finishing.com -- The Home Page of the Finishing Industry

HomeFAQsSuggested
Books
Help
Wanteds
Advertise
on this site
FORUM
current topics
Live! From beautiful Pine Beach New Jersey: Welcome to the world's most popular metal finishing website

topic 54896

Pitting on antique brass finishing




April 24, 2010

hi
we are doing antique brass on zammak buckle but we found pitting on it,how to remove it ?

our process is
cleaning,dipping,copper ,brass,antique and then finishing

regards

Tariq Malik
plating shop employ - Pakistan


April 26, 2010

Hi, Tariq. It isn't clear what kind of pits you are speaking of or at what step they originated. Get back to us.

Regards,

Ted Mooney, finishing.com
Teds signature
Ted Mooney, P.E.
finishing.com
Pine Beach, New Jersey
Striving to live "Aloha"


April 29, 2010

pittings are hard and small dots , they appear after brass and become more prominent after antique finish.

regards
Tariq

Tariq Malik
- Pakistan


April 29, 2010

Hi, Tariq. It surprises me that these "dots" are not present after copper plating, but only after brass plating. But if that is indeed the case, it seems that they are particles that are not being filtered out. Is there a filter on the brass plating tank? Do you use anode bags on the anode baskets? Is this cyanide brass plating?

Regards,

Ted Mooney, finishing.com
Teds signature
Ted Mooney, P.E.
finishing.com
Pine Beach, New Jersey
Striving to live "Aloha"


First of two simultaneous responses -- April 29, 2010

The quality of replies normally is directly related to the amount and quality of the information provided. You have said zero.zero about solutions, times, amperage, and temperatures.
If those do not make a difference to you, you will probably have to live with problems.

James Watts
- Navarre, Florida


Second of two simultaneous responses -- April 30, 2010

yes this is cyanide brass plating, filter is present in brass plating bath but we don't use anode bags.

regards

Tariq
- Pakistan



If you have a question in mind which seems off topic, please Search the Site

ADD a Q, A, or Comment on THIS topic START an UNRELATED topicView CURRENT HOT TOPICS

Disclaimer: It's not possible to 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 may be deliberately harmful.

  If you need a product/service, please check these Directories:

JobshopsCapital Equip. & Install'nChemicals & Consumables Consult'g, Train'g, SoftwareEnvironmental ComplianceTesting Svcs. & Devices


©1995-2019 finishing.com, Inc., Pine Beach, NJ   -   About finishing.com   -  Privacy Policy
How Google uses data when you visit this site.