-- The Home Page of the Finishing Industry

on this site
current topics
Live! From Pine Beach NJ: The world's most popular metal finishing website, and the internet's friendliest corner

topic 17309

Powder coating over e-coated surfaces


Any suggestions/advice for powder coating over a new steel frame after it has been e-coated? I have a 5 stage wash, alkaline - rinse - phosphoric - rinse - RO rinse, and my chemical rep is advising running only the 4th and 5th stage.

David Simon
- Cascade, Iowa


Presuming you get those parts supplied e-coated by others, I would go for 1-2-5, thus removing dirt, finger stains, oil/grease etc. Test one part first; not all E-coat - powder combinations supply enough adhesion. Also outgassing problems are known, especially when the e-coat was cured at too low temp's.

Good luck,

Remmelt Bosklopper
Remmelt Bosklopper
- Enschede, The Netherlands

April 29, 2009

Hi, David. Obviously, the ideal situation would be to go directly from e-coating to powder coating. But I believe that Remmelt is correct that you are likely to have fingerprints and other soils which much be removed before powder coating. Good luck.


Ted Mooney, Teds signature
Ted Mooney, P.E.
Pine Beach, New Jersey
We need "Aloha" now more than ever

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, Inc., Pine Beach, NJ   -   About   -  Privacy Policy
How Google uses data when you visit this site.