It is a higher level engineering plastic today. Its characteristics are as follows:
1. The long-term working temperature is 310 °C, and the instantaneous withstand temperature can reach 760 °C.
2. Can maintain stable characteristics in acid and alkali environment.
3. Products with higher strength in existing engineering plastics.
4. Its hardness is one-half of that of glass.
5. Its ash can be controlled below 2ppm.