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DuPont extends AEM performance with Vamac® Ultra HT for 180°C turbo hose and air duct applications

At DKT 2012, DuPont Performance Polymers (DPP) will showcase its portfolio of high performance elastomers that help automotive design engineers increase powertrain and chassis efficiency through light-weighting, turbo charging and engine downsizing — leading to increased fuel economy and reduced emissions.
A highlight will be DuPont™ Vamac® Ultra HT, a new grade of ethylene acrylic elastomer (AEM) that extends the Vamac® Ultra family of high performance elastomers. Vamac® Ultra HT offers enhanced continuous heat resistance up to 180°C, with peaks to 200°C — significantly beyond the performance of standard AEM — making it suitable for demanding automotive applications such as turbo hoses and air ducts.

In addition, Vamac® Ultra HT delivers enhanced mechanical properties such as higher flex fatigue resistance, better low temperature flexibility and superior acid resistance in exhaust gas recirculation environments. Its higher viscosity also improves processing versus standard AEM grades, including better green strength and scorch resistance for extrusion processes.

DuPont™ Viton®, the most commonly specified fluoroelastomer, will strengthen the company’s line-up of advanced rubber products at DKT by offering fuel system sealing at temperatures from -40°C to +230°C, with improved resistance to gasoline, diesel, new biofuels and acid condensates from blow-by or exhaust gas recirculation. Examples of many Viton® applications in fuel seals, gaskets and hoses will be on display.


DuPont offers more than 100 materials and product families for the global automotive industry. Through its global application development network, DuPont Automotive is committed to collaborating with customers throughout the value chain to develop new products, materials, components and systems that help reduce dependence on fossil fuels and protect people and the environment. For more information, visit

DuPont Performance Polymers is committed to working with customers throughout the world to develop new products, components and systems that help reduce dependence on fossil fuels and protect people and the environment. With more than 40 manufacturing, development and research centers throughout the world, DuPont Performance Polymers uses the industry’s broadest portfolio of plastics, elastomers, renewably sourced polymers, filaments and high-performance parts and shapes to deliver cost-effective solutions to customers in aerospace, automotive, consumer, electrical, electronic, industrial, sporting goods and other diversified industries.

DuPont (NYSE: DD) has been bringing world-class science and engineering to the global marketplace in the form of innovative products, materials, and services since 1802. The company believes that by collaborating with customers, governments, NGOs, and thought leaders we can help find solutions to such global challenges as providing enough healthy food for people everywhere, decreasing dependence on fossil fuels, and protecting life and the environment. For additional information about DuPont and its commitment to inclusive innovation, please visit


The DuPont Oval Logo, DuPontÔ, The miracles of scienceÔ and all product names denoted with ® are trademarks or registered trademarks of E.I. Du Pont de Nemours and Company or its affiliates.


DuPont press contact
Rémi Daneyrole
Tel.: +41 (0)22 717 54 19
Fax: +41 (0)22 580 22 45

Rémi Daneyrole | DuPont
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