finishing.com -- The Home Page of the Finishing Industry
A website for Serious Education, promoting Aloha,
& the most FUN smiley you can have in metal finishing.
    no popups, no spam
HomeFAQsSuggested
Books
Help
Wanteds
Advertise
on this site
FORUM
current topics
topic 8836

Iron phosphate treatment of chromate treated electroplating


(2001)

Does it make sense to use iron phosphate treatment on chromate treated electroplating prior to powder coating?

David Leyland
- Brooklyn, Connecticut, USA


(2001)

David,

Chrome passivation of surfaces can make it difficult to get good adhesion of paint films. The typical operating conditions of an iron phosphate bath may not remove the passivation. If this is the case, then there is no benefit to treating the parts with an iron phosphate. Generally, when a paint is going to be applied, unpassivated materials are specified. Applying the powder coating to some test parts then checking the adhesion of the coating will tell if there is going to be a problem.

Roy Nuss
Trevose, Pennsylvania, USA



This public forum has 60,000 threads. If you have a question in mind which seems off topic to this thread, you might prefer to Search the Site

ADD a Comment to THIS thread START a NEW threadView CURRENT 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


©1995-2018 finishing.com, Inc., Pine Beach, NJ   -   About finishing.com   -  Privacy Policy
How Google uses data when you visit this site.