The authoritative public forum
  for Metal Finishing since 1989
  

  -----

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.

V.RAMANAND KINI
- 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