CHT Group QSil 573 Addition Cure Potting Material

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CHT Group QSil 573 Addition Cure Potting Material
Categories:	Polymer; Thermoset; Silicone
Material Notes:	Product Description: QSil 573 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 Excellent thermal conductivity Formerly Amber Chemical Co (ACC Silicones), aquired by CHT in 2017
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Physical Properties	Metric	English	Comments

Specific Gravity	2.14 g/cc	2.14 g/cc	Uncatalyzed, QSil 573A
	2.18 g/cc	2.18 g/cc	Uncatalyzed, QSil 573B
Viscosity	5500 cP	5500 cP	Uncatalyzed, QSil 573A
	5500 cP	5500 cP	Uncatalyzed, QSil 573B

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	55	55	Cure 15 minutes at 150°C
Tensile Strength	1.10 MPa	160 psi	Cure 15 minutes at 150°C
Elongation at Break	40 %	40 %	Cure 15 minutes at 150°C

Electrical Properties	Metric	English	Comments
Volume Resistivity	5.05e+13 ohm-cm	5.05e+13 ohm-cm
Dielectric Constant	4.92 @Frequency 1000 Hz	4.92 @Frequency 1000 Hz
Dissipation Factor	0.0050	0.0050

Thermal Properties	Metric	English	Comments
Thermal Conductivity	0.900 W/m-K	6.25 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air	204 °C	399 °F
Minimum Service Temperature, Air	-55.0 °C	-67.0 °F
Flammability, UL94	V-1 @Thickness 1.50 mm	V-1 @Thickness 0.0591 in
	V-0 @Thickness 3.00 mm	V-0 @Thickness 0.118 in

Processing Properties	Metric	English	Comments
Cure Time	15.0 min @Temperature 150 °C	0.250 hour @Temperature 302 °F	As Tested
Gel Time	155 min	155 min	Catalyzed

Descriptive Properties
Color	Gray		Uncatalyzed, QSil 573B
	White		Uncatalyzed, QSil 573A

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PACC2104 / 199492

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