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ACC QSil 940 QSI Quantum Silicones 40 Durometer Condensation Cure for Potting

Category Polymer , Thermoset , Silicone
Manufacturer Amber Chemical Company
Trade Name
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF ACC QSil 940 QSI Quantum Silicones 40 Durometer Condensation Cure for Potting.pdf
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Material Notes:
QSil 940 is a special purpose, two-component condensation cure siloxane elastomer that exhibits excellent release properties unless a primer is used which results in excellent adhesion. The material can also be used for applications that have wide temperature range requirements. The two applicable catalysts are 0.5% DBT by weight and 10% Deep Section Catalyst by weight which gives a work life of approximately 45 minutes and a tack free time of 2 hours. The 0.5% catalyst level can be increased or decreased to obtain desired cure speed. Cure speed can be accelerated by adding DBT catalyst in increments of 0.1%.Key Features: Excellent release properties unless a primer is used Variable cure speedPart of the Amber Chemical Group. Data provided by manufacturer.
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
1.47 g/cc
1.47 g/cc
uncatalyzed, Deep Section Catalyst
Viscosity 650 cP
650 cP
uncatalyzed, Deep Section Catalyst
12000 cP
12000 cP
Storage Temperature <= 4.00 °C
<= 39.2 °F
6 months
<= 27.0 °C
<= 80.6 °F
3 months
Mechanical Properties Metric English Comments
Hardness, Shore A 40
40
Tensile Strength, Yield 1.30 MPa
189 psi
Elongation at Break 170 %
170 %
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 -115 °C
-175 °F
Processing Properties Metric English Comments
Cure Time 120 min
2.00 hour
Tack free time, catalyzed with Deep Section Catalyst or 100: 0.5 for DBT Catalyst
Gel Time 45.0 min
45.0 min
catalyzed with Deep Section Catalyst or 100: 0.5 for DBT Catalyst
Descriptive Properties Value Comments
Color Beige
uncatalyzed, Deep Section Catalyst
Clear/light yellow
uncatalyzed, DBT Catalyst
White
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