Para-Aramid and Meta-Aramid Outer Shell Fabrics
topic
Meta-aramid fibres including Nomex and Conex provide inherent flame resistance through char formation at 340 to 370 degrees Celsius without melting or dripping, limited oxygen index above 28 percent, and excellent thermal stability for outer shell fabrics at weights of 180 to 260 grams per square metre, while para-aramid fibres including Kevlar and Twaron contribute cut and tear resistance in blends with meta-aramid that improve outer shell mechanical durability without compromising flame resistance.
Role
Forms the dominant fibre system for structural firefighting outer shell fabrics from the combination of inherent non-melting flame resistance, proven durability in firefighting service, and the broad base of field experience and test data supporting compliance with EN 469 and NFPA 1971 requirements, with meta-aramid blended with para-aramid representing the most widely specified outer shell material globally for structural firefighting turnout clothing.