Analysis of the four application areas of water-based industrial coatings in China: automobile, high-speed rail, heavy anti-corrosion, container

China Coatings Online News Information:
paint is water-based thinner, no organic solvent coatings. With energy-saving and environmental protection, non-combustible, ultra-low emissions, low-carbon health and other characteristics, can be widely used in wood, metal, industrial coating, plastic, glass, building surface and other materials. In the long run, the coating of water-based coatings is the trend of future development.China's water-based coating application area analysis analysis, paint enterprises have developed water-based industrial coatings is undoubtedly the greatest good for the environment, but also can lower the current market prices of foreign water-based industrial coatings brands, benefiting domestic consumers. However, water-based industrial coatings is a high-tech environmental protection high-end products, production brushing process is also very different, paint enterprises should be in this area step by step, can not rush to success, otherwise let immature water-based coating products flow to the market, the entire water-based industrial coatings industry development and operation will be affected. The following is an analysis of the application areas of water-based coatings in China.water-based industrial coatings are mainly used in automobiles, railway vehicles, bridge pipelines, steel structures, containers and other fields, the current level of water-based industrial coatings in China compared with industrial developed countries there is a big gap.automotive coatings:with the rapid development of the automotive industry, the use of automotive coatings is also growing. Since Shanghai GM launched its first water-based automotive coating production line in Shanghai in 2008, the new production line of domestic automotive coatings has been designed with water-based coatings, which have become the mainstream of automotive coatings. Automotive paint mainly includes primer, medium coating, finish paint, which is divided into color paint and metal flash paint. The hydration process of automotive coatings is carried out step by step from bottom to surface. As early as the 1960s, Europe, the United States and other developed countries have taken the lead in the use of water-based electrophoresis primer, the current primer has more than 90% of the use of water-based paint, 88% of the car coating has also adopted water-based technology, water-based metal flash primer application of more than 65%.railway vehicle coatings:body coatings mostly use traditional solvent-based coatings, which contain a large number of organic solvents, to storage and transportation, construction inconvenience and safety hazards. Harmful gases released in the production and use of solvent-based coatings will have a negative impact on the health of production staff and the atmospheric environment. In developed countries, powder coatings, 100% solid liquid coatings, water-based coatings have become the mainstream coating system of railway vehicle manufacturing industry, in which water-based coatings are more and more widely used. At present, China's railway truck field has successfully applied Hua Leopard water-based industrial coating vehicles more than 13,000 vehicles, products after more than 5 years of verification, can reach solvent-based product quality standards; The development of the water-based coating system of railway locomotives and buses has been completed by Hua Leopard Coatings Company, and has begun on-line testing after coating. The process of localization and hydration of coatings in the fields of moving cars, high-speed rail and rail transit has also entered the overall work plan of iron.anti-corrosion coatings:daily life can be seen everywhere metal products corrosion rust, resulting in waste of resources, energy, economic losses, and sometimes even endanger personal safety. According to some corrosion loss data published by the United States, Japan, Canada and other countries, the direct economic losses caused by corrosion account for 1% to 4% of the total output value of the national economy, the annual corrosion of rusty steel accounted for about 20% of the annual output, about 30% of the equipment due to corrosion and scrap. China's annual economic losses caused by metal corrosion accounted for about 4% of gdp, such an alarming loss, stimulate the development of anti-corrosion coatings. The development of environmentally friendly industrial heavy anti-corrosion coatings is a high-tech project that many coating experts in developed countries are actively exploring, and is a new field in China. In some typical markets for heavy anti-corrosion coatings, such as infrastructure, oil and gas, electricity, barrel tanks, marine and chemical industries, the use of water-based coatings is increasing. Water-based alicic acid system, water-based epoxy system (epoxy cloud iron coating and zinc-rich primer), water-based inorganic zinc-rich system, water-based epoxy ester system, etc. are used in the field of heavy corrosion prevention.water-based container coatings:currently the world's annual container production of more than 3.5 million TM, the annual need for coatings about 400,000 tons, worth about 6 billion yuan. At present, most of the container coatings used in the world are solvent-based, container production and painting process, will produce a large number of harmful gases, not only endanger the health of paint workers, but also cause environmental pollution. With the increasingly stringent environmental regulations, the International Committee for Container Standardization on the environmental protection and hygiene of container coatings put forward higher requirements: such as coatings must not contain Cd, Pb, Cr, Hg and other heavy metals; The use of non-toxic pigments such as phosphates; High solid score, low VOC, etc. Acrylic paint instead of chlorinated rubber paint, box primer special paint has also begun to gradually advance. Water-based container coatings have been piloted in China.