What is Powder Coating?
- Powder coating is an electrostatic process which applies organic powder to metal parts.
- The powder is cured by heat which results in a hard, durable and continuous coating.
- The powder color is electrically charged by the spray gun. The part being powder coated is grounded creating an electrostatic attraction for the colored powder spray. The result is an even and uniform coating.
- After the part is coated with powder, it is moved into a curing oven. The heat creates a chemical reaction which fuses the powder particles together over the entire surface.
- The preparation is also key as the surface is thoroughly cleaned, soda or sandblasted, washed and dried. This process is more thorough than many wet paint applications which often may simply paint over old layers.
- Powder coating is applicable to most metal surfaces. Some non-metal surfaces may also be coated. Contact Us with to discuss your project needs.
Advantages over Wet Applications
- Powder coating is more durable and resistant to weather, corrosion and chemicals than liquid coatings.
- Powder-coated surfaces are more resistant to chipping, scratching and other contact damage due to the thermal bonding cure process.
- Powders also don’t run or drip, providing a more uniform coating than liquid paint.
- Powder-coated parts tend to stay bright and hold color much longer than standard spray paint resulting in a more attractive, durable, flexible and high-quality finish.
Safety and Environment
- Wet paint is flammable and often carcinogenic during application and also contain volatile organic compounds (VOCs).
- VOCs in the wet painting process can also cause industrial pollution concerns.
- Powder coatings contain no solvents and negligible, if any, polluting VOCs so they are more environmentally friendly than wet paint applications.
- Powder coating is a much clean process overall as the overspray can be retrieved and recycled into the process. Any unused powder can be reclaimed and stored for future use.
- Most powder coating materials are considered non-hazardous materials. Powder coatings meet all Environmental Protection Agency requirements for air and water pollution control.