It is important to note that the suitability of powder coating for a particular material may depend on its specific characteristics and the coating process being used. In some cases, it may be possible to apply a powder coating to a material that is not typically suitable, but this may require the use of special coatings or pretreatment processes. That being said, there are generally some product categories that cannot be powder coated, such as
- Plastics, as the powder does not bond well to the surface and may cause the plastic to become brittle.
- Wood, as the powder does not adhere well to the surface and may cause the wood to become damaged.
- Glass, as the coating process may cause the glass to become brittle or shatter.
- Non-metallic materials like rubber, fabric, or paper, as powder does not bond well to these surfaces.