In 1937. German chemist Otto Bayer discovered the reaction between isocyanates and active hydrogen compounds, thus forming the foundation of polyurethane chemistry. In the 1940s, Germans developed polyurethane adhesives, and in the 1950s, German Adam synthesized polyurethane mix (MPUR) and polyurethane casting compound (CPUR). The development of polyurethane spanned over 60 years. By the 1960s, the United States had established a complete industrial system, from raw material production to the development and processing of polyurethane and its products, and achieved a leading position in the global polyurethane industry. Japan's polyurethane industry developed primarily through technology imports and joint ventures with foreign companies. Polyurethane production began in the early 1960s and gradually developed its own unique characteristics. Research and development of polyurethane in my country began after the Liberation Army. Starting in the early 1980s, the import of foreign raw materials and production technology significantly accelerated the development of polyurethane in my country.
Polyurethane waterproof coating is a new type of polymer waterproof coating developed in the 1960s in Europe, the United States, Japan, and other countries. It was developed to address many issues existing with rigid waterproofing and traditional flexible waterproofing. Polyurethane waterproof coating is one aspect of polyurethane coating applications and is a new type of high-end waterproof and anti-corrosion material. This non-toxic and easy-to-apply material is primarily used for waterproofing and anti-seepage in buildings, especially high-rise buildings, as well as for corrosion protection of floors and pipelines in chemical plants. It can even be used to create artificial turf and resilient flooring. It can also be applied to damp cement surfaces, bonding firmly to the cement to form a seamless coating, and its market prospects are promising.
Polyurethane coating is a high-grade, durable synthetic resin coating with excellent adhesion, abrasion resistance, flexibility, resilience, chemical and solvent resistance, and gloss, combining decorative and protective properties. Applications include: aircraft, ship, and vehicle coatings; surface coatings for wood, plastics, rubber, and leather; building coatings; and anti-corrosion coatings. The applications of polyurethane waterproof coatings in the field of building waterproofing include waterproofing of roofs, exterior walls, basements, etc.; waterproofing of indoor areas such as bathrooms, washrooms, and kitchens; waterproofing of water tanks, swimming pools, roof gardens, roof fish ponds, etc.; waterproofing and anti-corrosion of subways, underground buildings, underground pipelines, etc.; shrinkage joints, sealing and other waterproofing of concrete components; and other waterproofing of airtight warehouses, roads, bridges, etc.
