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

-----

Reactions with Black Phosphate Oxide coating

I am using new hose couplings in the hydraulic, coolant, fuel and transmission systems of the machines we produce here. The new couplings are coated with a black phosphate oxide. Will this coating react in any way with the fluids contained in the various systems?

Pete Goldsmith
- Woodstock, Ontario, Canada
2000

Not to my knowledge, although if the coating was "oiled" the oil would presumably leach into organic fluids.

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
2000

(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: