-- 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 1959

Plating Electroless Nickel onto a Silver Substrate


Can anybody tell me if electroless nickel can be plated on silver substrate? Is any pre-treatment necessary to condition silver before immersing the sample in electroless nickel/phosphorous solution?

Thanks a lot for your attention.

Madhhumita Datta
Laboratory of Physical Sciences - College Park, MD


A normal prep cycle for silver will do. EN will not plate, without help, onto silver. A palladium immersion coat will work. More practical is a nickel strike and rapidly rinse and get into the EN, or put the prepped part into the EN and make the part cathodic for a few seconds with some type of anode in the tank that you remove after the EN kicks off.

Lowenheim's Modern Electroplating has a few sentences on it.

Most other references have nothing.

Not many people would have a need for EN over silver.

James Watts
- Navarre, Florida


Acidic hypo EN does not work on Ag, but ammonia hypo EN does. Substrate surface should be polished, or degreased and soaked in a thiourea-type lightener. Rinse with DI water and plate immediately.

Alex Kozlov
- New Jersey

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.