A Better Process
for a Better Result

The Process of Powder Coating

The powder-coating process is divided into three basic steps: pre-treatment, application, and curing. Each stage in the process can be automated or performed by hand, depending on the specifications of the workpiece being coated.

SURFACE COATING STEP BY STEP

1. Pre-treatment:
   The condition of the workpiece’s surface prior to coating can play a major role in the end quality of the coat. For the best coating, a workpiece needs to be as clean and grease-free as possible. Sometimes, this means that sandblasting or chemical preparation are necessary. Once the workpiece is as clean as possible, it’s ready for the coating process.
2. Application:
   The only real limit to what can be powder-coated is an object’s ability to conduct electricity. This makes metals ideal for powder coating. Other materials can be powder-coated, but may require more effort and resources. In most powder coating methods, the workpiece is grounded, while the powder gets electrically charged during application, causing the powder to stick to the workpiece. At this point, the coating is still in powder form, and must be melted and cured.
3. Curing:
   Once heated, the powder begins to melt and solidify. The powder itself and the thickness of the coating will both affect the temperature and time required for proper curing. Once brought to the proper temperature for the coating to solidify, the workpiece is then gradually cooled and its temperature monitored to ensure a successful cure.