Polyurethane powder coating with the most unique properties

Powder coatings are solid powder-like synthetic resin coatings consisting of solid resins and pigments, fillers and additives. In addition to ordinary solvent-based coatings and water-based coatings, its dispersion medium is not solvents and water, but air. It has the characteristics of solvent-free pollution, 100% film-forming, low energy consumption

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powder coating is in the state of fine powder, although not as numerous as solvent-based coatings, but can be used as powder coating polymer resin is also many. The total can be divided into thermostation type and thermoplastic type two categories. Among them, thermo-solid polyester powder coatings compared with other types of powder coatings, has a unique nature, can be applied to a number of fields, in the powder coatings accounted for a growing proportion, is developing into the mainstream powder coatings.
polyurethane powder coating has excellent weather resistance, excellent physical and physical properties and corrosion resistance, coating film bright plump, wear-resistant, scratch-resistant, solvent-resistant, good leveling, strong adhesion. In addition, because polyester resin with polar groups, so the powder rate is higher than epoxy resin, the baking process is not easy to yellow, paint film plump, light color and other characteristics, with good decorative. Compared with other types of powder coatings, polyurethane powder coatings have the following characteristics:
A, melting flow, melting viscosity is relatively low, especially the sealing agent before unsealing can not afford any chemical reaction, so that the powder coating has enough leveling time, coating film leveling is good. The realization of the technology of internally enclosed disterone curing agent makes this powder coating almost zero pollution to the air.
B, the adhesion to the coating is good, do not need the bottom coating.
C, coating preparation range is wide, can be made with different performance requirements and curing speed of the coating.
D, coating of the physical and physical properties and chemical resistance is good.
In today's environmentally friendly environment, the most important factor in the rapid development of polyurethane powder coatings is their virtually non-volatile organic chemical (VOC) content, making it a better choice of environmentally friendly alternatives in a variety of applications, and thus driving the overall consumption growth of the polyurethane coatings market. Polyurethane powder coatings are mainly used in outdoor furniture, in the ordinary metal surface coating industry is its largest market, accounting for about 50% of the total market share. Polyurethane powder coatings are commonly used in household equipment because most home appliance coating companies prioritize smooth coatings. In Europe, aluminum alloy materials on many buildings are coated with polyurethane powder coating, the advantage of which is that in the next 5 to 7 years, the preservation rate can reach 65% to 85%, after 10 years, the preservation rate can still reach 50% to 65%. After 10 years, the thickness of the coating film is reduced by only 2 to 3 m. In addition, in automobiles, motorcycles, instrument housings and other fields can be
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