Nomex® fiber is a member of the aramid family of fibers, and is similar in appearance to nylon. Fabrics woven of Nomex® fibers are used in applications requiring good textile properties, good dimensional stability and excellent heat resistance. They are used in coated industrial fabrics, aerospace fabrics, electrical insulation, hot-gas filter bags, protective clothing, and high temperature hoses.
Fabrics woven of Nomex® fiber have a low level of flammability and do not melt or flow at high temperatures. Above 700°F (370°C), they will degrade rapidly to a friable char. At the point at which woven nylon fabrics melt (489°F, 254°C), fabrics woven of Nomex® fiber retain about 60% of their original strength. The flammability characteristics of fabrics woven of Nomex® fibers do not change with laundering.
Fabrics woven of Nomex® fiber have good resistance to many chemicals and are highly resistant to most hydrocarbons and many other organic solvents. Their acid resistance is superior to woven nylon fabrics. Fabrics woven of Nomex® fibers exhibit good resistance to alkalis at room temperature, but degrade at high temperatures.
Compared to woven nylon fabrics, fabrics woven of Nomex® fiber exhibit a higher resistance to beta and gamma radiation, to X-rays, and to water or steam at high temperatures. Therefore, fabrics woven of Nomex® fibers are excellent candidates for protective industrial apparel, aerospace fabrics, and substrates requiring radiation resistance.
Nomex® multifilament fiber can be package dyed in many colors.