Silicone Roll 5mm 6mm 8mm Rubber Sheet [Technical Paameter] Performance Parameter Test Standard Tensile Strength 6.0 M pa ASTM D412 Breait Strength 55 K n/m ASTM D1458 Elongation 200% ASTM D412 Hardness 50~70 Shore A ASTM 2240 Temperature Range -40~220 C En344 Density 1.2~1.35 g/cm3 ASTM D792 Thermal nductivity 0.6-0.9 w/m*k