for Extrusion Silicone Rubber

1)Very good high low temperature resistance; 2)Corona and arc resistance.

                                 General Purpose Silicone Rubber for Extrusion

 

This product could be put into basic processing after adding vulcanizator Double 2, 4. And it may not need second vulcanization when technical conditions properly controlled.

The formed product has the following properties: very good high and low temperature resistance, corona and arc resistance, and electric insulation. It is suitable for different kinds of electric wire and  cable, jacket rubber tubes and parts for electrical insulator, heat-resistant seals, irregular shaped and foam strips.

DH-250 DH-260 DH-270 DH-280 For Line For Tube For Line For Tube For Line For Tube For Line For Tube Appearance milky-white, slightly transparent, no obvious extraneous matter Density g/cm3   1.18±0.05 1.20±0.05 1.22±0.05 1.25±0.05 Hardness Shore A Points   50±2 52±2 60±2 62±2 70±2 71±2 80±2 Tensile Strength mPa≥   8.0 8.0 7.5 7.5 7.0 7.0 7.0 7.0 Tensile Strength at Break % ≥   440 380 360 300 240 200 180 150 Tension Set at Break % ≤   14 12 14 12 14 12 10 10 Tear Strength kN/m ≥   20 22 20 20 Volume Resistivity Ω·cm, ≥   3.0×1014 Dielectric Strength kV/mm ≥   20

Physical and Mechanical Properties are based on first vulcanization data, Electrical Properties are drawn from second vulcanization data. First vulcanization Condition for test piece: 175×5min, Second vulcanization condition for test piece: 200×2h.Vulcanizator: 80% DMDBH,quantity added 0.65%

for Extrusion Silicone Rubber