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	Original Value	Comments

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

Mechanical Properties	Original Value	Comments
Hardness, Shore A	40
Tensile Strength	1.38 MPa
Elongation at Break	200 %
Tear Strength	20.0 pli

Thermal Properties	Original Value	Comments
Maximum Service Temperature, Air	204 °C
Minimum Service Temperature, Air	-55.0 °C

Processing Properties	Original Value	Comments
Tack-Free Time	2.00 hour	Catalyzed, Deep Section Catalyst
	4.00 hour	catalyzed, DBT Catalyst
Gel Time	45.0 min	catalyzed, DBT Catalyst
	70.0 min	catalyzed, Deep Section Catalyst

Descriptive Properties
Color	White
Hegman Grind	3

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