TPO based waterproofing membrane combines the performance advantages of EPDM and PVC, with the former's weather resistance, low temperature flexibility and the latter's weldability. This material is different from traditional plastic. It can show high elasticity of rubber at room temperature, and can be molded like plastic at high temperature，no flow, no foaming, no sliding, and no embrittlement. Therefore, this material has good processability and mechanical properties, and has high-strength welding
