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Master Bond adhesives

Epoxy Technology EPO-TEK® H81A Epoxy
Categories: Polymer; Thermoset; Epoxy

Material Notes: Material Description: A two component, gold-filled, electrically and thermally conductive epoxy designed for hybrid microelectronic and semiconductor packaging.

Information Provided by Epoxy Technology

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Physical PropertiesMetricEnglishComments
Specific Gravity 5.62 g/cc5.62 g/ccPart B
 5.80 g/cc5.80 g/ccPart A
Particle Size <= 50 µm<= 50 µm
Viscosity 250000 - 300000 cP
@Temperature 23.0 °C
250000 - 300000 cP
@Temperature 73.4 °F
0.5 rpm
 
Mechanical PropertiesMetricEnglishComments
Shear Strength >= 11.7 MPa>= 1700 psiDie
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity <= 0.00090 ohm-cm<= 0.00090 ohm-cm
 
Thermal PropertiesMetricEnglishComments
Maximum Service Temperature, Air 250 °C482 °FContinuous
 350 °C662 °FIntermittent
Minimum Service Temperature, Air -55.0 °C-67.0 °FContinuous
 -55.0 °C-67.0 °FIntermittent
Glass Transition Temp, Tg >= 100 °C>= 212 °FDynamic Cure 20—200°C /ISO 25 Min; Ramp -10—200°C @ 20°C/Min
Decomposition Temperature 412 °C774 °FDegradation Temperature
 
Processing PropertiesMetricEnglishComments
Cure Time 60.0 min
@Temperature 150 °C
1.00 hour
@Temperature 302 °F
Minimum
Pot Life 2880 min2880 min
Shelf Life 12.0 Month
@Temperature 25.0 °C
12.0 Month
@Temperature 77.0 °F
 
Descriptive Properties
ColorDark BrownPart A
 Dark BrownPart B
ConsistencyThick paste
Mix Ratio by Weight6:1
Number of ComponentsTwo
Weight Loss<0.5%200°C
 0.07%250°C
 0.16%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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PPOXYT049 / 141088

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