CHT SE2003 Silicone elastomer

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CHT SE2003 Silicone elastomer
Categories:	Polymer; Thermoset; Silicone
Material Notes:	Description: This is a 2-component, silicone elastomer specifically designed for electronic potting and encapsulation applications. It offers good protection against chemicals, environmental contamination, mechanical shock, vibration and impact damage. It can be applied in areas where low flammability is a prerequisite. The cured elastomer can be repaired. The component parts have relatively low viscosities and are easily mixed either by hand or machine. Key Features Room temperature cure Non-corrosive Excellent thermal conductivity Resistant to reversion Cured product: After 7 days at 23°C +/- 2°C and 50% +/- 5% humidity Information provided by CHT Group
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Physical Properties	Original Value	Comments

Density	2.30 g/cc
Brookfield Viscosity	30000 cP	B
	35000 cP	Mixed
	40000 cP	A
Linear Mold Shrinkage	0.0010 cm/cm	BS ISO 2781
Storage Temperature	<= 40.0 °C

Mechanical Properties	Original Value	Comments
Hardness, Shore A	80	ASTM D2240-95
Tensile Strength	479 psi	ISO 37
Elongation at Break	40 %	ISO 37
Tensile Modulus	2450 psi	Young's
Tear Strength	28.5 pli	BS ISO 34-1

Electrical Properties	Original Value	Comments
Volume Resistivity	3.00e+14 ohm-cm	ASTM D-257
Surface Resistance	1.76e+15 ohm	ASTM D-257
Dielectric Constant	6.0 @Frequency 1000 Hz	ASTM D-150
Dielectric Strength	572 V/mil	ASTM D-149

Thermal Properties	Original Value	Comments
CTE, linear	155 µm/m-°C
Thermal Conductivity	1.27 W/m-K
Maximum Service Temperature, Air	250 °C
Minimum Service Temperature, Air	-50.0 °C

Processing Properties	Original Value	Comments
Cure Time	24.0 hour @Temperature 25.0 °C
	30.0 min @Temperature 100 °C
Pot Life	60.0 min
Shelf Life	9.00 Month

Descriptive Properties
Appearance	Addition
Color	Brick red	Cured Product
	Red	B
	White	A
Mix Ratio	1:1	By Weight
Rheology	Viscous liquid
Self Bonding	No
Volume Coefficient of Thermal Expansion	465 ppm/°C

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PCHTSIL059 / 314542

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