They all have same feature what are inherently flame retardant, self-extinguishing, no melt, drip and extremely low flammability.
When a manufacturer is seeking a synthetic fiber that meets specific standards for heat and flame resistance, or one that demands extreme tensile strength, two materials are widely known for these characteristics - DuPont’s Nomex™ and Kevlar™. Each of these belong to the “class of aramid fibers” with the general characteristics which include a high melting point, a high strength to weight ratio and low elongation at break.
Dupont™ Nomex® is a meta-aramid fiber means it is highly resistant to temperature, chemical degradation and abrasion.
Dupont™ Kevlar® and lower cost alternatives are para-aramid fibers that display a high tensile strength and modulus behavior
Fire retardant thread are extensively in the production of protective clothing, filtration and cabling where flame or heat resistance are required. Hai Huei is manufacturer and supplier for spun Nomex™, Kevlar™, Aramid and FR viscose sewing thread – these based fire retardant thread are the most popular FR(fire retardant) choices. (You may also like: Flame Resistant Fabric & FR Knitting Fabric)