In manufacturing, electrostatic powder coating is a type of finishing process during which dry powdered paint is applied to metal. By applying an electric charge to the paint particles as they're applied, manufacturers can create a permanent, high-quality finish. Dating back to the 1960s, electrostatic powder coating remains one of the most common powder coating processes today. It creates a finish similar to that created by wet paint, but offers a number of advantages in terms of finish quality and environmental issues.
Manufacturers may apply an electrostatic powder coating to many types of products. This type of finish is primarily used on metals ranging from steel to aluminum. It's also used to finish a variety of consumer goods, from wire shelving to lawn furniture. This powder coating is also used on cars and other vehicles, and remains a popular method of finishing exterior metal siding.
This product may contain a variety of materials, depending on the product and manufacturer. Many include an epoxy resin base, though some rely on polyester-based hybrid mixtures instead. While polyester reduces the risk of yellowing on a powder coated finish, it also offers less corrosion resistance. Acrylic products are used to create a powder coating with a high-gloss finish, while enamel-based versions are commonly used to finish electronic and mechanical equipment.
