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Chemically Resistant adhesives

Lord Adhesives CoolTherm™ SC-6709/6730 Silicone encapsulant system
Categories: Polymer; Thermoset; Silicone; Silicone, RTV, Encapsulation Grade

Material Notes: LORD CoolTherm™ SC-6709/6730 silicone encapsulant is a two-component, solvent-free RTV silicone system. CoolTherm SC-6709/6730 encapsulant system is an ideal potting compound for any application where rapid heat transfer, high temperature service and a flexible system are required. CoolTherm SC-6730 hardener is blue-green in color and assures thorough mixing by visual examination.

Features: maintains low viscosity for complete and void-free encapsulation. provides thermal conductivity for applications where superior heat dissipation are required. minimizes the possibility of cracking during severe temperature cycling. can be used on parts and devices that experience operating temperatures from -68°C to +205°C.

All information provided by Lord.

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Physical PropertiesMetricEnglishComments
Specific Gravity 1.44 g/cc1.44 g/ccSC-6730 Hardener
 1.80 g/cc1.80 g/ccSC-6709 Resin
Water Absorption 0.080 %
@Temperature 25.0 °C,
Time 864000 sec
0.080 %
@Temperature 77.0 °F,
Time 240 hour
cured
Viscosity  5000 cP
@Temperature 25.0 °C
5000 cP
@Temperature 77.0 °F
SC-6730 Hardener
 32000 cP
@Temperature 25.0 °C
32000 cP
@Temperature 77.0 °F
SC-6709 Resin
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore A 6060cured
Tensile Strength 2.14 MPa
@Temperature 25.0 °C
310 psi
@Temperature 77.0 °F
Elongation at Break 115 %115 %cured
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity 1.00e+15 ohm-cm1.00e+15 ohm-cm
Dielectric Constant 5.1
@Temperature 25.0 °C
5.1
@Temperature 77.0 °F
cured
Dielectric Strength 21.7 kV/mm550 kV/incured
Dissipation Factor 0.020
@Temperature 25.0 °C
0.020
@Temperature 77.0 °F
cured
 
Thermal PropertiesMetricEnglishComments
CTE, linear 50.0 µm/m-°C27.8 µin/in-°Fcured
Thermal Conductivity 1.00 W/m-K6.94 BTU-in/hr-ft²-°Fcured
Maximum Service Temperature, Air 205 °C401 °F
Minimum Service Temperature, Air -68.0 °C-90.4 °F
 
Processing PropertiesMetricEnglishComments
Cure Time 480 - 720 min
@Temperature 25.0 °C
8.00 - 12.0 hour
@Temperature 77.0 °F
Working Life 30.0 - 60.0 min
@Temperature 25.0 °C
30.0 - 60.0 min
@Temperature 77.0 °F
Mixed
Shelf Life 6.00 Month
@Temperature 25.0 °C
6.00 Month
@Temperature 77.0 °F
each component, from date of manufacture when stored in original, unopened container
 
Descriptive Properties
AppearanceBlue-green liquidSC-6730 Hardener
 White LiquidSC-6709 Resin

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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Chemically Resistant adhesives

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