Powder Coating

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Powder coating is one of the high quality finishing process used for thousands of products ranging from heavy machinery to household appliances. This type of coating is applied as a free flowing, dry powder. A process called electrostatic spray deposition (ESD) is typically used to achieve the application of the powder coating to a metal substrate and is comparatively tougher and more durable than the conventional liquid paints.

POWDER COATING PROCESS:

The UNIT 2 of Avon coatings plant is devoted for powder and liquid coating. To ensure remarkable quality and high finish, the plant is deployed with the latest technologies and skilled man power.

  • The plant is supported by 11 tanks for pretreatment (PT) process which have PLC controlled transporter and shot blasting unit.
  • A process called electrostatic spray deposition (ESD) is typically used to achieve the application of the powder coating to a metal substrate. This application method uses a spray gun, which applies an electrostatic charge to the powder particles. This process is carried out in back to back powder coating booth of the plant.
  • After application of the powder coating, the parts enter a curing oven where, with the addition of heat, the coating chemically reacts to produce a high density, rough and tough film.
  • The above technique is carried out by baking the coated product in conveyorised oven having variable speed to accommodate different sizes of components.
  • A separate line for pretreatment (PT) of aluminum has also been installed.

ADVANTAGES OVER CONVENTIONAL COATING:

  • The main difference between a conventional liquid paint and a powder coating is that the powder coating does not require a solvent to keep the binder and filler parts in a liquid suspension form
  • Powder coating is more durable compared to conventional finishing as it is resistant to the impact of moisture, chemicals, ultraviolet light, and other extreme weather conditions. Apart from all these properties, it appears to look great!

PLC Operated PT line with transporter
Camel back oven & Camel back oven
Back to back & Electrostatic gun for powder coating
Dust proof cabin for material movement.
Process flow of powder coating