The fluorocarbon spray coating is a coating made of polyvinylidene fluoride resin nCH2CF2 baking (CH2CF2)n (PVDF) or a metal aluminum powder as a coloring material. Fluorine/carbon bond bonding in the chemical structure of fluorocarbon binders This structure with short bond properties is considered to be the most stable and strong bond in combination with hydrogen ions, and the chemical structure is stable and strong so that the physical properties of the fluorocarbon coating are different from those of the general coating. In addition to the abrasion resistance in terms of mechanical properties, impact resistance has excellent performance, especially in harsh weather and environment, showing long-term anti-fade and anti-ultraviolet properties. In the early 1960s, it began to be used in engineering plastics for wires and cables. In 1965, Pennwalt Chemical Company of the United States first synthesized polyvinylidene fluoride-based materials and metal particulate aluminum powder into architectural finishes, also known as metallic paints. Kynar500 is a trademark. As a result, the world manufacturers have started to use Kynar500 to manufacture their own fluorocarbon paint finishes to meet the needs of high-rise building interior and exterior aluminum coating, wide color selection, beautiful and solemn appearance, and durability for many magnificent places around the world. The curtain wall building adds brilliance. The coating manufacturer's guarantee of coating life has begun to develop for 10 years and 15 years to guarantee 20 years. American research institutes have tested and tested fluorocarbon coatings and super-coatings and general coatings. The coated samples were placed in the hot sun of Florida, USA, and exposed to the harsh environment of humid salty air for 12 years. It proves that the stability and durability of fluorocarbon coatings are 30 and 80% higher than the other two coatings. Fluorocarbon coatings are guaranteed to be used in a variety of harsh environments. Many fluorocarbon coating manufacturers around the world generally use Kynar500 or Hylar5000 as the base material for bismuth carbon coatings. There are no formal certified manufacturers in China. The main manufacturers of fluorocarbon coatings are: 1. British 1CI company; 2. US PPG company; 3. US Valspar (Washba) company; 4. DNTSingapore (Greater Japan Paint Singapore); 5. Japan Kawsai (Kansai) coating company; 6. Korea Koreachemical company ;7. Taiwan Fengyuan Paint Company; Fluorocarbon coating technical requirements and standards Fluorocarbon coating is a high-grade surface coating process. The quality of the whole process is extremely strict. In addition to the fluorocarbon coating manufacturer, it is necessary to obtain a quality license to produce Kynar500-based fluorocarbon coatings. The process, including the pre-treatment process, the spraying process to the curing process, requires strict quality control to ensure the quality of the aluminum coating. In the fluorocarbon coating industry, the current American Manufacturing Association Standard AAMA-605.02.90 is the main basis. This spraying standard is recognized as the main international standard for checking the quality of coating. The following are the main indicators of fluorocarbon spraying in the AAMA-605.02.90 standard. In the AAMA standard, the South American state is used as a test standard in many places because the climate there is known for its humidity, high temperature, and direct sunlight, so it is considered to be a harsh environment for coating quality inspection. There are also some inspection standards similar to the American AAMA-605.02.90 standard, which are also used to judge the quality of fluorocarbon coating. They are: 1. British BS6496-1984 standard "construction aluminum alloy profiles, coating standards for plates". 2. German GSBRAL-RC6311994 standard "Building aluminum quality inspection standards. Metal coating standard 4. South Africa SABS-1993" building outdoor aluminum coating standard 5.Switzerland" construction industry uses aluminum coating standards American Construction Manufacturers Association Standard (Excerpt) AAMA-605.02.90 Fluorocarbon spraying equipment and process The performance of the fluorocarbon coating itself is determined. The spraying equipment must ensure excellent atomization effect, ensure the uniformity of the sprayed layer, and the distribution of the metal particles in the fluorocarbon coating directly affects the appearance of the coating. Uniform coating, excellent quality fluorocarbon coating with metallic luster, bright color, obvious three-dimensional sense. The use of fluorocarbon spray coatings on unsuitable spray equipment can result in uneven color, shadows on the surface or poor coating. It greatly affects the decorative effect of fluorocarbon. In order to achieve good spraying effect, high-voltage electrostatic electric spray guns are used. France, the United States, Japan, Germany and other countries produce various types of various types of spray guns. Each has its own characteristics. The fluorocarbon spraying process uses multi-layer spraying to take full advantage of the durability and weather resistance of Kynar500 metal lacquer. From the front surface treatment of aluminum to the spraying process, the quality must be strictly controlled. The final product must reach the US construction industry. Association AAMA-605.02.90 standard. 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