3. In addition to electricity and dust: plastic is an insulator, the surface resistance is generally about 1013Ω, easy to produce static electricity. After easily absorbed charged fine dust in the air and deposited on the surface. Due to electrostatic adsorption of dust removed by the general blowing very hard, Long asphalt coating plants, the use of high pressure ionized air flow at the same time better effect in addition to ESP. 4. Spray: plastic coating thickness of 15 ~ 20μm, Long asphalt coating plants, usually 2 to 3 spraying to complete. After spraying a dry 15min, and then a second coating. Need bright surface must also sprayed clearcoat. After the coated article substantially no effect on flame retardancy. What is the method for coating the surface of the hardness measurement approaches spray coating layer by gun or disc atomizer, by means of pressure or centrifugal force, spraying asphalt plants, dispersed into uniform and fine droplets, applied to be coated. Air Spray can be divided into various derivative way airless spray, electrostatic spray and spray form of the above-mentioned basic, such as the large flow of low pressure atomized spray, thermal spraying, automatic spraying, multiple spraying. Long asphalt coating plants, sand hung hardware appliances spraying, spraying asphalt plants provided by the Dongguan City, Sha Hong Hardware Electric Co. Dongguan City, Sha Hong Hardware Appliance Co., Ltd. (www.dgshahong.com) located in Dongguan City Liaobu Xixi Village mallard 309. Scraps and development in the wave of market economy, the current Hong Hardware Appliance spraying sand has a high profile in the spray equipment, enjoy a good reputation. Hong Hardware Appliance spraying sand made the whole network business alliance certification, marking our service and management level has reached a new height. Hong Hardware Appliance spraying sand all employees willing to work with all people of insight and common development, for a better future.