08/06/2026
Caster Plating Explained
Electroplating is a key component of the caster manufacturing process. In this issue of CasterU, we provide you with everything you need to know about plating.
Caster components are plated for two reasons. First, plating protects parts from corrosion. In fact, parts that are plated corrode 100 times slower than those that are untreated. Plating also enhances the appearance of parts, which is particularly important for furniture and retail fixtures.
Zinc plating is the most common coating available. It is also the most economical and requires the shortest lead times. Nickel, chrome and antique finishes are used to meet visual requirements. In this primer, we focus on zinc.
Based on the type of electroplating, there are many possible steps in the plating process. Here is a typical zinc plating process:
Soak and Cleaning—For the electroplating process to be most successful, all components must be thoroughly cleaned. Oil residue from stamping and chemicals from heat treatment processes will prevent the adhesion of zinc plating and cause flaking. Parts are immersed in different acid and/or alkaline baths as part of electro-cleaning processes, which remove residue, debris, and scales at a micro level.
