... 2.High temperature resistance 3.good flexibility, good elasticity TC valve seal1.Materials: NBR, NR ,EPDM ,SBR ,SR ,CR ,Silicon, etc ... is welcomed as well.7. Apply for: Auto, motorcycle, machinery, water pumps, valves, etc.8. We promise the high quality but ... , SILICON RUBBER, NYLON, PU, CR, SBR, EP, IIR etc TC valve seal