Polyurethane elastomer is a polar molecular material composed of many flexible segments and rigid segments. As the proportion of rigid segments increases and the density of polar groups increases, the original strength and hardness of the elastomer will increase accordingly.

Oil resistance, ozone resistance, aging resistance, radiation resistance, low temperature resistance, good sound permeability, strong adhesion, excellent biocompatibility and blood compatibility. These advantages are why polyurethane elastomers are widely used in military, aerospace, acoustics, biology and other fields.
Not resistant to strong polar solvents and strong acid and alkali media. At a certain temperature, alcohols, acids, and ketones will swell and degrade polyurethane elastomers, and solvents such as chloroform, methylene chloride, dimethylformamide, and trichloro-Zene will swell polyurethane elastomers at room temperature.
Large internal heat generation, general high temperature resistance. The normal operating temperature range is -40~120°C. If long-term action is required under high-frequency oscillation conditions or high-temperature conditions, corresponding modification measures must be taken in structural design or formula.