Momentive Performance Materials RTV656 Clear Extreme Low Temperature 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 RTV656 Clear Extreme Low Temperature Potting/Encapsulating Compound.pdf
Price	EMAIL US sales@lookpolymers.com
	Online Service lookpolymers 27660005

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: Aerospace potting, bonding, and sealing where extended low temp performance is needed.Data provided by the manufacturer, GE Silicones.GE Silicones became a part of Momentive Performance Materials in 2006.

Physical Properties	Metric	English	Comments
Density	1.02 g/cc	0.0368 lb/inÂ³
Viscosity	4000 cP @Temperature 25.0 Â°C	4000 cP @Temperature 77.0 Â°F

Mechanical Properties	Metric	English
Hardness, Shore A	44	44
Tensile Strength, Ultimate	6.37 MPa	924 psi
Elongation at Break	160 %	160 %

Thermal Properties	Metric	English	Comments
CTE, linear	270 Âµm/m-Â°C @Temperature 20.0 Â°C	150 Âµin/in-Â°F @Temperature 68.0 Â°F
Thermal Conductivity	0.190 W/m-K	1.32 BTU-in/hr-ftÂ²-Â°F
Maximum Service Temperature, Air	204 Â°C	399 Â°F	Continuous useful temperature.
Minimum Service Temperature, Air	-115 Â°C	-175 Â°F	Continuous useful temperature.

Optical Properties	Metric	English	Comments
Refractive Index	1.406	1.406
Transmission, Visible	90 %	90 %	clear; thickness not quantified

Electrical Properties	Metric	English
Electrical Resistivity	3.20e+15 ohm-cm	3.20e+15 ohm-cm
Dielectric Constant	2.89 @Frequency 1000 Hz	2.89 @Frequency 1000 Hz
Dielectric Strength	19.7 kV/mm @Thickness 1.91 mm	500 kV/in @Thickness 0.0750 in
Dissipation Factor	0.00040 @Frequency 1000 Hz	0.00040 @Frequency 1000 Hz

Processing Properties	Metric	English	Comments
Processing Temperature	25.0 Â°C	77.0 Â°F	Cure time 4 hours.
Pot Life	240 min @Temperature 25.0 Â°C	240 min @Temperature 77.0 Â°F

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