The polyether main chain endows it with good flexibility, while the amino group provides reactivity. The terminal amino group is prone to react with epoxy groups, isocyanate groups, etc., allowing the material to maintain high elasticity and impact resistance even after curing. It is an efficient curing agent for epoxy resin.

Widely used in wind turbine blades, composite materials (such as lightweight automotive components), polyurea coatings, high-performance coatings (for ships and aviation), fuel additives, adhesives and sealants, and elastomers.