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
-----

Touch-up of Black Oxide

Is there a touch-up for Black Oxide per MIL-DTL-13924 [on DLA]?

Patricia Smith
Q.C.Tech - Rome, New York
2007

2007

Pat,

Have you forgotten how to pick up the phone? I guess this finishing.com thing has gotten too good at solving finishing issues - it's easier than calling one of your long time suppliers. Any way, I'm not aware of any permissible touch-up for mil spec black oxide, however, there are certainly a whole host of room temperature blackening solutions, many of them selenium based, which could be tried. I'm guessing you have an assembly that subjecting to 280 °F boiling alkaline salts would be a concern. You know my number!

Milt Stevenson, Jr.
Syracuse, New York

(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: