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 thermosetting polymer.

It is usually used to create a thick, tough finish that is more durable than conventional paint.
Powder coating is mainly used for coating of metal objects, particularly those subject to rough use.
Advancements in powder coating technology like UV-curable powder coatings allow for other materials such as plastics, composites, carbon fiber, medium-density fibreboard (MDF), and solid wood to be powder coated, as little heat or oven dwell time is required to process them.

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Source: Wikipedia · Image: Wikimedia Commons · CC BY-SA 4.0