-- 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
on this site
current topics
topic 2253

Conductive Coating for Aluminum


Hello, I am looking for a coating/finish for Al 6061-T6 plate which is ESD dissipative (slightly electrically conductive), long wearing, and does not contain Fe, Ni, or Cr.

Can this coating be lapped and polished after application to achieve super-flatness?

Thank you.

Michael McEachen
Digital Instruments - Santa Barbara, California, USA


It is possible to deposit and lap several other metals or alloys. Need to find out what works better.

Please contact us.

Mandar Sunthankar
- Fort Collins, Colorado


I'm looking for an appropriate conductive coating for aluminum electrical connector backshells that will provide electrical continuity for electrostatic shielding. I would prefer a black coating, but clear or other colors could be considered. I want to be able to specify this process to the connector manufacturer for use in relatively small quantities.

Ron Martin
- Ann Arbor, Michigan



One finish on aluminum that is conductive is Alodine or Iridite. It has a yellow tint or can also come in a clear finish. The military specification is Mil-C-5541 [link by ed. to spec at TechStreet].


Bob Bramson
B&M Finishers / Prismatic Stainless Steel
supporting advertiser
Kenilworth, New Jersey

b&m finishers banner



The chromate conversion coating on aluminum may have enough electrical conductivity for your purpose.

Donald M. Mattox
Society of Vacuum Coaters
Albuquerque, New Mexico

Ed. note:
            Mr. Mattox is
            the author of -->


I too seek a black, conductive aluminum coating. In the 1980s a local (San Jose, CA) plater provided us with what he called black Alodine. Nowadays nobody seems to have heard of it.

Everett Reed
- Monterey, California


Is Aluminium with Alodine finish solderable on printed circuit board (PCB)?


power supplies - Sydney, Australia

March 18, 2010

No, Alodine/Iridite is not wettable by tin-lead or any common solder.

Stephen Shelton
enclosure design - Atlanta, Georgia

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