Diversified development of water paint, widely used in many fields

In recent years, the term “water paint” has become a high-frequency term in the coating industry, and the country has also increased its supervision of environmental protection Intensive efforts have also put forward higher requirements for the coating of automobiles, ships, construction machinery and other fields. From the traditional mode to the environment-friendly type, the water-based coating is more like a fish in water.
Relevant ministries and commissions and local governments in my country have successively promulgated a number of policies and regulations to encourage and promote the use of water-based coatings and other environmentally friendly coatings, and restrict solvent-based coatings. Renovation, expansion and construction of paint. For a time, the industrial industry’s demand for water-based coatings has increased sharply, and environmentally-friendly and safe water-based coatings have further become a hot spot for enterprises. The application of water-based industrial paint in the industrial field has also gained More and more attention and research.
Nowadays, water-based coatings are widely used in more and more industries.
Automotive coatings
Since Shanghai GM launched the first water-based automotive coating production line in Shanghai in 2008, all new domestic automotive coatings production lines have been designed with water-based coatings, and water-based coatings have become the mainstream of automotive coatings. Automotive coatings mainly include primers, intermediate coats, and top coats, among which top coats are divided into natural paints and metallic glitter paints. The water-based process of automotive coatings is gradually carried out from bottom to top. As early as the 1960s, developed countries such as Europe and the United States have taken the lead in using water-based electrophoretic primers. At present, more than 90% of the primers have adopted water-based coatings, and 88% of automobile intermediate coatings have also adopted water-based technology. The application exceeds 65%.
Railway paint
At present, more than 13,000 painted vehicles have been successfully used in the field of railway freight cars in my country. The products have been verified for more than 5 years and can fully meet the quality standards of solvent-based products; the development of a water-based coating system for railway locomotives and passenger cars, and the start of online testing after coating . The localization and water-based process of coatings in the fields of motor cars, high-speed rail and rail transit have also entered the work plan of the General Railway Corporation.
Heavy anti-corrosion coating
The annual economic loss caused by metal corrosion in my country accounts for about 4% of the gross national product. Such an astonishing loss stimulates the development of anti-corrosion coatings. The development of environmentally friendly industrial heavy anti-corrosion coatings is a high-tech project that many developed countries coating experts are actively exploring, especially in China. An emerging field. In some typical heavy-duty anti-corrosion coating markets, such as infrastructure, oil and gas, electricity, tanks, marine and chemical industries, the use of water-based coatings is increasing. There are water-based alkyd systems, water-based epoxy systems (epoxy mica intermediate coating and epoxy zinc-rich primer), water-based inorganic zinc-rich systems, water-based epoxy ester systems, etc., used in the field of heavy anti-corrosion.
The use of water-based paint can reduce costs, reduce safety accidents, and is extremely beneficial to the environment and worker health. With regard to the water-based quality issues that people are concerned about, with the successful development of the third-generation two-component water-based paints, it no longer becomes an obstacle to the development of water-based paints.
The application of water-based paint in the field of heavy-duty anticorrosion paint is on the rise, such as infrastructure, oil and gas and power industries, as well as industrial tanks, ships, and chemical industries. The best representative of water-based paint in the field of heavy anti-corrosion is no better than water-based inorganic zinc-rich primer.
Container coating
At present, the world’s annual output of containers exceeds 3.5 million TEUs, and the annual demand for coatings is about 400,000 tons, worth about 6 billion yuan. At present, most of the container coatings used worldwide are solvent-based. During the spray painting process of the container, a large amount of harmful gases are generated, which not only endangers the health of the paint workers, but also causes environmental pollution. With the increasingly stringent environmental protection regulations, the International Container Standardization Committee has put forward higher requirements for the environmental protection and sanitation of container coatings: for example, the coating must not contain heavy metals such as Cd, Pb, Cr, and Hg; use non-toxic pigments such as phosphate; high solids Points, low VOC, etc. Acrylic topcoats have begun to replace chlorinated rubber topcoats and special paints for the bottom of boxes. Water-based container coatings have already begun pilot applications in China.