Silane terminated polyether polymers are referred to as STP resins. Its main chain is macromolecule polyether, and end group is siloxane can be hydrolyzed. It has the structural advantages of polyurethane sealant and silicone sealant. It shows excellent weatherability, durability, cohesiveness, paintability, environmental friendliness, low staining and excellent comprehensive performance. It is widely used in industry and construction.