Stack of zinc-nickel electroplated metal parts used in machinery based industryOur zinc-nickel (ZnNi) plating is a co-electrodeposition generally applied in a range of up to 25 microns, depending on what you need for your specific part. Zinc-nickel chemistry is made from 12-15% nickel and the remainder consists of zinc alloy. Deposits are uniform semi-bright with a fine crystalline structure. The nickel content improves the corrosion resistance properties up to 4 times over standard zinc plating. Zinc-nickel plating is often used as a RoHS alternative to cadmium and is referred to as a sacrificial coating. Although not required, a post-chromate treatment can be applied to add additional protection.


  • • Optimal cathodic corrosion
  • • Highly resistant to thermal loads up to 248 degrees Fahrenheit (120 °C)
  • • RoHS alternative to cadmium
  • • High ductility
  • • 500+ hours salt spray protection
  • • Sacrificial

Contact our team to get started on your zinc-nickel plating project and ask about getting a free quote.



This has been a topic discussed for many years regarding a RoHS environmentally friendly alternative to cadmium plating. The idea of this finish replacing cadmium has been discussed for decades. With little push from the U.S. OEM markets, zinc-nickel has not seen a whole lot of traction.

Alternatives to Cadmium in Aerospace (5 min read)


  • • Type 1: As plated without supplementary treatment, service temperature 500F max.
  • • Type 2: As plated with supplementary chromate treatment
    • Grade A: Hexavalent chromate treatment, service temperature 250F max.
      Grade B: Trivalent chromium treatment, service temperature 375F max.
  • • Type 3: As plated with supplementary phosphate treatment (Adhesion base for primer/paint), service temperature 350F max.
  • • Unless type is specified, Type 2 shall be supplied
  • • For Type 2 plating, if no grade is specified, Grade A shall be supplied.

NADCAP Certification Assurance

If your project requires a NADCAP-certified process, you can rely on INCERTEC to get the job done right. Our certifications include AMS 2417. What does that mean for you? It provides the assurance that our processes are reviewed against strict industry guidelines, guaranteeing high-quality zinc-nickel plating services. Our processes are regularly reviewed to ensure that they are up to date and effective. These certifications are nationally recognized by aerospace industry professionals, so you can depend on our plating services when precision is an expectation.

Zinc-Nickel Plating Operations:

Minneapolis, MN

Optional Zinc-Nickel Services:

RoHs Compliant, NADCAP