Top facts about electroplated plastic parts

What exactly is electroplating? It is a process by which non-conductive plastic parts are coated with a thin metal layer to create conductivity, combining low weight with a metallic look. This makes it extremely popular wherever designers want metal aesthetics and functionality without the cost or mass of solid metal.

What is the process?

To make plastic plateable, the surface is cleaned and chemically or mechanically treated, then given a conductive layer, for example via special paints or an initial metal strike. The parts are then immersed in a plating bath containing metal ions such as nickel, copper, gold or silver, and an electric current deposits a uniform metallic coating to the plastic. Gold, silver, copper and zinc nickel plating are common variants of this process. Each of these metals provides both corrosion resistance and electrical conductivity.

Who carries it out?

Electroplating is a specialised industrial technique offered by companies such as https://www.swmf.co.uk/surface-coatings/zinc-nickel-alloy-plating. There are relatively few specialists operating, despite the high demand from major industries for this service

What are the benefits?

Key advantages include reduced component weight, enhanced appearance, better corrosion resistance and improved electrical and thermal properties. Typical uses range from automotive trim and interior details to fashion hardware, housings for consumer electronics and plumbing fittings.

What preparation is needed?

Successful plating depends on careful surface preparation and thoughtful part design, especially for complex geometries and thin-walled components. Poor adhesion, warping, or uneven coverage can occur if the process, fixtures, or bath conditions are not optimised for the specific plastic and application.