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	Original Value	Comments

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

Mechanical Properties	Original Value	Comments
Hardness, Shore A	35	ASTM D2240
Tensile Strength	400 psi	ASTM D412
Elongation at Break	150 %	ASTM D412
Tear Strength	25.0 pli	Die B; ASTM D624

Electrical Properties	Original Value	Comments
Volume Resistivity	1.00e+15 ohm-cm	ASTM D257
Dielectric Constant	2.7 @Frequency 1000 Hz	ASTM D150
Dielectric Strength	500 V/mil	ASTM D149
Dissipation Factor	0.0010 @Frequency 1000 Hz	ASTM D150

Thermal Properties	Original Value	Comments
CTE, linear	270 µm/m-°C
Thermal Conductivity	0.110 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air	204 °C
Minimum Service Temperature, Air	-55.0 °C
Shrinkage	0.20 %

Processing Properties	Original Value	Comments
Cure Time	1.00 hour @Temperature 95.0 °C	option
	2.00 hour @Temperature 50.0 °C	option
	24.0 hour @Temperature 25.0 °C	option
Pot Life	120 min	Part A, Part B
Shelf Life	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

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PITWIN9124 / 239634

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