CHT Group QSil 553LV Addition Cure Potting Material

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CHT Group QSil 553LV Addition Cure Potting Material
Categories:	Polymer; Thermoset; Silicone
Material Notes:	Product Description: QSil 553LV is a 100% silicone solids elastomer, designed for electronic potting applications. The two-component system offers a flame retardant, thermally conductive, low modulus material that is readily repairable. Key Features: 100% solids - no solvents Long pot life Low modulus Good elongation Material is UL listed (effective 3/1/13) Formerly Amber Chemical Co (ACC Silicones), aquired by CHT in 2017
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Physical Properties	Original Value	Comments

Specific Gravity	1.60 g/cc	Uncatalyzed, QSil 553LV A
	1.60 g/cc	Uncatalyzed, QSil 553LV C
Viscosity	4000 cP	Uncatalyzed, QSil 553LV A
	4000 cP	Uncatalyzed, QSil 553LV C

Mechanical Properties	Original Value	Comments
Hardness, Shore A	45	Cure 15 minutes at 150°C
Tensile Strength	250 psi	Cure 15 minutes at 150°C
Elongation at Break	240 %	Cure 15 minutes at 150°C
100% Modulus	0.180 ksi @Strain 100 %	Cured 15 minutes at 150°C
Tear Strength	45.0 pli	Cure 15 minutes at 150°C

Electrical Properties	Original Value	Comments
Volume Resistivity	4.02e+14 ohm-cm
Dielectric Constant	3.08 @Frequency 1000 Hz
Dissipation Factor	0.0090
Comparative Tracking Index	600 V

Thermal Properties	Original Value	Comments
Thermal Conductivity	0.650 W/m-K
Maximum Service Temperature, Air	204 °C
Minimum Service Temperature, Air	-55.0 °C
Flammability, UL94	V-0 @Thickness 3.00 mm

Processing Properties	Original Value	Comments
Cure Time	15.0 min @Temperature 150 °C	As Tested
Gel Time	100 min	Catalyzed

Descriptive Properties
Color	Beige	Uncatalyzed, QSil 553LV A
	Black	Uncatalyzed, QSil 553LV C

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PACC2095 / 199483

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