CHT AS1420-180 1-part, silicone adhesive sealant

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CHT AS1420-180 1-part, silicone adhesive sealant
Categories:	Polymer; Thermoset; Silicone
Material Notes:	Description: This is a heat cured, non-corrosive, neutral cure, 1-part, silicone adhesive sealant. It is one in a range of Addition cure products which are solvent free. It exhibits primerless adhesion to many substrates when cured at temperatures above 100°C. It cures to form a very tough resilient silicone elastomer. This product will not corrode copper or its alloys and is suitable for use with electronic components. Key Features Fast elevated temperature cure Excellent thermal conductivity Non corrosive Contains 180 micron glass spheres Application: Electronics, self gapping TIM Cured Product: after 60 minutes at 120°C Information provided by CHT Group
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Physical Properties	Metric	English	Comments

Density	2.06 g/cc	0.0744 lb/in³	BS ISO 2781
Brookfield Viscosity	43000 cP	43000 cP	Mixed
Linear Mold Shrinkage	0.020 cm/cm	0.020 in/in
Storage Temperature	<= 15.0 °C	<= 59.0 °F

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	67	67	ASTM D2240-95
Tensile Strength	3.10 MPa	450 psi	ISO 37
Elongation at Break	70 %	70 %	ISO 37

Electrical Properties	Metric	English	Comments
Volume Resistivity	7.70e+15 ohm-cm	7.70e+15 ohm-cm	ASTM D-257
Dielectric Constant	6.0	6.0	ASTM D-150
Dielectric Strength	22.5 kV/mm	571 kV/in	ASTM D-149

Thermal Properties	Metric	English	Comments
CTE, linear	187 µm/m-°C	104 µin/in-°F
Thermal Conductivity	1.38 W/m-K	9.58 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air	260 °C	500 °F
Minimum Service Temperature, Air	-50.0 °C	-58.0 °F

Processing Properties	Metric	English	Comments
Cure Time	1.00 - 5.00 min @Temperature 175 °C	0.0167 - 0.0833 hour @Temperature 347 °F
	10.0 - 15.0 min @Temperature 150 °C	0.167 - 0.250 hour @Temperature 302 °F
	15.0 - 20.0 min @Temperature 120 °C	0.250 - 0.333 hour @Temperature 248 °F
	20.0 - 30.0 min @Temperature 100 °C	0.333 - 0.500 hour @Temperature 212 °F
Shelf Life	6.00 Month	6.00 Month

Descriptive Properties
Color	Grey
Cure type	Addition Heat Cure
Rheology	Flowable
Self Bonding	Yes
Volume Coefficient of Thermal Expansion	562 ppm/°C

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PCHTSIL006 / 314489

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