Rubber Sheet Extreme Temp Applications Resists Ozone Oxidation.Silicone Thickness 1/8 In. Width 12 In. Length 36 In. Black Smooth Finish Tape Backing Type Min Temp Rating (Deg. F) -60 Max Temp (F) +400 Degrees Durometer 50A Elongation 300 Percent Tensile Strength (PSI) 750 Standards ASTM D2000 GE