Wacker Powersil® INSULATOR FINISH Silicone Rubber

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Wacker Powersil® INSULATOR FINISH Silicone Rubber
Categories:	Polymer; Thermoset; Silicone; Silicone Rubber
Material Notes:	POWERSIL® INSULATOR FINISH is a self leveling, one-component silicone rubber, which cures at room temperature under the influence of moisture in the air. The elastomer has good mechanical and very good electrical properties. Special features: acetic acid-curing system self-leveling tracking and erosion resistant excellent primerless adhesion to many substrates very good resistance to weathering and air pollution Application: Repair material for silicone rubber sheds and housings of long rod and hollow core insulators, arresters and bushings. Information provided by Wacker Chemie AG.
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Physical Properties	Metric	English	Comments

Density	1.09 g/cc	0.0394 lb/in³	in water; ISO 2781
Viscosity	800000 cP	800000 cP	dynamic

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	20	20	ISO 868
Tensile Strength at Break	1.40 MPa	203 psi	ISO 37
Elongation at Break	500 %	500 %	ISO 37
Tear Strength	5.00 kN/m	28.5 pli	ASTM D624 B

Electrical Properties	Metric	English	Comments
Volume Resistivity	1.00e+15 ohm-cm	1.00e+15 ohm-cm	IEC 60093
Dielectric Constant	3.0 @Frequency 50 Hz	3.0 @Frequency 50 Hz	IEC 60250
Dielectric Strength	20.0 kV/mm	508 kV/in	IEC 60243

Processing Properties	Metric	English	Comments
Cure Time	600 - 1800 min @Treatment Temp. 23.0 °C	10.0 - 30.0 hour @Treatment Temp. 73.4 °F	per mm, 50% RH

Descriptive Properties
Color	light gray		cured
	light gray		uncured
Track Resistance	1A 3.5		IEC 60587

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PWACK9394 / 204923

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