CHT Group QSil 550SB QSI Quantum Silicones Self-Priming Silicone Potting Material

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CHT Group QSil 550SB QSI Quantum Silicones Self-Priming Silicone Potting Material
Categories:	Polymer; Thermoset; Silicone
Material Notes:	QSil 550SB is a 100% silicone solids elastomer designed for electronic potting applications. The two-component system offers a hard, thermally conductive, low modulus material that is readily repairable. Key Features: 100% solids - no solvents Long pot life Good elongation Low modulus Primerless adhesion Heat cure required Part of the Amber Chemical Group. Data provided by manufacturer. Formerly Amber Chemical Co (ACC Silicones), aquired by CHT in 2017
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Physical Properties	Original Value	Comments

Specific Gravity	1.41 g/cc	"B" component
	1.41 g/cc	"A" component
Viscosity	4000 cP	"B" component
	4000 cP	"A" component
Storage Temperature	<= 38.0 °C	12 months

Mechanical Properties	Original Value	Comments
Hardness, Shore A	55	cured 20 mins @ 150°C
Tensile Strength	3.45 MPa	cured 20 mins @ 150°C
Elongation at Break	120 %	cured 20 mins @ 150°C
100% Modulus	0.300 ksi @Strain 100 %	cured 20 mins @ 150°C
Tear Strength	20.0 pli	cured 20 mins @ 150°C

Electrical Properties	Original Value	Comments
Volume Resistivity	1.47e+15 ohm-cm
Dielectric Constant	3.1 @Frequency 1000 Hz
Dissipation Factor	0.0030

Thermal Properties	Original Value	Comments
Thermal Conductivity	0.370 W/m-K
Flammability, UL94	V-1 @Thickness 1.50 mm
	V-0 @Thickness 3.00 mm

Processing Properties	Original Value	Comments
Cure Time	15.0 min @Temperature 150 °C
	30.0 min @Temperature 125 °C
	45.0 min @Temperature 100 °C
Pot Life	>= 480 min

Descriptive Properties
Color	Beige	"A" component
	Black	"B" component

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PACC032 / 22159

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