-- The Home Page of the Finishing Industry
A website for Serious Education, promoting Aloha,
& the most FUN smiley you can have in metal finishing

topic 2684

Removing electroless Ni from steel


I am trying to remove electroless Nickel coating and Copper strike from steel without corroding steel surface. So far my results are very inconsistent: parts cleaned in the same acid vat never look the same. My acid bath is basically Hydrochloric/Sulfuric acids at 1 to 3 ratio with some surfactants and wetting agents. What am I missing in this process?

Thank you in advance,

Nina Geller
- Memphis, Tennessee


Nina, You can try the following formulation for your application: Sodium hydroxide 7-9 oz/gal Ethylenediamine 15-17 oz/gal m-Nitrobenzene sulfonic acid 5-7 oz/gal temperature 165-175 F Good luck! Ling

Ling Hao
- Grand Rapids, Michigan


Nina Geller Memphis Tn: I like a product called B-9 By Metalx [a supporting advertiser]; across the board its the best that I have used

Chris Snyder
plater - Charlotte, North Carolina


Please also see our FAQs on Stripping of Electroless Nickel.


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