
HOME FAQs BOOKS JOBS: Help Wanted Suggestions you are here: Hotline/Forum => Letter 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
- Memphis, TN
-
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 Inc., across the board its the best that I have used
Chris Snyderplater - Charlotte, North Carolina
-
Please also see our FAQs on Stripping of Electroless Nickel.
Regards,
|
Ted Mooney, P.E. finishing.com Brick, New Jersey |