CHT SE2005 Silicone elastomer

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CHT SE2005 Silicone elastomer
Categories:	Polymer; Thermoset; Silicone
Material Notes:	Description: This is a 2-component, silicone elastomer system specially designed for electronic potting and encapsulation applications. It offers good protection against chemicals, environmental contamination, mechanical shock, vibration and impact damage. It can be employed in areas where low flammability is a prerequisite. The cured elastomer can be repaired. The component parts have relatively low viscosities and are readily mixed either by hand or machine Key Features Low viscosity Deep section cure Excellent dielectric properties Protects against shock and vibration Application: Protects against shock/vibration. Cured Product: 7 days at 23+/-2°C and 50+/-5% humidity Information provided by CHT Group
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Physical Properties	Metric	English	Comments

Density	1.14 g/cc	0.0412 lb/in³	B; BS ISO 2781
	1.20 g/cc	0.0434 lb/in³	Cured Product; BS ISO 2781
	1.21 g/cc	0.0437 lb/in³	A; BS ISO 2781
Brookfield Viscosity	300 cP	300 cP	B
	9000 cP	9000 cP	Mixed
	9000 cP	9000 cP	A
Linear Mold Shrinkage	0.0050 cm/cm	0.0050 in/in
Storage Temperature	<= 40.0 °C	<= 104 °F

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	40	40	ASTM D2240-95
Tensile Strength	1.08 MPa	157 psi	ISO 37
Elongation at Break	180 %	180 %	ISO 37
Tear Strength	2.10 kN/m	12.0 pli	BS ISO 34-1

Electrical Properties	Metric	English	Comments
Volume Resistivity	3.00e+14 ohm-cm	3.00e+14 ohm-cm	ASTM D-257
Dielectric Constant	3.4	3.4	ASTM D-150
Dielectric Strength	>= 18.0 kV/mm	>= 457 kV/in	ASTM D-149

Thermal Properties	Metric	English	Comments
Thermal Conductivity	0.240 W/m-K	1.67 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air	220 °C	428 °F
Minimum Service Temperature, Air	-50.0 °C	-58.0 °F

Processing Properties	Metric	English	Comments
Cure Time	1440 min	24.0 hour	De-mould Time / Full Cure
Pot Life	60.0 min	60.0 min
Shelf Life	9.00 Month	9.00 Month

Descriptive Properties
Appearance	Condensation
Color	White
Mix Ratio	100:1		By Weight
Rheology	Liquid
Volume Coefficient of Thermal Expansion	762 ppm/°C

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PCHTSIL060 / 314543

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