Also Known as Polysiloxane, This Silicone Rubber Offers Good Resistance to a Wide Variety of Chemicals. Softer Durometer Rubber Has Better Conformability; at 60A Durometer, This Silicone Rubber is Medium and Conformable. Smooth Finish, No Adhesive Backing. Includes 1 Red Sheet of Silicone Rubber. Outstanding Resistance to UV, Ozone, Oxidation and Weathering. Advantages of Silicone Rubber: 450F Use Temperature, Resists Oil, Acids, Animal Fats, Vinegar, Acetone, Amonium Hydroxide, and Natural Gas. Not Recommended for Gasoline, Fuel Oil, Kerosene, or Toluene.