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WILMINGTON, Delaware, February 25, 2008

DuPont™ Zytel® HTN Can Make Rugged Parts for Potable Hot Water Use

Zytel® HTN PPA potable hot water fitting

NSF International has certified two grades of DuPont™ Zytel® HTN PPA for potable hot water applications. The certification gives manufacturers of water heaters and other equipment two new material options for engineering tough, strong, cost-effective components.

The resins, Zytel® HTN51G35HSLR BK420 and HTN51G45HSLR BK420, are now certified under NSF/ANSI Standard 61, Drinking Water System Components - Health Effects for hot water contact for fittings, pipe and various other parts such as valves or manifolds in contact with hot water. To receive this form of certification, material samples are tested at 82ºC (182ºF). The resins contain 35 or 45 percent glass fiber reinforcement.

Zytel® HTN delivers an outstanding balance of toughness, strength and stiffness with excellent retention of properties in long-term exposure to hot water,” said Kim Richmann. market development manager for water management applications at DuPont Engineering Polymers.

Thanks to its excellent molding properties, Zytel® HTN offers designers opportunities for integrating the functions of several metal parts into a single molded part. “This can result in significant cost savings with no sacrifice in part performance or quality,” said Richmann.

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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2/25/08

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Caption:
Water heater fitting made of DuPont™ Zytel® HTN underscores the material’s potential for hot water applications.

Caution:  This information is based upon technical data that DuPont believes to be reliable. It is subject to revision as additional knowledge and experience are gained. DuPont makes no guarantee of results and assumes no obligation or liability in connection with this information.

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