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

Category Polymer , Thermoset , Rubber or Thermoset Elastomer (TSE) , Silicone , Silicone, RTV, Encapsulation Grade
Manufacturer Momentive Performance Materials (Former GE Silicones)
Trade Name
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Momentive Performance Materials RTV627 Dark Gray General Purpose Potting/Encapsulating Compound.pdf
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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.
Physical Properties Metric English Comments
Density 1.37 g/cc
0.0495 lb/in³
Viscosity 1270 cP

@Temperature 25.0 °C
1270 cP

@Temperature 77.0 °F
Mechanical Properties Metric English Comments
Hardness, Shore A 62
62
Tensile Strength, Ultimate 3.24 MPa
470 psi
Elongation at Break 60 %
60 %
Tear Strength 3.40 kN/m
19.4 pli
Die B
Thermal Properties Metric English Comments
CTE, linear 210 µm/m-°C

@Temperature 20.0 °C
117 µin/in-°F

@Temperature 68.0 °F
Thermal Conductivity 0.310 W/m-K
2.15 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air 204 °C
399 °F
Continuous useful temperature.
Minimum Service Temperature, Air -60.0 °C
-76.0 °F
Continuous useful temperature.
Flammability, UL94 V-0
V-0
Electrical Properties Metric English Comments
Electrical Resistivity 5.70e+14 ohm-cm
5.70e+14 ohm-cm
Dielectric Constant 2.97

@Frequency 1000 Hz
2.97

@Frequency 1000 Hz
Dielectric Strength 20.1 kV/mm

@Thickness 1.90 mm
511 kV/in

@Thickness 0.0748 in
Dissipation Factor 0.0060

@Frequency 1000 Hz
0.0060

@Frequency 1000 Hz
Processing Properties Metric English Comments
Processing Temperature 25.0 °C
77.0 °F
Cure time 2 hours.
Pot Life 120 min

@Temperature 25.0 °C
120 min

@Temperature 77.0 °F
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