The first is the protective paint aim to prolong the life of the workpiece spray processing sales, followed by decorative, to achieve beautiful and pleasant. Once again, special purpose, in order to achieve specific properties. Such as: sound insulation, thermal insulation, fire protection and so on. Depending on the purpose and requirements of the painting, there are several layers of paint coating composition, including primer, putty, paint varnish and so on. Underlying paint: the workpiece to be coated with the role of the body in direct contact with the underlying coating, the primer layer is to strengthen the adhesion between the coating and the body, strengthen the protective properties of the coating. In addition to black metal before loading should phosphate, non-ferrous metals should be oxidized before painting. Putty: For rough body spray processing quotes, using a putty has many shortcomings, such as construction problems, reduce the binding force of the body, such as coating. The main purpose is to increase the topcoat layer product gloss, for the outermost coating layer. Fluorocarbon coating as a means of high-grade surface coating process, the quality of the whole process is extremely stringent requirements, in addition to the fluorocarbon coating manufacturer required to obtain permission to produce quality Kynar 500 PVDF paint as the base material, the paint manufacturer's entire surface treatment spraying processing process, including pre-treatment process, spraying process are subject to the curing process has strict quality control to ensure the quality of the aluminum coating. Fluorocarbon coating industry in today's American Architectural Manufacturers Association standards to AAMA a 605.02.90 is mainly based on the spray standards, is recognized as a major international inspection coating quality standards. The following is a 605.02.90 AAMA standards of the major indicators of fluorocarbon coating. Spraying in AAMA standards, many references to the United States in South Florida as a test standard, because that is where the climate was humid, high temperature, direct sunlight is known, and therefore considered to be the coating quality inspection in harsh environments. Some of the world and the United States similar to AAMA-605.02.90 standard inspection standards, are also used to determine the fluorocarbon coating quality. They are: 1. British BS6496-1984 standard "building aluminum extrusions, sheet coating standard" 2. Germany GSBRAL-RC 631 1994 standard "quality aluminum construction inspection standards 3. Australia AS3715-1989 standard" metallic coating material standard "4. South Africa SABS a 1993" Architectural Outdoor aluminum coating standard "5 Switzerland" construction use Aluminum paint standard "quality spray processing 1994 | Sand painting hung hardware appliances (certified) |. spray processing provided by the Dongguan City, Sha Hong Hardware Appliance Co., Ltd., Dongguan City, Sha Hong Hardware Appliance Co., Ltd. (www.dgshahong.com) is leader in Dongguan, Guangdong, spraying equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In the sand painting hung hardware appliances leadership with the staff warmly welcome all inquiries negotiations, Chong Hong Hardware Appliance sand spraying a better future.