CHT Group QSil 550F Addition Cure Potting Material

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CHT Group QSil 550F Addition Cure Potting Material
Categories:	Polymer; Thermoset; Silicone
Material Notes:	Product Description: QSil 550F is a 100% silicone solids elastomer designed for electrical potting applications. The two-component system offers a hard, thermally conductive, low modulus material that is readily repairable. Key Features: 100% solids Fast gel time Good elongation Low modulus Formerly Amber Chemical Co (ACC Silicones), aquired by CHT in 2017
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Physical Properties	Original Value	Comments

Specific Gravity	1.39 g/cc	Uncatalyzed, QSil 255F A
	1.39 g/cc	Uncatalyzed, QSil 255F B
Viscosity	3500 cP	Uncatalyzed, QSil 255F A
	3500 cP	Uncatalyzed, QSil 255F B

Mechanical Properties	Original Value	Comments
Hardness, Shore A	60	Cure 7 minutes at 150°C
Tensile Strength	611 psi	Cure 7 minutes at 150°C
Elongation at Break	112 %	Cure 7 minutes at 150°C
Tear Strength	25.0 pli	Cure 7 minutes at 150°C

Electrical Properties	Original Value	Comments
Volume Resistivity	1.47e+15 ohm-cm
Dielectric Constant	3.12 @Frequency 1000 Hz
Dissipation Factor	0.0030

Thermal Properties	Original Value	Comments
Thermal Conductivity	0.370 W/m-K
Maximum Service Temperature, Air	204 °C	Cured 7 minutes @ 150°C
Minimum Service Temperature, Air	-55.0 °C	Cured 7 minutes @ 150°C
Flammability, UL94	V-0 @Thickness 3.00 mm

Processing Properties	Original Value	Comments
Cure Time	7.00 min @Temperature 150 °C	As Tested
Gel Time	7.00 min	Catalyzed

Descriptive Properties
Color	Beige/White	Uncatalyzed, QSil 255F A
	Black	Uncatalyzed, QSil 255F B

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PACC2092 / 199480

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