CHT Group QSil 40 QSI Quantum Silicones 40 Durometer Condensation Cure for Potting

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CHT Group QSil 40 QSI Quantum Silicones 40 Durometer Condensation Cure for Potting
Categories:	Polymer; Thermoset; Silicone
Material Notes:	QSil 40 is a general purpose two-part, room temperature, condensation cure siloxane elastomer. The two applicable catalysts are 0.5% DBT by weight and 10% Deep Section Catalyst by weight. Cure speed can be accelerated by adding DBT catalyst in increments of 0.1%. This will not alter the physical properties of the material. QSil 40 exhibits excellent release properties. However, strong adhesion can be achieved through the use of a primer. Key Features: Good adhesion with use of a primer Self-leveling Variable cure speed 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	Metric	English	Comments

Specific Gravity	1.04 g/cc	1.04 g/cc	Uncatalyzed, DBT Catalyst
	1.20 g/cc	1.20 g/cc	"A" component
	1.47 g/cc	1.47 g/cc	Uncatalyzed, Deep Section Catalyst
Viscosity	6500 cP	6500 cP	Uncatalyzed, Deep Section Catalyst
	11000 cP	11000 cP
Storage Temperature	4.00 °C	39.2 °F	12 months
	5.00 - 27.0 °C	41.0 - 80.6 °F	3 months

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	40	40
Tensile Strength	1.38 MPa	200 psi
Elongation at Break	200 %	200 %
Tear Strength	3.51 kN/m	20.0 pli

Thermal Properties	Metric	English	Comments
Maximum Service Temperature, Air	204 °C	399 °F
Minimum Service Temperature, Air	-55.0 °C	-67.0 °F

Processing Properties	Metric	English	Comments
Tack-Free Time	120 min	2.00 hour	Catalyzed, Deep Section Catalyst
	240 min	4.00 hour	catalyzed, DBT Catalyst
Gel Time	45.0 min	45.0 min	catalyzed, DBT Catalyst
	70.0 min	70.0 min	catalyzed, Deep Section Catalyst

Descriptive Properties
Color	White
Hegman Grind	3

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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