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Ensinger PEI

Lord Adhesives Thermoset™ SC-400 Silicone Encapsulant
Categories: Polymer; Thermoset; Silicone; Silicone, RTV, Encapsulation Grade

Material Notes: LORD Thermoset SC-400 silicone encapsulant is a two-component system designed for encapsulation of delicate electronic components. Thermoset SC-400 encapsulant system cures to an extremely soft, gel-like consistency using either room temperature or heat cure. This encapsulant system contains a UV dye to aid inspection.

Features: exhibits low shrinkage and stress on components as it cures. provides excellent adhesion to most substrates without the use of a primer. composed of an addition-curing polymer that will not depolymerize when heated in confined spaces. provides excellent electrical insulation properties; provides thermal, mechanical and vibration damping. allows material to fluoresce or glow when exposed to a UV light source; helps ensure proper encapsulation of component.

All information provided by Lord.

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Physical PropertiesMetricEnglishComments
Specific Gravity 0.990 g/cc0.990 g/ccSC-400 Resin
 0.990 g/cc0.990 g/ccSC-400 Hardener
 0.990 g/cc0.990 g/ccMixed
Viscosity  120 cP
@Temperature 25.0 °C
120 cP
@Temperature 77.0 °F
SC-400 Hardener
 160 cP
@Temperature 25.0 °C
160 cP
@Temperature 77.0 °F
Mixed
 200 cP
@Temperature 25.0 °C
200 cP
@Temperature 77.0 °F
SC-400 Resin
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity 9.90e+14 ohm-cm
@Temperature 25.0 °C
9.90e+14 ohm-cm
@Temperature 77.0 °F
cured; ASTM D 257
Dielectric Constant 2.7
@Frequency 100000 Hz,
Temperature 25.0 °C
2.7
@Frequency 100000 Hz,
Temperature 77.0 °F
cured; ASTM D 150
Dissipation Factor <= 0.0050
@Frequency 100000 Hz,
Temperature 25.0 °C
<= 0.0050
@Frequency 100000 Hz,
Temperature 77.0 °F
cured; ASTM D 150
 
Thermal PropertiesMetricEnglishComments
CTE, linear 326 µm/m-°C
@Temperature 25.0 °C
181 µin/in-°F
@Temperature 77.0 °F
cured
Thermal Conductivity 0.200 W/m-K1.39 BTU-in/hr-ft²-°FASTM D 2214
Glass Transition Temp, Tg -110 °C-166 °Fcured
 
Processing PropertiesMetricEnglishComments
Working Life 15.0 min
@Temperature 25.0 °C
15.0 min
@Temperature 77.0 °F
Mixed
Gel Time 25.0 min
@Temperature 25.0 °C
25.0 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
 
Descriptive Properties
AppearanceClear LiquidSC-400 Resin
 Clear LiquidSC-400 Hardener
 Clear LiquidMixed
HardnessSoft Gel
Storage Modulus0.00275 MPa

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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