Comparison of Silicone Rubber and Teflon as Extruded Insulation for Electrical Conductors,

Each of the materials has areas of relative superiority in other areas equivalent properties are demonstrated. Among more important points are 1 Service temperature ranges are equivalent. 2 Solderability of both is excellent. 3 Cost and specific gravity of Teflon are higher. 4 Installation characteristics and cold flow resistance of silicone are better. 5 Teflon is outstanding electrically however silicone has areas of superiority. 6 In general chemical resistance Teflon ranks higher, but in ozone and radiation resistance silicone is superior. The design engineer must decide which areas are most significant in each application.