ITW Insulcast® RTVS 61M Silicone Potting/Encapsulation Compound

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ITW Insulcast® RTVS 61M Silicone Potting/Encapsulation Compound
Categories:	Polymer; Thermoset; Silicone; Silicone, RTV, Encapsulation Grade
Material Notes:	Insulcast® solutions are compounds designed for potting and encapsulating. RTVS 61M is a low viscosity, self-extinguishing transparent RTVS Silicone. RTVS 61M is used in situations where component identification and protection against shock and vibration is needed. Heat can be used to accelerate the cure. Information provided by ITW Performance Polymers.
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Physical Properties	Metric	English	Comments

Specific Gravity	1.00 g/cc	1.00 g/cc	Uncured. Part A
	1.00 g/cc	1.00 g/cc	Uncured. Part B
	1.02 g/cc	1.02 g/cc	Uncured. Mixed. Part A, Part B
Viscosity	4000 cP	4000 cP	Part A; ASTM D1084
	4500 cP	4500 cP	Mixed, Part A, Part B; ASTM D1084
	5000 cP	5000 cP	Part B; ASTM D1084

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	35	35	ASTM D2240
Tensile Strength	2.76 MPa	400 psi	ASTM D412
Elongation at Break	150 %	150 %	ASTM D412
Tear Strength	4.38 kN/m	25.0 pli	Die B; ASTM D624

Electrical Properties	Metric	English	Comments
Volume Resistivity	1.00e+15 ohm-cm	1.00e+15 ohm-cm	ASTM D257
Dielectric Constant	2.7 @Frequency 1000 Hz	2.7 @Frequency 1000 Hz	ASTM D150
Dielectric Strength	19.7 kV/mm	500 kV/in	ASTM D149
Dissipation Factor	0.0010 @Frequency 1000 Hz	0.0010 @Frequency 1000 Hz	ASTM D150

Thermal Properties	Metric	English	Comments
CTE, linear	270 µm/m-°C	150 µin/in-°F
Thermal Conductivity	0.0159 W/m-K	0.110 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air	204 °C	399 °F
Minimum Service Temperature, Air	-55.0 °C	-67.0 °F
Shrinkage	0.20 %	0.20 %

Processing Properties	Metric	English	Comments
Cure Time	60.0 min @Temperature 95.0 °C	1.00 hour @Temperature 203 °F	option
	120 min @Temperature 50.0 °C	2.00 hour @Temperature 122 °F	option
	1440 min @Temperature 25.0 °C	24.0 hour @Temperature 77.0 °F	option
Pot Life	120 min	120 min	Part A, Part B
Shelf Life	6.00 Month	6.00 Month	Part A, Part B

Descriptive Properties
Color	clear		part A, uncured
	clear		part B, uncured
Mix Ratio by weight	10:1		Part A: Part B

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

PITWIN9124 / 239634

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