Kermel and Other Heterocyclic Flame-Resistant Fibres
topic
Kermel polyamide-imide fibre provides inherent flame resistance with limiting oxygen index above 32 percent, soft handle comparable to wool, and good thermal protective performance in outer shell fabrics of 180 to 220 grams per square metre, used extensively in European firefighting outer shells as an alternative to aramid systems with competitive TPP values, while other heterocyclic polymer fibres including PEEK and polyphenylene sulfide are used in specialty high-temperature applications.
Role
Provides an alternative outer shell fibre system offering competitive thermal protection with distinctive handle and comfort characteristics compared to stiffer aramid systems, with Kermel being particularly prevalent in French and continental European firefighting clothing specifications where its blend of thermal protection performance and textile comfort properties has established a strong market position alongside aramid-based systems.