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Polyurethane shoulder pick Jingguang high iron waterproof
The Beijing-Guangzhou High-Speed Railway officially opened on December 26, marking a major milestone in China's transportation infrastructure. As the world's longest high-speed rail line, it connects nearly 30 cities, significantly reducing travel time between northern and southern China. Now, passengers can travel from Beijing to Guangzhou in just 7 hours and 59 minutes, making it much faster than traditional rail or road transport.
Since the start of construction on the Wuhan-Guangzhou section in June 2005, China has completed this ambitious project in just over seven and a half years, creating a vital "artery" that links the country’s north and south. Unlike conventional railways, high-speed lines use ballastless tracks, which require advanced waterproofing solutions to ensure durability and safety.
To meet these strict requirements, polyurethane-based materials have become essential. These products not only provide excellent anti-seepage and crack resistance but also withstand the intense pressure and repeated impacts from high-speed trains. Yantai Wanhua, a leading manufacturer in the polyurethane industry, has played a key role in supplying these critical materials.
In high-speed rail waterproofing projects, polyurea coatings are widely used. These coatings offer outstanding resistance to wear, impact, cracking, UV exposure, and extreme temperatures. They can be applied in a single layer to reach the desired thickness quickly, without being affected by weather conditions. Their ability to adhere to various surfaces—whether flat, sloped, or vertical—makes them ideal for ballastless track systems.
According to reports, many companies using Yantai Wanhua's polyurethane products have successfully secured contracts in high-speed rail projects. The polyurea coatings developed by Wanhua exhibit superior physical properties, including high tear strength and elongation. Beyond waterproofing, polyurethane is also extensively used in anti-corrosion coatings for EMUs (Electric Multiple Units), railway tracks, and station facilities.
With its strong position in the polyurethane market, Wanhua has been an important contributor to China's high-speed rail development, helping to build a safer, more efficient, and modern transportation network.