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topic 11709

Electroless and electroplated nickel


I would like to ask why electroless nickel is more corrosion resistant than electroplated nickel?

Max yung
- Hong Kong


Electroless Nickel uniformly plates / covers all the intricate portions of the component that is being plated. In a way it covers/closes all pores of the underneath substrate. Once the entire area is covered, the plating rate goes slow.

Since the entire area is plated/covered, it is corrosion resistant. In electroplating, there is no uniformity on the plating surface. This depends on the plating current density etc.,

Hope I answered your question.

- Bangalore, INDIA


The difference in corrosion protection is that Electroless Nickel is in reality an alloy deposit, mainly phosphorus. In order for the Electroless Nickel to achieve its potential as a better corrosion protection you need at least 25 microns.

I hope this helps,

Enrique Segovia
- Monterrey, Mexico

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