CHT SilSo Cool 21005 Silicone

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CHT SilSo Cool 21005 Silicone
Categories:	Polymer; Thermoset; Silicone
Material Notes:	Description: This is a two part, thermally conductive, thixotropic material, which cures at room temperature or can be accelerated with heat. It is specifically formulated to give low hardness and resistance to slump and features low and high temperature mechanical and chemical stability. It remains flexible and has a natural low level tack, ideal for applications where a strong mechanical or chemical bond is not required. It has a controlled volatile content and an easy mix ratio by volume or weight. Key Features Thermally conductive Soft material to compensate for CTE mismatch Flame resistant Electrically insulating Application: TIM gap filler Cured Product: 24 hours at 23+/-2°C Information provided by CHT Group
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Physical Properties	Metric	English	Comments

Density	3.06 g/cc	0.111 lb/in³	B; BS ISO 2781
	3.10 g/cc	0.112 lb/in³	A; BS ISO 2781
Storage Temperature	<= 30.0 °C	<= 86.0 °F

Mechanical Properties	Metric	English	Comments
Hardness, Shore OO	67	67	ASTM D 2240-95
Elongation at Break	50 %	50 %	ISO 37

Electrical Properties	Metric	English	Comments
Volume Resistivity	1.40e+13 ohm-cm	1.40e+13 ohm-cm	ASTM D-257
Dielectric Constant	7.55	7.55	ASTM D-150
Dielectric Strength	7.60 kV/mm	193 kV/in	ASTM D-149
Dissipation Factor	0.0035	0.0035	ASTM D-150
Comparative Tracking Index	>= 600 V	>= 600 V	IEC 60112:2009-10

Thermal Properties	Metric	English	Comments
CTE, linear	18.0 µm/m-°C	10.0 µin/in-°F
Thermal Conductivity	0.368 W/m-K	2.55 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air	200 °C	392 °F
Minimum Service Temperature, Air	-50.0 °C	-58.0 °F

Processing Properties	Metric	English	Comments
Extrusion Rate	333 g/min	333 g/min	B
	360 g/min	360 g/min	A
Cure Time	30.0 min @Temperature 100 °C	0.500 hour @Temperature 212 °F
Shelf Life	12.0 Month	12.0 Month

Descriptive Properties
Appearance	Thixotropic paste
Color	Blue		A
	Blue		Cured Product
	White		B
Mix Ratio	1:1		By Weight
Volume Coefficient of Thermal Expansion	53 ppm/°C

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PCHTSIL069 / 314552

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