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

-----

How to strip zinc from stamped metal sheet before e-coating

Q. Dear all,
I would like to know any suggestion to strip off (blue) zinc plated surface to prevent uneven surface appear after E-coat finishing.
I tried with sulfuric acid and HCl but it seems like both cause me other problems.
Appreciate input from fellowship all over the world.
Thanks.

KC Tan
- Johor, Malaysia
August 3, 2012

A. Hi KC.
I've stripped electro-galvanized stamped parts from steel sheets followed by CED coating without much problem . I use 30% HCL , once the fizzle stops, they are quickly removed, thoroughly rinsed and immediately proceed to CED coating. The appearance of the CED coating is certainly much more smoother with the galvanize removed.

SK Cheah
- Penang, Malaysia
September 25, 2012

(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: