People helping each other -- No AI, no cost, no reg'n, no damn popups
(As an Amazon Associate & eBay Partner we earn from qualifying purchases)

Home /
T.O.C.
Fun
FAQs
Good
Books
Ref.
Libr.
Adver-
tise
Help
Wanted
Current
Q&A's
Site 🔍
Search
finishing.com -- The Home Page of the Finishing Industry


  Thread 470/45

Discolouration of Olive Passivation


Dears,

I am doing the zinc plating with all passivations. Recently I am facing the disclouration of olive passivation only. This problem starts after a day or two. Please suggest the possible reasons and solution on the problem.

Santosh Pawar
Plating shop employee - Maharashtra, India
2007
publicly reply to Santosh Pawar


Hello.

First clear that what you meant by discolouration.

Well in my view if you are maintaining the chloride content too high it might lead to deposition of the olive green pass. to little bit slower.
Also for good results heat the pass. at about 28--32 degrees c.
After Passivation bake it for 15--20 mins. at about 35--40 degrees c.

Hope it works.

Sean Aarchr
- Chandigarh
2007
publicly reply to Sean Aarchr



(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:

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


About/Contact  -  Privacy Policy  -  ©1995-2025 finishing.com, Pine Beach, New Jersey, USA  -  about "affil links"