Thermoplastic powder coating with heat to soften, cooling and energy curablefilm-forming properties, primarily physical film-forming process of melting andplasticizing. Thermoplastic powder coating applied earlier, as early as in the mid 1940 of the 20th century, Europe has used for thermoplastic powder coatingsresearch and experimental work in the development of a more than 30-yearhistory. Characteristics of processing made simple, the film has excellentchemical resistance and good mechanical properties, some varieties withoutstanding wear resistance lubricity, prices are generally lower. But this typeof resin powder is difficult to smash granularity is coarse and low gloss andleveling of coating film, the mechanical intensity is also less than ideal, andmetal-poor adhesion, drum primer is required to use.

　　In addition, in order to expand the scope of applications for thermoplasticpowder coatings, further improving the heat resistance and rigidity of resins as well as decorative. Now, in addition to adding a variety of auxiliary materials,resin modification approach can be adopted to achieve the desired effect.Recently, thermoplastic powder coatings there are many modified varieties, whichimproves coating film luster, hardness, adhesion, flexibility and performance tomeet a number of coating products requirements.

　　Thermoplastic powder coatings are generally paint a completely different form,it is a fine powder of State exist. Because it does not use solvent, so calledpowder coating. The main characteristics of powder coating: with harmless,efficient, resource-saving and environment-friendly features.

　　Powder coating is a new, free of solvents, 100% solid powder coating. With nosolvents, no pollution, saving energy and resources, reduce labor intensity andhigh mechanical strength of coating film.

　　It has two main categories: thermoplastic and thermosetting powder coatingpowder coating.

　　Thermoplastic powder coatings are made of thermoplastic resins, pigments,fillers, plasticizers and stabilizers and other ingredients together.Thermoplastic powder coatings include: polyethylene, polypropylene, polyester,PVC, chlorinated polyether, polyester, polyamide and cellulose.

　　Thermosetting powder coatings are made of thermoset resin, hardener, pigments,fillers and additives, and other components. Thermosetting powder coatingsinclude: epoxy resins, polyester and acrylic resin.

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