SUPERIOR PROPERTIES: Temperature Range -80 to 450F, Tensile Strength 700 psi, Elongation 400%, 50 Shore A Durometer, Translucent (semi-clear) GREAT GASKET MATERIAL: Can Withstand 450F, Resists Oil, Acids, Acetone, and Most Chemicals FOOD GRADE: Made of FDA-Listed Materials for Use with Food and Beverage, 21 CFR 177.2600 / FDA Compliant MULTITUDE OF USES: Can Be Used In The Garage, at Home, Industrial Settings, and For a Wide Range of DIY Projects. Cuts Easily w Knife/Scissors. PROFESSIONAL QUALITY: This Silicone Rubber Offers Good Resistance to Ozone and Salt Water, Can Be Used Outdoors. Also Known as Polysiloxane, This Silicone Rubber Offers Good Resistance to a Wide Variety of Chemicals. Softer Durometer Rubber Has Better Conformability; at 50A Durometer This Silicone Rubber is Medium to Soft and Very Conformable. Smooth Finish, No Adhesive Backing. Includes 1 Sheet of Rubber 1/32 (.032) inch Thick, 12" x 9" (.8mm x 230mm x 305mm). . Made of FDA-Listed Materials for Use with Food and Beverage, 21 CFR 177.2600 / FDA Compliant, 3A 18-03 Class 1 (Sanitary Standard). Translucent (semi-transparent). 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.