What is Powder Coating, and How Does it Work?
Powder coating is a commonly used finishing process in the manufacturing industry.
The almost limitless range of available colors and textures makes this process ideal for decorative purposes, but it is also widely used for its durable and protective properties. Keep reading to learn exactly what powder coating is, how it works, and the benefits it provides for metal products and surfaces.
What is Powder Coating?
Powder coating is a dry finishing process which is a popular coating method for metals. Used for a variety of products, powder coating is a durable and efficient coating process used widely by industries since it was first introduced in the 1960s.
Powder coating can be used as both a protective and decorative finish, with an almost unlimited range of colors and textures available.
Powder coating uses a resin-based material combined with pigment for color, as well as curatives and other additives. These ingredients are mixed and melted together, then ground into a fine powder similar to flour. The ‘powder’ is applied to the metal surface of a product and is then heated to adhere it to the surface.
The Powder Coating Process
Powder coating is a simple process based on science. The coating material is given a negative electric charge when forced through the spray gun. This charge causes the coating to cling to the surface of the product, resulting in less overspray and a more consistent finish. After coating, heat is applied to melt it, resulting in a hard, durable finish.
Here’s a basic rundown of the powder coating process:
- The surface is prepped for coating, usually by sandblasting to remove any rust, oil, or other substances, and provide a clean, even base.
- A spray gun applies an electrostatic charge to the powder particles, which then cling to the product as they are applied.
- Heat is used to melt and cure the powder particles, resulting in a durable finish.
Why Use It? The Benefits of Powder Coating
Powder coating is an incredibly durable, high-quality finish. When applied correctly, it helps prevent rust and corrosion on metal products and surfaces. Powder coated products are more resistant to damage from impact and will resist chipping, scratching, fading, and other common wear and tear issues.
Start with the right tools
Powder coating provides a quality, durable finish for your products. For the best in powder coating spray equipment, booths, and more, check out the product lines offered at High Point Pneumatics.