989



-----

Black Oxide Corrosion Resistance





I have been reading on your site about Black Oxide finishes. The consensus seems to be the corrosion resistance of Black Oxide finishes are marginal at best. I have a steel product that will be in an exposed outdoor environment its entire product life. Is black oxide suitable for such an application? How might it compare to powder coating in corrosions resistance and durability?

Thank you for your time,

John Bomgren
- Sheldon, Iowa, USA
2003



No, the black oxided product will not be suitable for outdoor exposure. Powder coating, properly applied on a pretreated substrate, has the potential of being fine.

Ted Mooney, finishing.com
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
2003



True "Black Oxide" and most of the so called substitutes derive ALL of their corrosion protection from the top coat which is either oil, wax, or lacquer; all of which degrade in outside exposure. The Black Oxide itself has zero protection. As Ted said, powder coat is the best protection for out side.

robert probert
Robert H Probert
Robert H Probert Technical Services
supporting advertiser
Garner, North Carolina
probertbanner
2003




(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:

 
Jobshops
Capital
Equipment
Chemicals &
Consumables
Consult'g, Train'g
& Software


About/Contact  -  Privacy Policy  -  ©1995-2024 finishing.com, Pine Beach, New Jersey, USA  -  about "affil links"