Electroplating has been a popular and effective coating process for many years. As with any industrial coating process, electroplating has made significant advances over the past three decades. Today, plating options like electroless nickel plating give professional coaters the ability to tailor coatings to specific applications. In this guide, we will present some of the many advantages of an electroless nickel (EN) plating process called double-layer or “duplex” EN coating.

Electroless Nickel Plating vs. Duplex Plating

Electroless nickel plating is the process by which a metal substrate is coated with a thin layer of a nickel alloy using chemical baths and catalytic processes to achieve the desired coating. Unlike traditional electroplating finishes, no electrical current is passed through the chemical baths; instead, complex chemistry is essential in coating the substrate with an appropriate nickel alloy layer, such as nickel-boron or nickel-phosphorus.

Duplex EN coating takes the electroless process and adds