how powder coating get its looks

Powder coating is a kind of high strength, weather resistance, corrosion resistance, excellent chemical resistance. In order to adhere to the electrostatic attraction force of powder coating, even complicated shapes, such as woven materials and skilled labor, and even without a pipe, can be a simple, uniform coating. There is no solvent and no organic solvent evaporation coating is a kind of environmentally friendly way to use organic solvent poisoning.

Most of the raw materials used are common polymers in the market, 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 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. After 1968 with the development of hybrid coatings (epoxy resin and polyester as binder), further breakthroughs.