Metallization for Metal and Plastic Parts

Last Updated on October 11, 2023 by assistant

Metallization is one of the popular surface treatment options on plastic and metal parts . Compared with metal, plastic is not that strong and durable. Metallization can make its surface will become more durable. This article will introduce you to the process of metallization, types, advantages and limitations, and applications.

What Is the Process of Surface Metallization?
Surface metallization is the process of coating the surface of a part with a layer of metal by using electrodeposition. The anode and cathode are placed in a chemical bath and exposed to a continuous charge. During this process, anions move to the anode, while cations are transferred to the cathode, after which a metal layer covers the desired part.

Why Do We Choose Metallization for Metal and Plastic Parts?
1. Aesthetics.
By metallizing the surface of plastic parts, this can not only enhance its wear resistance, but also make the surface of the parts smoother and glossier. For example, car logos and other consumer products are popular surface metallization applications. For metal parts, this post-processing method also enhances their aesthetics.

2. Enhance physical and chemical properties. Adding a copper or nickel metal layer on the surface of metal parts will enhance its tensile strength, corrosion resistance and electrical conductivity. Surface metallization is one of the surface treatment methods suitable for parts with high requirements on appearance and the end use. Wide applications include antennas and electrical components.

What Are the Limitations of Surface Metallization:

Surface metallization has various benefits, but it also has certain limitations.

1.Processing environment. The process of surface metallization usually requires the use of various corrosive chemicals. For workers, this process has certain risks. Therefore, the processing environment needs to maintain ventilation and set up some safety facilities.

2.Multiple processing. Surface metallization needs to be processed in different baths serveral times, so an electroplating project takes a long time. Only experienced workers can skillfully carry out electroplating treatment and guarantee its quality and efficiency. The quality after plating is not high enough for amateurs.


Common Metallization Types:
1. Chrome plating
2. Galvanized
3. Tin plating
4. Vacuum coating
5. Color plating

Wide application of surface metal treatment:
1. Car
In the automotive industry, surface metal treatments are used in a wide range of applications, including bumpers and prototype hubcaps.

2. Medical
The applications in the medical industry include: replacement joints, screws, forceps, and radiological components.

3. Prototyping
As for low-volume prototyping through CNC machining and 3D printing, surface metal treatments can improve aesthetics and functionality.

Ruitai’s Surface Metallization and Processing Services
Ruitai offers one-stop processing services, including CNC machining, 3D printing, sheet metal processing, injection molding, die-casting, and surface metal treatment services.