The base material for polimide fibers is composed of aromatic backbone units only. Despite the non melting aromatic, halogen free structure it is classified as non flammable with an LOI of 38 percent.

Due to its outstanding chemical and physical properties Polimide fibers are used for a variety of applications ranging from filter media for high temperature filtration, protective clothing, sealing materials for space craft to various high temperature applications such as heat insulation.