finishing.com logo
  HOMEFAQsBOOKSHelpWantedAdvertiseContactFORUM Letter 053

The finishing.com Hotline -- Serious Education ... plus the most fun you can have in metal finishing

Jump starting electroless nickel plating onto copper and brass

-----

We are a electroless nickel plater who wants to plate brass and copper but currently have no nickel strike. After pretreatment we introduce the racks or barrel to the bath supply current to the racks (becoming cathodic ) and begin the plating process in this manner. It works, but what I need to know, are there any negative aspects or problems I could expect?

Mark Dewitt
- Rochester, New York
-----

Hi, Mark.

I can't tell you unqualifiedly that there is no downside to starting the plating of non-catalytic substrates via applying current, but I can tell you that lots of shops do it and that the technique is noted in such handbooks as Mallory & Hajdu's "Electroless Plating: Fundamentals & Applications". That volume also notes that only the hypophosphite reduced electroless nickel plating solutions have that difficulty. Good luck.

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


-----

About jump starting EN on brass, etc. I have been able to jump start EN on several materials by simply touching them with a piece of Al wire, with no power supplies required.    

Kirk McGlothlan, Engr.


ADD a Q or A to THIS thread START a NEW THREADView This Week's HOT TOPICS

Disclaimer: It is 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; 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. & DevicesUsed & Surplus


©1995-2015 finishing.com     -    Privacy    -    Search