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Chemically Resistant adhesives

Lord Adhesives Gelease™ MG-121 Thermally Conductive Silicone Gel Interface
Categories: Fluid; Lubricant; Silicone Base; Silicone, Filled Grease

Material Notes: GeleaseTM MG-121 exhibits the lowest thermal resistance of all thermal interface materials currently available from Lord. It is a one-component thermally conductive gel. This GeleaseTM formulation achieves thicknesses of 1-2 mils in order to minimize the thermal pathway and maximize heat flow. Gelease™ MG-121 provides extremely efficient heat transfer from Flip Chip devices (including microprocessors), PPGAs, BGAs, microBGAs, DSP chips, graphic accelerator chips, and other high wattage electronic components. The crosslinked structure of GeleaseTM MG-121 inhibits bleed, separation, and pump-out that are typically observed in many thermal interface materials.

All information provided by Lord.

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Physical PropertiesMetricEnglishComments
Specific Gravity 2.56 g/cc2.56 g/ccASTM D1505
Viscosity  60500 cP
@Temperature 25.0 °C
60500 cP
@Temperature 77.0 °F
20rpm
 75000 cP
@Temperature 25.0 °C
75000 cP
@Temperature 77.0 °F
10rpm
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity 8.00e+13 ohm-cm
@Temperature 25.0 °C
8.00e+13 ohm-cm
@Temperature 77.0 °F
ASTM D257
 
Thermal PropertiesMetricEnglishComments
CTE, linear 232 µm/m-°C129 µin/in-°FAlpha 2
Thermal Conductivity 2.30 W/m-K16.0 BTU-in/hr-ft²-°FASTM F433
Maximum Service Temperature, Air 200 °C392 °F
Glass Transition Temp, Tg -121 °C-186 °FASTM D3386
 
Processing PropertiesMetricEnglishComments
Cure Time  30.0 min
@Temperature 150 °C
0.500 hour
@Temperature 302 °F
 60.0 min
@Temperature 125 °C
1.00 hour
@Temperature 257 °F
 120 min
@Temperature 100 °C
2.00 hour
@Temperature 212 °F
Pot Life 480 min
@Temperature 25.0 °C
480 min
@Temperature 77.0 °F
Shelf Life  3.00 Month
@Temperature -5.00 °C
3.00 Month
@Temperature 23.0 °F
 6.00 Month
@Temperature -30.0 °C
6.00 Month
@Temperature -22.0 °F
 
Descriptive Properties
AppearanceGray
Thermal Impedance (ºC-in²/W)0.06-0.07In-House Custom Build Thermal Tester
Thixotropic Index3.6

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PLORD026 / 86034

Chemically Resistant adhesives

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