Epoxy Technology EPO-TEK® B9021 Epoxy Paste

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Epoxy Technology EPO-TEK® B9021 Epoxy Paste
Categories:	Polymer; Thermoset; Epoxy
Material Notes:	Material Description: A single component, B-stageable epoxy paste for semiconductor, microelectronics, and optical assemblies. It can be used in hybrid assemblies for lid-sealing and substrate attach. It can be used as the main gasket seal of glass plates in LCDs or sealing filter windows onto opto-sensors. Information Provided by Epoxy Technology
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Physical Properties	Metric	English	Comments

Specific Gravity	1.35 g/cc	1.35 g/cc
Particle Size	<= 20 µm	<= 20 µm
Viscosity	4000 - 8000 cP @Temperature 23.0 °C	4000 - 8000 cP @Temperature 73.4 °F	50 rpm

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	76	76
Tensile Modulus	1.58 GPa	230 ksi	Storage
Shear Strength	6.80 MPa	986 psi	Lap
	9.38 MPa	1360 psi	Die

Thermal Properties	Metric	English	Comments
CTE, linear	36.0 µm/m-°C	20.0 µin/in-°F	Below Tg
	57.0 µm/m-°C	31.7 µin/in-°F	Above Tg
Maximum Service Temperature, Air	160 °C	320 °F	Continuous
	260 °C	500 °F	Intermittent
Minimum Service Temperature, Air	-55.0 °C	-67.0 °F	Continuous
	-55.0 °C	-67.0 °F	Intermittent
Glass Transition Temp, Tg	>= 60.0 °C	>= 140 °F
Decomposition Temperature	313 °C	595 °F	Degradation Temperature

Processing Properties	Metric	English	Comments
Dry Time	<= 24.0 hour	<= 24.0 hour
Cure Time	30.0 min @Temperature 75.0 °C	0.500 hour @Temperature 167 °F	minimum, B-stage
Pot Life	40320 min	40320 min
Shelf Life	12.0 Month	12.0 Month	refrigerated

Descriptive Properties
Color	White		before cure
Consistency	Smooth paste
Number of Components	Single
Weight Loss	3.77%		200°C
	4.41%		250°C
	7.97%		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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PPOXYT154 / 141193

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