Powder Coating
Powder coating is a type of coating that is applied as a free-flowing, dry powder. Unlike conventional liquid paint, which is delivered via an evaporating solvent, powder coating is typically applied electrostatically and then cured under heat or with ultraviolet light. The powder may be a thermoplastic or a thermoset polymer.
The Powder Coating Process
Pre-treatment: The metal surface is cleaned and prepared to ensure optimal adhesion of the powder coating.
Application: Powder is applied to the metal part using an electrostatic spray gun. The powder particles are charged and attracted to the grounded metal part.
Curing: The coated part is placed in an oven where the powder melts and fuses to form a smooth, durable coating.
Advantages of Powder Coating
Durability: Powder coatings offer excellent resistance to scratches, chips, fading, and corrosion.
Environmental friendliness: Powder coating is a solvent-free process, resulting in less waste and air pollution.
Thickness: Powder coatings can create thicker coatings without runs or sags.
Finish quality: Consistent and uniform finish with a wide range of colours and textures.
Cost-effective: Less material waste compared to liquid paint.