ITW Insulcast® RTVS 11 Silicone Potting/Encapsulation Compound

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ITW Insulcast® RTVS 11 Silicone Potting/Encapsulation Compound
Categories:	Polymer; Thermoset; Silicone; Silicone, RTV, Encapsulation Grade
Material Notes:	Insulcast® solutions are compounds designed for potting and encapsulating. RTVS 11 is a low viscosity, multi-purpose compound, designed for use as a potting, encapsulating, sealing and mold making material. Due to its excellent electrical properties, the RTVS 11 is used extensively is a high voltage potting compound, as well as an encapsulating compound for delicatecircuitry. The RTVS 11 can be used with various curing agents, thus varying pot life, cure time, mix ratios and cure conditions. Information provided by ITW Performance Polymers.
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Physical Properties	Metric	English	Comments

Specific Gravity	1.18 g/cc	1.18 g/cc
Viscosity	12000 cP	12000 cP	ASTM D1084

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	45	45	ASTM D2240
Tensile Strength	3.45 MPa	500 psi	ASTM D412
Elongation at Break	150 %	150 %	ASTM D412
Tear Strength	3.51 kN/m	20.0 pli	Die B; ASTM D624

Electrical Properties	Metric	English	Comments
Volume Resistivity	9.00e+14 ohm-cm	9.00e+14 ohm-cm	ASTM D257
Dielectric Constant	3.4 @Frequency 1000 Hz	3.4 @Frequency 1000 Hz	ASTM D150
Dielectric Strength	19.7 kV/mm	500 kV/in	ASTM D149
Dissipation Factor	0.020 @Frequency 1000 Hz	0.020 @Frequency 1000 Hz	ASTM D150

Thermal Properties	Metric	English	Comments
CTE, linear	250 µm/m-°C	139 µin/in-°F
Thermal Conductivity	0.0259 W/m-K	0.180 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air	204 °C	399 °F
Minimum Service Temperature, Air	-55.0 °C	-67.0 °F
Flammability, UL94	V-0	V-0
Shrinkage	0.20 - 0.50 %	0.20 - 0.50 %

Processing Properties	Metric	English	Comments
Cure Time	1440 min @Temperature 25.0 °C	24.0 hour @Temperature 77.0 °F	USING 0.3% CAT 2 (DBT). Faster tack-free surfaces achieved using varied catalysts.
Pot Life	15.0 - 120 min	15.0 - 120 min	varies with % of CAT-2
Shelf Life	6.00 Month	6.00 Month

Descriptive Properties
Color	white
Mix Ratio by weight	0.1 to 0.5%		CAT 2

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