CHT AS1802-200 RTV, silicone adhesive sealant

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CHT AS1802-200 RTV, silicone adhesive sealant
Categories:	Polymer; Thermoset; Silicone; Silicone, RTV, Adhesive/Sealant Grade
Material Notes:	Description: This is a non-corrosive, neutral cure, 1-part, RTV (Room Temperature Vulcanizing) silicone adhesive sealant. It is one in a range of Acetone cure products which are solvent free. It exhibits excellent primerless adhesion to many substrates and cures rapidly at room temperature when in contact with atmospheric moisture to form a tough rubber. This product will not corrode copper or its alloys and is suitable for use with electronic components. Key Features Excellent thermal conductivity Non corrosive Fast skinning Contains 200 micron glass spheres Application: Applications include but are not limited to, automotive, thermal transfer and bonding in PCBs, self gapping TIM Cured Product: 7 days at 23+/-2°C and 65+/-5% humidity Information provided by CHT Group
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Physical Properties	Metric	English	Comments

Density	2.11 g/cc	0.0762 lb/in³	BS ISO 2781
Brookfield Viscosity	350000 cP	350000 cP	Mixed
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	67	67	ASTM D2240-95
Tensile Strength	3.90 MPa	566 psi	ISO 37
Elongation at Break	103 %	103 %	ISO 37
Shear Strength	0.292 MPa	42.4 psi	Lap Shear Stainless Steel; ASTM D1002
	0.353 MPa	51.2 psi	Lap Shear Copper; ASTM D1002
	0.701 MPa	102 psi	Lap Shear Aluminum; ASTM D1002

Electrical Properties	Metric	English	Comments
Volume Resistivity	1.00e+14 ohm-cm	1.00e+14 ohm-cm	ASTM D-257
Dielectric Constant	4.9	4.9	ASTM D-150
Dielectric Strength	20.0 kV/mm	508 kV/in	ASTM D-149
Dissipation Factor	0.00090	0.00090	ASTM D-150
Comparative Tracking Index	>= 600 V	>= 600 V

Thermal Properties	Metric	English	Comments
CTE, linear	164 µm/m-°C	91.1 µin/in-°F
Thermal Conductivity	2.30 W/m-K	16.0 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	4.00 min	0.0667 hour	Tack Free Time / Skin Formation
	480 min @Temperature 23.0 °C	8.00 hour @Temperature 73.4 °F	3mm Depth
Shelf Life	12.0 Month	12.0 Month

Descriptive Properties
Appearance	Grey paste
Color	Grey
Cure type	Acetone
Rheology	Self Level
Self Bonding	Yes
Volume Coefficient of Thermal Expansion	493 ppm/°C

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PCHTSIL029 / 314512

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