... rubber 3.ISO9001:2008,UL,FDA,SGS certificate GL-4161 Insulator Silicone Rubber Compound Commodity nameInsulator Silicone RubberItemGL-4161ColorWhite/RedDensity(g ... properties, mainly used for produce electrical rubber products such as insulator product, lightning arrester etc Insulator Silicone Rubber Compound(GL-4161)