The plating process for plastic and metal are different and both have different benefits to offer. Plating on plastic creates an impression of higher quality, protects against corrosion and chemical attack, increases strength, gives plastic the ability to conduct electricity. Metal plating protects metal against corrosion, provides better wear resistance, increased solderability, increased strength, decorative quality to metal and help it reduce friction. These benefits give you a clear idea of the importance of plating process for metal and plastics. Read in this blog, comparison of plating on plastics to plating on metal :