Momentive Performance Materials RTV627 Dark Gray General Purpose Potting/Encapsulating Compound

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Momentive Performance Materials RTV627 Dark Gray General Purpose Potting/Encapsulating Compound
Categories:	Polymer; Thermoset; Rubber or Thermoset Elastomer (TSE); Silicone; Silicone, RTV, Encapsulation Grade
Material Notes:	Two-part addition cure. Two-part addition cure RTV silicones can be cured very quickly with the use of high heat. Addition cure products have no cure by-products and can be used to unlimited depths. Typical uses: Power supply and flyback transformer encapsulation. Data provided by the manufacturer, GE Silicones. GE Silicones became a part of Momentive Performance Materials in 2006.
Key Words:	RTV Silicones; R.T.V. Silicones
Vendors:	No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
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Physical Properties	Original Value	Comments

Density	1.37 g/cc
Viscosity	1270 cP @Temperature 25.0 °C

Mechanical Properties	Original Value	Comments
Hardness, Shore A	62
Tensile Strength, Ultimate	3.24 MPa
Elongation at Break	60 %
Tear Strength	3.40 kN/m	Die B

Electrical Properties	Original Value	Comments
Electrical Resistivity	5.70e+14 ohm-cm
Dielectric Constant	2.97 @Frequency 1000 Hz
Dielectric Strength	20.1 kV/mm @Thickness 1.90 mm
Dissipation Factor	0.0060 @Frequency 1000 Hz

Thermal Properties	Original Value	Comments
CTE, linear	210 µm/m-°C @Temperature 20.0 °C
Thermal Conductivity	0.310 W/m-K
Maximum Service Temperature, Air	204 °C	Continuous useful temperature.
Minimum Service Temperature, Air	-60.0 °C	Continuous useful temperature.
Flammability, UL94	V-0

Processing Properties	Original Value	Comments
Processing Temperature	25.0 °C	Cure time 2 hours.
Pot Life	120 min @Temperature 25.0 °C

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