Its working temperature is -45~125 degree,its shrink temperature is 70~125 degree,shrink ratio is 4:1,it can anti-UV,wear resistant.Its with high rate of shrinkage characteristics and wear characteristics,widely used in electronic equipment wire connection,automotive wiring harness,appliance wiring harness,wire and cable branch office,metal pipelines,wire and cable repair,submersible pump wiring need to seal the occasion.