the way use powder coating

Powder coating in automotive parts application began in the middle of the 1970s, such as for suspension components, engine blank body, oil filter, air purifier and brake pipe and other 

components, the preferred varieties is epoxy powder coating; powder coatings for doors and windows components, windshield wipers, luggage rack, bumpers and other external metal components, polyester or acrylic for system optimization. These powder coatings are usually low gloss black or dark gray products. Epoxy powder coatings with excellent adhesion, mechanical properties, resistance to stone impact resistance, chemical resistance and corrosion resistance, these characteristics can be achieved at low temperature (130 degrees C) after 15min curing. 

For parts of the painting under the hood, which can meet the use requirements under extreme environment. By blasting the cast iron engine block directly with epoxy powder coating, short wave infrared fast curing (160 DEG C, 8min), then the key parts of the cylinder head surface machining, achieve micron level tolerance degree, is suitable for sealing surface of the positioning pad, 

coating requirements can withstand high speed machining, does not appear shattered, roll layer or the surrounding fin and other defects. Light stabilizer is a kind of material which can improve the stability of molecular material. It can prevent the aging of the polymer material and increase their service life.

Light stabilizer to inhibit or reduce photodegradation, polymer and composite material light performance enhancing substances, because most of the light stabilizers absorb ultraviolet light, so habit is often the this kind of substances known as UV absorbers. Light stabilizers are very significant for preventing the aging of composite materials and prolonging their service life, and the amount is very small, generally only 0.01% to 0.5% of the polymer mass. Thermoplastic 

powder coatings began to appear in 1950, it was dissolved in melt at the temperature of spraying, and solidified into a film at the time of cooling. Because the processing and the spraying method are simple, the powder coating can only be heated and melted, and the flow is smooth, the cooling or the extraction can be solidified into a film, and the complicated solidification device is not needed. 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, commonly used in powder coating still showed some unique properties, including powder coating has excellent resistance to solvent; poly (vinylidene fluoride coatings with outstanding weathering resistance; polyamide has excellent wear resistance; polyvinyl chloride with a better price / 

performance ratio; the powder coating has the appearance beautiful, artistic advantages. These characteristics make thermoplastic powder coatings in a large proportion of the paint market.