Application of water-based coating in railway car

In recent years, with the introduction of high-speed EMU technology and the increase of domestic demand for EMUs, rail transit equipment manufacturing industry, including EMUs, ordinary railway passenger cars, subways, light rail, etc., has been developed rapidly. In order to enhance the anti-corrosion and decoration of rail car body, the car body must be painted. According to statistics, about 20000 tons of coatings are required for the new construction and renovation of domestic rail cars every year. Based on the calculation of more than 50% solvent content, more than 10000 tons of solvent coatings will be discharged into the atmosphere every year online coatingol.com. Therefore, solvent coating will eventually be replaced by water-based coating due to high VOC content and great harm to human body. However, the construction process of using water-based coating system for railway car body in China is not perfect. In developed countries, powder coating, 100% solid content liquid coating and water-based coating have become the mainstream coating system of railway vehicle manufacturing industry, among which water-based coating is more and more widely used. Under the expectation of increased railway investment, the peak of high-speed railway mileage will come in 2019. According to the calculation, the mileage is expected to reach 4500 / 3000 km from 2019 to 2020, the demand for railway equipment is expected to grow, and the industry boom is on the upward trend. Under the background of steady economic development and national policy support, the future green and energy-saving coatings market will present greater development space.