Polyurea exterior paint: dark horses for future architectural exterior decoration

For a long time, China's architectural exterior decoration mainly consists of ceramic tile, mosaic, marble, curtain wall and clay brick. Coatings only account for 10%, and there is a big gap between the use of paints and over 80% of architectural decoration in developed countries. According to the National Chemical Building Materials Industry's Tenth Five-Year Plan and the Outline of the 2015 Development Plan, during the Tenth Five-year Plan, China's urban residential construction will continue to develop at a construction speed of about 500 million square meters per year. The major tasks for the development of China's paint industry The emphasis will be on architectural coatings, which will account for more than 60% of architectural coatings used in exterior wall decoration.

According to the analysis, 80% of the high-rise building exterior decoration in Europe and the United States and other developed countries refused to use the brick, and use paint decoration, the main reason is that the tile is a high energy consumption product, in the production process, a lot of land resources are wasted and consumed. A large amount of energy does not meet the development direction of environmental protection and energy conservation. The country generally restricts its use. In use, the single color of the tile is not conducive to the enhancement of the urban beautification function. What's more serious is that the adhesive of the tile and wall will be aged and damaged for a long time. Easily wounding people and other safety hazards, and increase the weight of the wall, not only seriously affect the appearance of the city, but also very difficult to repair. The use of glass curtain walls has problems of light pollution and high costs.

The proportion of exterior wall coatings for architectural exterior walls in China is so low that it is mainly determined by China’s national conditions. First of all, the quality of coatings in our country is on the low side. There is no high-performance coating on the market to meet the market requirements in China. There are aging phenomena such as loss of light, discoloration, peeling, peeling, and chalking in 2 to 3 years. Affecting the decorative effect of the exterior wall, it has long been formed that the paint is a kind of low-cost decoration that is not suitable for the consumption concept of high-grade decorative requirements of the exterior wall. Secondly, from the perspective of consumer psychology, China's external wall decoration pays attention to one-time investment. It generally requires the service life of exterior decorative materials for more than 10 years. The high-rise buildings require a design life of 15 to 20 years, plus China’s serious environmental pollution, external wall decoration materials. The durability and anti-fouling requirements are even higher. Due to the fact that foreign countries do not consider the characteristics of serious environmental pollution, the paint design does not consider the durability and anti-fouling properties of the paint, resulting in the current Chinese market, whether foreign brands or Domestic brands have not yet appeared outside wall paint brands that can play a leading role.

Polyurea exterior paints with the reputation of 'universal coatings' came into being. The excellent overall performance and cost performance of polyurea coatings make it an unparalleled competitive advantage in ultra-high buildings, iconic buildings, key projects, etc. Compared to the current popular fluorocarbon exterior wall coatings, polyurea exterior walls. The cost of paint is lower, and at the same time, it can completely solve the diarrhea that easily cracks fluorocarbon coatings. This is also the main growth point of the current polyurea exterior paint market. Many well-known buildings all over the world are painted with polyurea exterior paints, and some have been tested in the field for almost 20 years. They can still maintain the gloss and color just after coating, reflecting the polyurea coating for external coating. Assembled, lasting new performance and durable weatherability.

Among various coatings, polyaspartic acid ester resins used in the manufacture of polyurea coatings have particularly superior properties, weather resistance, heat resistance, low temperature resistance, chemical resistance, and uniqueness. Tackiness and low friction. However, due to the fact that polyaspartic acid resin was monopolized by Bayer and BASF’s foreign giants before 2010, the price was high and few domestic companies could afford it. In 2011, the domestic manufacturer Feiyang Chemical broke the monopoly, succeeded in developing and possessing the ability to produce polyaspartic acid on a large scale, which reduced the cost of polyurea coatings by as much as half.

In foreign countries, polyurea exterior paint has been used as the protective cover for the decorative metal decorative plates of the building. Its performance standards are listed as the spontaneous performance standards for the performance of the US aama2605 super performance coating and the test procedure. Polyurea coatings are known as 'universal coatings' in Europe and the United States. Compared with traditional coatings, polyurea coatings not only have excellent light and weather resistance, but also have excellent surface elasticity, impact resistance, buckling resistance and wear resistance.