Home /
T.O.C.
FAQs
 
Good
Books
Ref.
Libr.
Advertise
Here
Help
Wanted
Current
Q&A's
Search 🔍
the Site

World's #1 finishing resource since 1989
No login needed: Chime right in

topic 59300

Blistering of Zinc Plated surfaces during Alkaline Degreasing



June 12, 2013

Q. We are getting white blisters on the Zinc Plated components when they are subjected to go through Alkaline Degreasing process along with other normal MS Sheet. What is the reason and how we can avoid this defect?

ARIJIT DAS
Quality assurance - JAMSHEDPUR, JHARKHAND, INDIA


June 18, 2013

A. Hi Arijit. I'm not sure that "defect" is the right word. Zinc plating and its chromating are not resistant to strong alkalies. So I'm not sure that the process itself is at all acceptable -- but if you can detail it a little more fully, maybe the readers can help. Good luck.

Regards,

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

help wanted ad
Plating Process Engineer [Wenatchee, WA]
Plating Supervisor [Chicago]
Plating Quality Inspector [Chicago]

Q, A, or Comment on THIS thread SEARCH for Threads about ... My Topic Not Found: Start 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    -    ©1995-2021 finishing.com, Pine Beach, New Jersey, USA