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08-07-2015

Vamac VMX5000

Highly Heat Resistant Ethylene Acrylic Elastomer

At DKT/IRC 2015, DuPont Performance Polymers (DPP) introduced DuPont Vamac VMX5000, a new and commercially available family of ethylene acrylic elastomer (AEM) pre-compounds that extend the upper temperature limit for AEM applications by 15 to 20°C.

Vamac VMX5000 was developed to fulfil the latest auto industry needs for materials that can withstand more aggressive, engine environments (figure: DuPont)

Vamac VMX5000 was developed to fulfil the latest auto industry needs for materials that can withstand more aggressive, engine environments (figure: DuPont)

The new Vamac AEM pre-compounds, suitable for applications such as seals and gaskets, air management system applications and high-temperature coolant hose covers, are expected to offer a viable alternative to fluoroelastomers (FKM) at significantly lower cost and lower specific weight, in a temperature range between 160°C to 190°C – especially where standard acrylic, ethylene vinyl acetate or AEM elastomers are no longer considered.

Vamac VMX5000 is designed to meet new challenges to automotive hoses and seals imposed by new industry trends such as high-pressure turbo charging, exhaust gas recirculation and other technologies requiring resistance to higher temperatures and aggressive fluids. The Vamac pre-compounds also exhibit improved acid and base resistance compared to bisphenol cured FKM compounds, a feature of increasing importance for parts in contact with new oils containing aggressive additive packages or Blow-By.

Additionally, products in the Vamac VMX5000 Series incorporate a new filler system enabling much easier production of coloured non-black parts, leading to better optical color control combined with superior compression set resistance.

Company profile

DuPont de Nemours (Deutschland) GmbH

Hugenottenallee 173-175
DE 63263 Neu Isenburg
Tel.: 06102 18-0
Fax: 06102 18-4410

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