The abrasion resistance of polyamide fiber is the best among all textile fibers. Under the same conditions, its abrasion resistance is 10 times of cotton, 20 times of wool and 50 times of rayon. If 15% polyamide fiber is added to wool or cotton spinning, its abrasion resistance is 3 times higher than that of pure wool or cotton.

Polyamide fiber has good alkali resistance, but poor acid resistance. Under normal room temperature conditioning, it can withstand 7% hydrochloric acid, 20% sulfuric acid, 10% nitric acid, and 50% caustic soda immersion, and the result is not corroded. Therefore, polyamide fiber is suitable for anti-corrosion work clothes. In addition, it can be used as fishing nets, which are not afraid of seawater erosion. The service life of nylon fishing nets is 3 to 4 times longer than that of general fishing nets.