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Properties of Nomex

Aramids, according to the Polymer Science Learning Center of the University of Southern Mississippi, are a family of nylon fibers developed by DuPont, the creator of nylon fiber in 1935. Almost 30 years later, DuPont developed an aramid fiber that was strong and provided heat protection without the need of a flame-retardant chemical finish or coating. This fiber, Nomex, is a staple in personal protective equipment (PPE).

  1. Background

    • Nomex is a manufactured aramid fiber created by DuPont in 1961, according to the University of Wisconsin-Eau Claire. Nomex's purpose is to provide heat resistance for any product made from the fiber, including paper, cloth and mechanical parts.

    Properties

    • Properties of Nomex include high resistance to heat, flame, ultraviolet light and chemicals. The University of Wisconsin-Eau Claire says Nomex's heat-resistant properties prevent the fiber from melting or charring until temperatures surpass 370 degrees Celsius (698 F.).

    Uses

    • Nomex is used to make PPE clothing as well as components in equipment that are exposed to intense heat, such as electrical insulation materials that protect and extend the life of electrical equipment, says DuPont.

    Industries

    • According to DuPont, Nomex use exists in a variety of industries such as the automotive industry (radiator hoses and windshield wipers) and the aircraft industry (tail fins and helicopter blades). The United States Military, firefighters and auto racers use PPE clothing made from Nomex.

    Types

    • Nomex papers and pressboards are used as electrical insulation. Nomex AP, Nomex Limitedwear, Nomex, Nomex III, Nomex IIIA and Nomex on Demand are used to make flame-resistant uniforms for occupations in which fire is a known hazard.

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