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	Original Value	Comments

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

Mechanical Properties	Original Value	Comments
Hardness, Shore A	67	ASTM D2240-95
Tensile Strength	450 psi	ISO 37
Elongation at Break	70 %	ISO 37

Electrical Properties	Original Value	Comments
Volume Resistivity	7.70e+15 ohm-cm	ASTM D-257
Dielectric Constant	6.0	ASTM D-150
Dielectric Strength	571 V/mil	ASTM D-149

Thermal Properties	Original Value	Comments
CTE, linear	187 µm/m-°C
Thermal Conductivity	1.38 W/m-K
Maximum Service Temperature, Air	260 °C
Minimum Service Temperature, Air	-50.0 °C

Processing Properties	Original Value	Comments
Cure Time	1.00 - 5.00 min @Temperature 175 °C
	10.0 - 15.0 min @Temperature 150 °C
	15.0 - 20.0 min @Temperature 120 °C
	20.0 - 30.0 min @Temperature 100 °C
Shelf Life	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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