The products have excellent properties of high temperature resistance, insulation, flame retardant, radiation resistance, anti-bacteria, anti-UV and solvent resistance. It can be widely used in the area of high temperature dusting（Non-woven felt, filter bag）, special protection and composite material. The general indexof ASPI®polyimide fiber is as follows,

Fineness 1.1~6 dtex,

Density 1.41 g/cm3 ;

Breaking strength ＞4.0 cN/dtex;

Elongation at break 10~30%;

Continuous use temperature 260℃;

Decomposition temperature 560℃;

Limiting oxygen index(LOI) 38%;

good Acid resistance and good UV radiation resistance property.