Advantages of polyurethane:
(1) wide hardness range.
(2) high strength.
(3) The adjustable range of performance is large. A number of physical and mechanical properties can be changed in a certain range through the selection of raw materials and adjustment of formula, so as to meet the different requirements of users on product performance.
(4) wear resistance. It has the good name of "wear-resistant rubber".
(5) oil resistance. The oil resistance of polyester polyurethane elastomer is no less than that of nitrile rubber and polysulfide rubber.
(6) excellent ozone resistance.
(7) Good shock absorption, radiation resistance and air permeability.