1. Low specific gravity
2. Electrical insulation
3. Low thermal expansion coefficient
3. Low thermal expansion coefficient
4. High tensile and high tensile functions
5. Low elongation, high modulus, and high fracture strength
6. High chemical resistance, high stability, and resistance to creep
7. High temperature resistance, flame resistance, non melting, non combustion support, only carbonization
7. High temperature resistance, flame resistance, non melting, non combustion support, only carbonization