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Electroless Nickel Activation



2002

I have to zinc plate (alkaline bath) on electroless nickel plated parts. The question is: what is the best activation procedure to avoid any lack of adherence? I will appreciate any help.

Miguel Hernandez
- Puebla, Mexico


2002

After a dip in about 50% Hydrochloric Acid, and without any rinsing, plunge into a very strong (Woods) Nickel Chloride Strike, 2 #/gal Nickel Chloride and 2 pints/gallon Hydrochloric Acid, 'bout 6 volts cathodic on the part, 90 seconds, room temperature, RD Anodes (remove when not in use).

robert probert



Robert H Probert
Robert H Probert Technical Services
supporting advertiser
Garner, North Carolina
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2002

I have to zinc plate (alkaline bath) on electroless nickel plated parts. The question is: what is the best activation procedure to avoid any lack of adherence? I will appreciate any help.

Puebla,

1. I think adherence problem due to nitrate contamination too high in your zinc tank.
2. or Electroless nickel tank get high nitrate.
3. Check plating time in your zinc tank , may be too long .

popat patel
Popatbhai Patel
finishing shop - Roseville, Michigan

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