Building waterproofing has been from the waterproofing of simple building construction, that is, the roof, exterior wall, basement and other simple building waterproofing areas to highways, high-speed railways, bridges, subways, airports, terminals, tunnels, culverts, landfill disposal, etc. Field development. Building waterproofing materials are an important part of building materials. According to the National Bureau of Statistics, the total output value of the industry in 2012 was about 150 billion. The market share of building waterproof materials in engineering construction may account for 40%-50% of total sales revenue. The waterproof material bears the protective effect of the concrete. As the concrete is used more for engineering construction and infrastructure, the scope of use of the waterproof material is also expanded.

Building waterproofing is related to building safety, building energy conservation and environmental protection. Building leakage is a common cause of long-term construction in the country. The safety of the building comes from the main body of the building - reinforced concrete. The reinforced concrete itself has no waterproof function. In the long-term rainwater, the reinforced concrete will rust and crack, and the main function will be problematic. Therefore, building waterproofing is essential for the safety of the main body of the house. Building waterproofing is also about building energy efficiency. Building energy efficiency is the national policy of our country. Any insulation material will have a very large discount in performance under water and moisture. Building waterproofing is also related to environmental protection, including landfill, environmental treatment, including tailings treatment and other industries need to be waterproof.

The awareness of the importance of building waterproofing continues to increase. The state only requires two national products in the construction materials: 1. Cement (related to the safety of the main structure of the building), 2, waterproof building materials (protecting the reinforced concrete main structure from infringement). Building waterproofing is a hidden project, not exposed, and the importance of the past is not recognized. The investment of 4 trillion yuan has made the use of waterproof materials in highways, high-speed railways, airport terminals, landfills and other projects. People's awareness of the importance of waterproofing continues to increase.

The product structure is mainly waterproof membrane and supplemented by waterproof coating. Coil accounts for 70% of the industry's products, and coatings account for 30%. The main material is mainly coiled, and the coil also includes SBS and self-adhesive coils and polymer coils. These new products are the future development trend.