With the development of science and technology, in the future bridge construction, film-covered and crystalline-permeable inorganic waterproof coatings will be more and more applied. Waterproof technology has been applied in engineering.

For structures that are in wet parts for a long time, the application of elastic paint will increase, and its varieties will be combined with water-based acrylic paint or water-based acrylic-cement composite paint as the base coat and low PVC elastic latex paint as the top coat. main.

At present, people's living standards are constantly improving, and their awareness of environmental protection is also increasing. Environmental protection is a basic principle that human beings need to abide by in developing modern industries. Foreign waterproof paint is developing towards water emulsification and environmental protection, such as the development of high-performance water-emulsion polymer modified epoxy coal tar paint, water-emulsion polyurethane waterproof coating, etc. However, the market share of water-emulsion polymer-modified asphalt waterproof paint in my country is still very low, and the production technology of water-emulsion polyurethane waterproof paint is still immature and is still in the laboratory development stage. The more mature waterproof coatings in my country are polymer emulsion waterproof paint and polymer cement waterproof paint. With the introduction of foreign commodities and the demand of my country's waterproof paint market, cement polymer modified asphalt waterproof coatings and water-emulsion polyurethane waterproof coatings will receive further attention and development.

In recent years, foreign countries have devoted themselves to the development of high-performance waterproof paints with cement as a carrier and modified with active chemical catalytic substances. The most prominent advantage of this type of paint is that it does not emit substances that pollute the environment during production, construction and application, and meets environmental protection requirements.

In addition, the development of multi-functional waterproof coatings is also a must for coating manufacturers. It is reported that during the "Ninth Five-Year Plan" period, my country focused on the development of polyurethane waterproof coatings, polymer emulsion cement waterproof paints and rubber-modified epoxy coal tar paints with high solid content. For a period of time in the future, the development direction of new varieties of waterproof coatings in my country will be high-performance and multi-functional paints. Developed industrial countries have begun to develop in the direction of multi-functional waterproof coatings. For example, aluminum powder emulsion reflective paint and white polyacrylate reflective paint in the United States and France, the coating film not only has the function of waterproofing, but also can reflect sunlight and ultraviolet rays, reduce the temperature of the building structure and prolong the service life of the paint. In the future, heavy-duty anti-corrosion, heat-insulating, and reflective waterproof paints will be valued and welcomed.