PVDF shows a higher tensile strength pressure resistance and dimensional stability than PTFE, but friction and insulation properties are lower. PVDF has a high me resistance and dimensional stability than PTFE, but friction chanical strength and toughness at lower. PVDF has high mechanical strength and toughness at lower. PVDF has a high mechanical strenth and toughness at lower temperature and its temperature ranges from -30℃. to 150℃