netneut -- The Home Page of the Finishing Industry
A website for Serious Education, promoting Aloha,
& the most FUN smiley you can have in metal finishing has been free for 22 years,
but without net neutrality we could soon
cease to exist. Do us a solid, click on
the banner, and contact congress today!
topic 3230

Chromate conversion coating on zinc plated steel


Hello: Does adding a chromate conversion coating to a zinc plated steel enclosure will interfere with the enclosure's EMI protection? I am familiar with ASTM B633 [link by ed. to spec at TechStreet] , but the spec. does not describe the EMI effects of adding a chromate conversion coating. Thank you Matt Wise

Matt Wise
- Germantown, Maryland

I've never heard that it has any effect, and don't think it does.

Ted Mooney, Teds signature
Ted Mooney, P.E. RET
Pine Beach, New Jersey


Hi Matt ,

All the people that I know that plate Enclosures for electronic equipment , yellow chromate treat the Zinc Plating and have never had any problems , but for other reasons a lot of them are now switching (no pun intended) to semi - bright Nickel plating

Best regards

John Tenison-Woods
John Tenison - Woods
- Victoria Australia

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 Q or A to THIS thread START a NEW THREADView This Week's 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

©1995-2017     -    Privacy Policy
How Google uses data when you visit this site.