Engineers Edge Powder / Powdered Coating Review - Engineers Edge

Powder / Powdered Coating Review

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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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