... radiation resistance and high vacuum resistance.2.Good electrical insulation, mechanical properties, chemical corrosion resistance, ozone resistance, weather resistance ... , U-type Loop, Y-type Loop, rubber strip, oil seal, rubber tubing and various rubber, appliances, hardware and machinery, ... and high temperature resistancesilicone o ring food grade in mechanical parts HNBR FKM FPM VITON A VITON B GF ...