Application of spraying polypropyl water-resistant coatings

China Paint Online News Information
Application in the Beijing-Shanghai High-speed Railway: thehas just completed the opening of the Beijing-Shanghai High-Speed Railway, with a total length of 1318km and a total investment of about 220.9 billion yuan. Beijing-Shanghai high-speed railway bridge waterproof materials are all sprayed polysaccharus waterproof paint, waterproof area of about 10 million, spray polysaccharus dosing in about 20,000t. Beijing-Shanghai high-speed railway bridge spray polysaccharide waterproof system consists of bridge surface base, bottom coating, spray polyurethane waterproof layer, fat family polyurethane paint (exposed site). The spraying equipment is mainly selected from GRACO's H-XP3 polypermean spraying equipment, which has a heating capacity of >75 degrees C and a maximum pressure of 3500psi (24.13MPa). Construction aids include: generators, air compressors, frozen oil and water separators, insulation construction vehicles and so on. The application of spray polypropyl waterproof coating in the Beijing-Shanghai high-speed railway has been widely concerned, which has played a positive role in promoting the vigorous development and application of spray polypropyl coating technology.Application in bridges:because polyonium elastomer technology can quickly film, good overall, no seams, simple construction, and concrete adhesion can reach more than 2.5MPa, and steel adhesion can reach more than 5MPa, and polysorb material film resistance is excellent, can effectively prevent the erosion of various corrosive gases, liquids, to protect the structure from corrosion damage; Polylycrysive materials in the hot and cold alternating conditions, the chemical and chemical performance is still stable, there is no significant reduction, therefore, in the construction process of the bridge has also been widely used. According to many years of experience in the use of high-quality polycelue products, the relevant people believe that the use of polyyu elastomer technology, using it to do anti-corrosion overall surface layer, its overall quality is good, high strength, corrosion resistance is significant, especially with other anti-corrosion materials, can extend the life of the bridge.
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