Powder spraying process, also known as powder coating, is a new coating process developed rapidly in recent decades. Experiments began in some countries as early as the 1940s, but progress has been slow. In 1954, Germany's jaime successfully coated polyethylene with fluidized bed method. In 1962, France's symes company invented powder electrostatic spraying, powder coating began to be formally adopted in production. In recent years, due to the attention of various countries to environmental protection, the powder coating without pollution to water and atmosphere has developed rapidly.

Prominent advantages

1, a coating can get a thick coating, such as 100 ~ 300 m coating, with ordinary solvent coating, about 4 ~ 6 times, and powder coating can reach this thickness. The corrosion resistance of the coating is very good.

2, the powder coating does not contain solvents, no waste pollution, improve the labor health conditions.

3, the use of powder electrostatic spraying and other new processes, high efficiency, suitable for automatic assembly line coating, powder utilization rate, recyclable use.

4, in addition to thermosetting epoxy, polyester, acrylic acid, there are a lot of thermoplastic lipid resistance can be used as powder coating, such as polyethylene, polypropylene, polystyrene, fluorinated polyether, nylon, polycarbonate and all kinds of fluorinated resin.

Powder coating began to be used for protection and electrical edge, with the development of science and technology, has been widely used in the automotive industry, electrical insulation, corrosion resistance chemical pumps, valves, cylinders, pipes, outdoor steel components, steel furniture, castings and other surface coating. The experimental study of powder coating began in China in the 1960s and has been applied in production. Development has been widely used.