How Powder Coating Works

Powder Coating involves a process known as electrostatic spray deposition.

A clean metal workpiece (i.e. your product or component) is ‘earthed’ and given a positive charge by attaching a wire to ground it.

A spray gun using compressed air negatively charges pigmented powder particles as they are emitted from the gun. 

The particles are pulled towards the positively-charged surface of the earthed workpiece. 

This magnetic-like pull ensures that the particles adhere to all surfaces of the workpiece a (including nooks) giving a consistent coating. 

The workpiece is then placed or hung in an industrial oven for approximately 20 minutes at 180 degree celsius. This heat causes a chemical reaction that ‘cures’ and melts the powder to produce a beautiful finish that is tougher and more durable than conventional paint.

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