The finish is also long lasting and near pollution-free, as the waste dry spray that is applied at the beginning of the process can be recovered. Consumer grills and barbeques, stadium seating, outdoor railings, golf clubs, farm equipment, exercise equipment and many other varieties of consumer and industrial products undergo powder coating.
The industrial oven manufacturing industry provides the powder coating services industry with tools for the thermal processing stage of treatment; many products are powder coated, so the industry requires many ovens that can treat products efficiently and in high volumes.
The process of powder coating is mostly standardized. A technician will begin with the product that needs to be treated. It must first be cleaned, sometimes sandblasted and free of oil and paint before any treatment can be applied. Once cleansed of unwanted elements, a special applicator gun is used to coat the product with pigmented thermoplastic particles. When the product is coated, it is sent to a powder coating oven where it is heated for two to ten minutes.
The thermoplastic particles begin to melt and gel, and as they cure they form the product’s new protective coating. Powder coating ovens can come in several different forms. For industries that powder coat the same kind of product over and over, a conveyor oven system, which slowly moves products through a heated conveyor channel, allows for a steady stream of products to be treated continuously.
Batch ovens also make it possible to process several products efficiently. Depending on the size and configuration of a given batch oven, it may be able to treat products of different sizes simultaneously. Such a feature would be to the advantage of a company that produced custom powder coated products.