Anti-corrosion coatings to functional development market scale

With the continuous development of the social economy, the demand for anti-corrosion coatings is also growing. Therefore, the development of the anti-corrosion coating market has also become the direction of development of the paint industry.

The status quo of China's anti-corrosion coating development has shifted from single to multifunctional. In recent years, China's anti-corrosion coatings have developed rapidly, and the varieties have also developed in the direction of multi-function, and have developed many high-performance anti-corrosion, anti-static, high-elasticity, non-toxic and other multi-functional anti-corrosion coating. With the continuous development and application of high-performance anti-corrosion coatings, especially the development of railways, road traffic, electricity, oil and natural gas driven by “Western Development”, the demand for anti-corrosion coatings for urban infrastructure construction is increasing.

From traditional to environmentally friendly, currently China's anti-corrosion coatings are mainly based on solvent-based paints, and the proportion of high-grade products is not high. At the same time, China's anti-corrosion coating industry is also actively developing green products, carrying out green innovations, and improving the overall level of protection against paint products. It is imperative to replace traditional solvent-based anti-corrosion coatings with energy-saving, low-consumption, environmentally-friendly anti-corrosion coatings.

The special steering adaptive anti-corrosion coating is mainly based on rust prevention, oil resistance, and temperature resistance, and has strong specificity. With the development of paint anticorrosion technology, its application adaptability has attracted more attention. In addition, the anti-corrosion coating has convenient construction, good colorability, strong adaptability, is not limited by the structure and shape of the equipment, is easy to recoat and repair, has low cost, and can be used together with other anti-corrosion measures to obtain better anti-corrosion effect. .

At present, there are three gaps in painting. Currently, anti-corrosion coatings have made great progress in product quality, painting equipment, and coating technology. As shipyards and container industry are in line with international standards, large and medium shipyards and container plants in coastal areas The coating level and management level are relatively high. In addition, the epoxy powder coating operations of pipeline coating plants in the petrochemical industry are mainly based on imported equipment.

Due to the ever-changing coating environment, the standardization of coatings and paintings is managed by different industries, the lack of scientific and systematic, coupled with the differences in the qualifications of many anti-corrosion engineering companies, the overall level of China's anti-corrosion coating industry is still lagging behind. It is a large number of on-site paintings and the gap is even greater.

At present, a large number of domestic commonly used anti-corrosion coatings, ship coatings and container coatings in the 1990s, as a labor-intensive industry, the container industry from Japan to South Korea, and then transferred to China, China currently has more than 90% market share. Following Shenzhen Haihong, the container coating production bases of COSCO Kansai, Zhongtu Chemicals and KCC satisfied the demand of 2 million boxes per year. At the same time, the world's shipbuilding and ship-repairing industries have completed their transition to East Asia, and the corresponding production of marine coatings began to shift to East Asia, especially China. In 2004, Japan, South Korea, and China alone accounted for 84% of the global shipbuilding market share.

It is predicted that the demand for marine coatings market in China, which is dominated by marine coatings, will increase at a rate of 30% per year.

At present, the coatings used for offshore oil development are mainly protected by platforms and ancillary facilities. The annual amount of paint used is 3,500 tons. The coatings for ships are mainly high-performance and special coatings for ship repair. With the adjustment of institutions, the scope of popular elections has expanded. The general-purpose products began to infiltrate the ship coating market. The total capacity of the marine paint market was about 4,500 tons/year. With the rapid increase in the number of offshore fishing vessels in China in recent years, the number of fishing boats below 300 tons reached 350,000. Article, according to the amount of paint used each 60 kg, the total amount of 21,000 tons, plus a small wooden boat 30,000 tons, the total amount will reach 60,000 tons.

In recent years, heavy-duty coatings used in chemical industry have gradually brought pipeline paints closer to the epoxy primers and ethylene spray systems of developed countries. Natural gas pipelines and oil pipelines have different requirements. After gas treatment, the corrosiveness of gas is not strong, but the resistance reduction performance of internal walls is very high. At present, there is a big gap between domestic products and imported products. The paint on the outer wall of the pipeline is mainly epoxy asphalt or glass fiber-reinforced asphalt, which is inexpensive and can be produced by domestic manufacturers.

The outer wall of the tank can usually use epoxy primer for acrylic, chlorinated polyolefin and polyurethane topcoats. In recent years, the solar heat reflective paint is being promoted. In the premise of ensuring quality, the temperature can be reduced by 5 degrees Celsius to 8 degrees Celsius in summer.

Although the highway bridges of railways, highways, bridges and steel structures have many concrete structures, the mileage of steel bridges is no less than that of railway bridges. On average, the amount of paint used for each 1 kilometer bridge is 60 tons. If it is repaired in 10 years, it will consume more than 30,000 tons of paint each year. With the increase of environmental protection, the paints for railway bridges have gradually been made of red zinc primers and gradually developed into high-performance zinc-rich primers, especially high-modulus potassium silicate IC531-based aqueous zinc silicates and epoxy intermediate layers. Supports transitions with polyurethane finishes, or with other varieties based on high performance epoxy.

Paints for urban infrastructure Although the market has just started soon, the potential for development is enormous. There are several situations: China's urban construction is developing rapidly, and the long-term anti-corrosion protection is required for Huancheng Road, flyovers, viaducts, and river bridges; the demand for high-performance anti-corrosion coatings for city gas pipelines, gas storage tanks, and tap water pipelines, etc. It is very urgent; with the increasing awareness of environmental protection, large-scale environmental protection projects have been launched in large and medium-sized cities; the corresponding demand for high-performance anti-corrosion coatings for sewage treatment and sewage pipeline installations is increasing.

The market scale of China's anti-corrosion coatings is currently second only to architectural coatings. With the rapid development of China’s economy and the implementation and implementation of the government’s economic stimulus plan, China’s extraordinary growth has occurred in many fields such as construction, transportation, petrochemical, and hydropower, which will drive the demand for related auxiliary products. increase.