1 excellent chemical resistance properties and room temperature will not be eroded by acid and alkali strong oxidant, halogen. 

2 high impact strength and abrasion resistance, and creep resistance and high mechanical strength and good toughness. 

3 good heat resistance, incombustibility, long-term working temperature:-40~150?, and has a high dielectric strength. 

4 has outstanding resistance to weathering, ozone, UV-resistant and nuclear radiation.