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Engineering Plastics


Geneva, December 13, 2007

Metal detectors ‘see’ parts moulded from new DuPont™ Delrin® grade

New DuPont™ Delrin®400MTD acetal resin aims to open up more applications in food processing conveyors. Made with a proprietary metal filler, it can be detected by most metal-sensing equipment in the unlikely event of a part’s entry into the process stream.

The new resin shares attributes of Delrin® that have led to a wide range of applications in other kinds of conveyors. Thanks to its low wear and friction, conveyor parts made of Delrin® typically require little or no lubrication. Conveyors using Delrin® instead of metal for parts such as chains, belt links and other components can use less energy, make less noise and last longer.

Delrin® 400MTD delivers a combination of mechanical properties highly suitable for conveyor components. It maintains the typical acetal features of strength and stiffness, with minimal effects on impact and elongation. This resin complies with

U.S. Food and Drug Administration Regulation 21-CFR-177.2470 and may be used as articles or components of articles intended for contact on a repeated use basis, for all food types except those containing more than 15 percent alcohol, up to 250 ºF (120 °C) contact temperature.

The DuPont EngineeringPolymers business manufactures and sells Crastin® PBT and Rynite® PET thermoplastic polyester resins, Delrin®acetal resins, Hytrel® thermoplastic polyester elastomers, DuPont™ ETPV engineering thermoplastic vulcanizates, Minlon®mineral reinforced nylon resins, Thermx®PCT polycyclohexylene dimethyl terephthalate, Tynex® filaments, Vespel® parts and shapes, Zenite® LCP liquid crystal polymers, Zytel® nylon resins and Zytel® HTN high-performance polyamides. These products serve global markets in the aerospace, appliance, automotive, consumer, electrical, electronic, industrial, sporting goods and many other diversified industries.

DuPont is a science-based products and services company. Founded in 1802, DuPont puts science to work by creating sustainable solutions essential to a better, safer, healthier life for people everywhere. Operating in more than 70 countries, DuPont offers a wide range of innovative products and services for markets including agriculture and food; building and construction; communications; and transportation.

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