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Industrial
Coating Types Knowledge Menu
Powdered
/ Powder Coatings Services
Industrial
Finishing Services
Powder / Powdered Coating - Powder coating material is applied
to parts using an electrostatic or compressed air
techniques. The applied powder coat is then heated (cured) to the melting point
of the power, which
then the powdered coating flows to form a smooth thin film. After cooling, the
powdered coating dries to form a durable finish, which is very resistant to scratches, cracking, peeling, UV rays and
corrosion.
There are two types of powder coatings: Thermoplastic and Thermoset. Thermosetting incorporates a activator into the coating formulation. When the powder is baked to an elevated temperature, a reaction the powder polymer occurs and improves the mass performance of the powder coating properties. Thermoplastic application does not have any additional chemical reactions during the baking process, however will flow-out or leach onto the final coating.
The most common polymers used are polyester, polyester-epoxy (known as hybrid), straight epoxy (Fusion bonded epoxy) and acrylics. Typical powder coatings are applied to consumer and
industrial products such as; bicycles, lawn furniture, office fixtures and
furniture, automotive products, refrigerators, clothing washing and drying
machines. Powdered coatings may present a cost saving alternative to
petroleum based paints with respect to energy savings, labor costs, rework
costs, material usage, waste disposal, and quality.
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