2016/6/28 9:22:23

powder coating performance gets better

Powder coating composition, which can be produced in the first experiment of melting film has been in 1940s. These are the thermoplastic powders. It's almost no similar to today's coatings. 1952, fluidized bed is the first time to be able to paint the number of industry. Then and now, the layer thickness is greater than 200 microns, which is 3 to 4 times, and produced as usual electrostatic coating applied to thick layer. In contrast to the hitherto used, purely thermoplastic adhesives (polyamide, polyvinyl chloride in the early 60's) is a crosslinked epoxy resin market, which constitutes the foundation for future development.

Most of the raw materials used in powder coatings are common polymers in the market, and most of the conditions can meet the requirements of the use of performance. But there are some disadvantages, such as high melting temperature, low color level, and poor adhesion to 

metal surface. Nevertheless, the commonly used thermal plastic powder coatings is still exhibit some unique properties, including polyolefin coating has excellent resistance to solvent; poly 

(vinylidene fluoride coatings with outstanding weathering resistance; polyamide has excellent wear resistance; PVC has a better price / performance ratio; thermoplastic polyester paint has 

the appearance beautiful, artistic advantages. These characteristics make thermoplastic coatings in a large proportion of the paint market.

Powder coating can be applied to black surface. Wear resistance, corrosion resistance, chemicals and stains. Color and texture of a variety of product hardness and durability, the impact 

of slow distortion and deformation. And coating thickness: 50-80 micron guarantee, while the traditional coating failed to pass thickness. Excellent adhesion and flexibility are good resistance to chemical and mechanical, and the electrostatic layer gives significant paint thickness uniformity.

Heat is, again can not cure the heat of melting. Resistance to extreme weather tests, such as 

sunlight, UV, heat, cold and wet effects. (apply to polyester paint). This coating is covered with rough surface, products or smooth edges and round biscuits and sharp edges.


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