The silicon rubber is used for making composite housing of insulator and surge ... +/-360+/-3Tensile Strength (Mpa, ≥)4.85.2Elongation at Breakage (%,≥)250280Tension Set (%,≤)32Tear Strength (kN/m,≥ )1315Volume Resistivity (∩.cm,≥)1X10147X1014Dielectric Constant3~43 ... .5, Depth of ErosionResistance (class)≤2.5mm≤2.5mm Silicon Rubber