-- The Home Page of the Finishing Industry
Serious Education & the most FUN
you can have in metal finishing smiley

No popups, spam, registration or passwords
on this site
current topics
topic 11420

High/Medium/Low Phosphorus Electroless Nickel Bath


I need to plate Electroless Nickel coating onto Copper substrate. The coating must be with high (>10%),medium (8-10%) and low (<4%) phosphorus content. What are the bath combinations that produce such coating? Or is there any commercial bath supplier?

Siew Fong Tai
University of Technology Malaysia - Skudai, Johor, Malaysia


Yes, proprietaries are the way to go with electroless nickel. There are numerous suppliers available.

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


There are a number of commercial suppliers of all three baths you mention.

James Totter
James Totter, CEF
- Tallahassee, Florida

I've tried the following combination of EN plating solution. It is said to produce low Phosphorus content(2%). Somehow I've got 12%. Why is it so?

Nickel Sulfate 30 g/L
Sodium hypophosphite 30 g/L
Sodium pyrophosphite 60 g/L
Thiourea 3 mg/L
pH 9
Temperature 85 deg C

What other combinations that can produce low and medium Phosphorus deposition?

Siew Fong Tai
University of Technology Malaysia - Skudai, Johor, Malaysia



Go back to basics. You belong to a University. Get some good books on the subject. I personally recommend the Metals Handbook, Ninth Edition, Volume 5 Surface Cleaning, Finishing and Coating by ASM and The Properties of Electrodeposited Metals and Alloys Second Edition by AESF

Guillermo Marrufo
Monterrey, NL, Mexico

If you have a question in mind which seems off topic, please 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.