[2] Removing water drives the reaction toward polymerization through the formation of amide bonds from the acid and amine functions.

[3] It can either be extruded and granulated at this point or directly spun into fibers by extrusion through a spinneret (a small metal plate with fine holes) and cooling to form filaments.

[5] Nylon 66 is frequently used when high mechanical strength, rigidity, good stability under heat and/or chemical resistance are required.

Other applications include electro-insulating elements, pipes, profiles, various machine parts, zip ties, conveyor belts, hoses, polymer-framed weapons, and the outer layer of turnout blankets.

Phosphorus-based flame retardant systems are used in these fire-safe polymers and are based on aluminium diethyl phosphinate and synergists.