Pure Polyester Resin Zinc Rich Powder Coating Metallic Gold Hammer Finish

When first applied to a substrate, a thermoset powder coating has short polymer molecules. However, during the curing process, the powder undergoes an irreversible chemical cross-linking reaction, which bonds together long chains of polymer molecules. This reaction changes the physical properties and chemistry of the material and allows it to harden into a thin, even, hard finish, if the proper cure schedule is followed.

Thermoplastic powders do not require a cure cycle. Instead, the thermoplastic material only requires the time and temperature necessary to melt, flow out, and create the film-like coating. Unlike with thermoset material, which undergoes a chemical reaction during the curing stage, thermoplastic materials do not change their physical or chemical properties when heat is applied. Therefore, they can be remelted, reformed, and recycled for future coating applications.

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