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Dow Corning Structural Sealant Solutions Enable a Safer, More Sustainable Shanghai Metro

Shanghai, China – China’s rapid urbanization reflects a global megatrend that brings both  challenges and opportunities for the country’s sustainable growth, as indicated in its 12th  Five-Year Plan. A modern public transportation system helps the metropolis operate smoothly, energy-efficiently and safely. As city planners continually seek sustainable solutions to improve mass transportation and to accommodate record ridership, Dow Corning silicone structural sealants are helping make the Shanghai Metro’s platform screen doors more effective and energy-efficient.

The screen doors separate the metro platform from the cars to improve passenger safety and must be able to withstand pressure from wind, crowds, impacts, and earthquakes, which puts rigorous demands on the silicone sealant used on the glass and door frames. Shanghai Metro engineers selected Dow Corning structural glazing sealants because of its strength, durability, and stability at high and low temperature.

In addition to making Metro stations safer by separating the train and the platform, Dow Corning weather-proofing sealants reduce the amount of energy consumed by the environmental control system, including heat in the winter and air conditioning in the summer.

“I have witnessed the rapid development and the great strides being made within the vast Metro network in Shanghai,” said Doug Kempf, Dow Corning High Performance Building Solutions Greater China Commercial Manager. “Silicone-based materials have played a key role in the transportation infrastructure as well as construction projects around the city by lowering carbon emissions, reducing energy consumption, and improving durability of structures. They create living and working environments that are healthier and safer for everyone.”  

The positive results on screen doors on Shanghai Metro Line have resulted in them also being used in other cities across China, including Beijing, Guangzhou, Hangzhou, Nanjing, Suzhou, Shenyang, Chengdu and Tianjin.

Beyond its proven performance such as durability, safety and energy efficiency, silicone and silicon-based technology is regularly finding new ways to address societal challenges, including energy consumption reduction, water conservation, and renewable resources enhancement.

“Much of Dow Corning’s innovation portfolio is designed to address emerging megatrends by offering innovative solutions and technologies for some of society’s most pressing needs such as safety and security, energy efficiency, rising urbanization and climate change,” said Kempf. “Sustainability is an essential requirement for our future success, as it will help us meet the changing needs of our customers and markets.”

In China, Dow Corning’s products have been used in a number of high profile projects such as Shanghai Expo 2010 Theme Pavilion, China Pavilion, and Performing Arts Center. Dow Corning’s structural sealant solutions also have played a key role in a majority of the top-20 highest building in the world like Burj Khalifa Tower, Taipei 101, Petronus Twin Tower, and so on.

“China is essential to Dow Corning’s success. Our integrated silicone manufacturing site in Zhangjiagang, China’s largest facility of its kind, our Songjiang plant and Shanghai-based Dow Corning Business and Technology Center well positioned us in this market,” said Kempf.

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About Dow Corning

Dow Corning ( provides performance-enhancing solutions to serve the diverse needs of more than 25,000 customers worldwide. A global leader in silicones, silicon-based technology and innovation, Dow Corning offers more than 7,000 products and services via the company’s Dow Corning® and XIAMETER® brands. Dow Corning is equally owned by The Dow Chemical Company and Corning, Incorporated. More than half of Dow Corning’s annual sales are outside the United States.  Dow Corning’s global operations adhere to the American Chemistry Council’s Responsible Care® initiative, a stringent set of standards designed to advance the safe and secure management of chemical products and processes.

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