Wacker Powersil® 351 MH Silicone Rubber

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Wacker Powersil® 351 MH Silicone Rubber
Categories:	Polymer; Thermoset; Silicone; Silicone Rubber
Material Notes:	POWERSIL® 351 MH is a peroxide curing silicone elastomer with excellent electrical and mechanical properties especially suitable for outdoor applications in the T&D-sector. Special features: ready to use, one component system excellent elongation at break, high tear strength very good dielectrical properties good tracking resistance very good arc resistance Application: POWERSIL® 351 MH is especially designed for T<(>&<)>D applications. Because of its excellent mechanical properties POWERSIL® 351 MH is prone for use in “cable accessories” applications. Information provided by Wacker Chemie AG.
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Physical Properties	Metric	English	Comments

Density	1.10 g/cc	0.0397 lb/in³	DIN 51757

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	38	38	ISO 868
Tensile Strength at Break	9.00 MPa	1310 psi	ISO 37
Elongation at Break	800 %	800 %	ISO 37
Tear Strength	30.0 kN/m	171 pli	ASTM 624 B

Electrical Properties	Metric	English	Comments
Volume Resistivity	1.00e+15 ohm-cm	1.00e+15 ohm-cm	IEC 60093
Dielectric Constant	2.8 @Frequency 50 Hz	2.8 @Frequency 50 Hz	IEC 60250
Dielectric Strength	23.0 kV/mm @Thickness 1.00 mm	584 kV/in @Thickness 0.0394 in	IEC 60243
Dissipation Factor	0.00020 @Frequency 50 Hz	0.00020 @Frequency 50 Hz	IEC 60250
Arc Resistance	>= 240 sec	>= 240 sec	IEC 61621

Descriptive Properties
Color	gray
Track Resistance	1A 3.5		IEC 60587

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PWACK9362 / 204891

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