NEW DUPONT ACE DELIVERS COST-EFFECTIVE PERFORMANCE FOR AUTOMOTIVE HOSES & DUCTS

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NEW DUPONT ACE DELIVERS COST-EFFECTIVE PERFORMANCE FOR AUTOMOTIVE HOSES & DUCTS
07 September 2005 - DuPont Engineering Polymers

DuPont Packaging & Industrial Products introduces DuPont ACE, a new acrylic co-elastomer that cost-effectively fills the gap between high- and mid-range elastomers. Designed to meet the needs of the global automotive industry, DuPont ACE can cost effectively replace ECO, CPE, high VA content and in some cases ACM in intermediate fluid and temperature resistance applications, such as turbocharger hoses, cold side, Transmission Oil Cooler hoses, molded air ducts and fuel hose covers.

The intermediate temperature resistance makes DuPont ACE ideally suited for applications where operational performance is required in the range of -40 up to 140°C, and where resistance to oil and other automotive fluids is needed. For higher temperatures users should consider DuPont Vamac elastomers. The fluid resistance of DuPont ACE is good especially when aging at elevated temperatures, which makes it ideal for TOC hoses and cold side turbocharger hoses.

"In terms of performance and cost benefit to the user, DuPont ACE is an excellent elastomer offering higher performance than ECO at similar overall cost on a volume basis," said Jacob Sims, global marketing manager, DuPont ACE.

DuPont ACE can also be considered a responsible materials choice because it is halogen free and it requires no heavy metal stabilizers in the rubber compound. It can be mixed on conventional processing equipment and is usually cross-linked using standard diamine curatives. DuPont ACE is also peroxide curable and as such has compatibility for use in polyester reinforced hoses. It has excellent bin stability, which allows convenient use and storage of DuPont ACE compounds.

Because of its lower specific gravity, DuPont ACE can offer approximately 15 percent weight savings in final parts vs. ECO. It performs without the need to incorporate lead stabilizers, and still delivers good oil and fluid resistance. The ASTM heat resistance vs. oil resistance chart shows the relative position of the new DuPont ACE with respect to other synthetic elastomers.

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About: DuPont Engineering Polymers
The DuPont Engineering Polymers business manufactures and sells DuPont Crastin PBT and DuPont Rynite PET thermoplastic polyester resins, DuPont Delrin acetal resins, DuPont Hytrel thermoplastic polyester elastomers, DuPont ETPV engineering thermoplastic vulcanizates, DuPont Minlon mineral reinforced nylon resins, DuPont Thermx PCT polycyclohexylene dimethyl terephthalate, DuPont Tynex filaments, DuPont Vespel parts and shapes, DuPont Zenite LCP liquid crystal polymers and DuPont Zytel nylon resins.

These products serve global markets in the aerospace, appliance, automotive, consumer, electrical, electronic, industrial, sporting goods and many other diversified industries.

Founded in 1802 science company DuPont operates in more than 70 countries. It offers a wide range of products and services for markets including agriculture, nutrition, electronics, communications, safety and protection, home and construction, transportation and apparel.

DuPont Electronic & Communication Technologies is a leading supplier of electronic materials, fluoropolymers, fluorochemicals and imaging technologies.

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