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Ensinger PEI

Epoxy Technology EPO-TEK® T7109-18 Electrically Insulating Epoxy Paste
Categories: Polymer; Thermoset; Epoxy

Material Notes: Material Description: A flexible, electrically insulating epoxy paste designed for low stress and heat dissipation applications. Alternative to EPO-TEK® T7109-17.

Information Provided by Epoxy Technology

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Physical PropertiesMetricEnglishComments
Specific Gravity 1.07 g/cc1.07 g/ccPart B
 1.86 g/cc1.86 g/ccPart A
Particle Size <= 20 µm<= 20 µm
Viscosity 6500 - 10700 cP
@Temperature 23.0 °C
6500 - 10700 cP
@Temperature 73.4 °F
20 rpm
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore A 6969
Tensile Modulus 0.009873 GPa1.432 ksiStorage
Shear Strength 1.50 MPa218 psiLap
 >= 2.34 MPa>= 340 psiDie
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity >= 5.00e+9 ohm-cm>= 5.00e+9 ohm-cm
Dielectric Constant 5.63
@Frequency 1000 Hz
5.63
@Frequency 1000 Hz
Dissipation Factor 0.070
@Frequency 1000 Hz
0.070
@Frequency 1000 Hz
 
Thermal PropertiesMetricEnglishComments
CTE, linear 68.0 µm/m-°C37.8 µin/in-°FBelow Tg
 200 µm/m-°C111 µin/in-°FAbove Tg
Thermal Conductivity 0.200 W/m-K1.39 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air 125 °C257 °FContinuous
 225 °C437 °FIntermittent
Minimum Service Temperature, Air -55.0 °C-67.0 °FContinuous
 -55.0 °C-67.0 °FIntermittent
Glass Transition Temp, Tg >= 5.00 °C>= 41.0 °FDynamic Cure 20—200°C /ISO 25 Min; Ramp 10—200°C @ 20°C/Min
Decomposition Temperature 294 °C561 °FDegradation Temperature
 
Processing PropertiesMetricEnglishComments
Cure Time  120 min
@Temperature 80.0 °C
2.00 hour
@Temperature 176 °F
Minimum
 2880 min
@Temperature 23.0 °C
48.0 hour
@Temperature 73.4 °F
Minimum
Pot Life 90 min90 min
Shelf Life 6.00 Month
@Temperature 25.0 °C
6.00 Month
@Temperature 77.0 °F
 
Descriptive Properties
ColorClearPart B
 GrayPart A
ConsistencySmooth flowing paste
Mix Ratio by Weight10:2
Number of ComponentsTwo
Thixotropic Index2.2
Weight Loss0.5%200°C
 1.18%250°C
 4.51%300°C

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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