Epoxy Technology EPO-TEK® OE121 Black Epoxy Adhesive

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Epoxy Technology EPO-TEK® OE121 Black Epoxy Adhesive
Categories:	Polymer; Adhesive; Thermoset; Epoxy; Epoxy Adhesive
Material Notes:	Material Description: A two component, low temperature curing epoxy adhesive designed for semiconductor flip chip underfill. It is color coded black for visual ID during the underfilling process. It may also be used for adhesive, potting, sealing, and encapsulation applications found within the electronics, medical, and optical industries. It is a black version of EPO-TEK® OE121. Information Provided by Epoxy Technology
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Physical Properties	Metric	English	Comments

Specific Gravity	0.960 g/cc	0.960 g/cc	Part B
	1.18 g/cc	1.18 g/cc	Part A
Particle Size	<= 20 µm	<= 20 µm
Viscosity	300 - 500 cP @Temperature 23.0 °C	300 - 500 cP @Temperature 73.4 °F	100 rpm

Chemical Properties	Metric	English	Comments
Ionic Impurities - Na (Sodium)	16 ppm	16 ppm
Ionic Impurities - K (Potassium)	1.0 ppm	1.0 ppm
Ionic Impurities - Cl (Chloride)	62 ppm	62 ppm

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	81	81
Tensile Modulus	1.71 GPa	249 ksi	Storage
Shear Strength	11.83 MPa	1716 psi	Lap
	35.2 MPa	5100 psi	Die

Electrical Properties	Metric	English	Comments
Volume Resistivity	>= 1.00e+13 ohm-cm	>= 1.00e+13 ohm-cm
Dielectric Constant	3.67 @Frequency 1000 Hz	3.67 @Frequency 1000 Hz
Dissipation Factor	0.012 @Frequency 1000 Hz	0.012 @Frequency 1000 Hz

Thermal Properties	Metric	English	Comments
CTE, linear	43.0 µm/m-°C	23.9 µin/in-°F	Below Tg
	158 µm/m-°C	87.8 µin/in-°F	Above Tg
Maximum Service Temperature, Air	200 °C	392 °F	Continuous
	275 °C	527 °F	Intermittent
Minimum Service Temperature, Air	-55.0 °C	-67.0 °F	Continuous
	-55.0 °C	-67.0 °F	Intermittent
Glass Transition Temp, Tg	>= 55.0 °C	>= 131 °F	Dynamic Cure 20—200°C /ISO 25 Min; Ramp 10—200°C @ 20°C/Min
Decomposition Temperature	350 °C	662 °F	Degradation Temperature

Optical Properties	Metric	English	Comments
Transmission, Visible	<= 1.0 % @Wavelength 340 - 1260 nm	<= 1.0 % @Wavelength 340 - 1260 nm	Spectral

Processing Properties	Metric	English	Comments
Cure Time	60.0 min @Temperature 90.0 °C	1.00 hour @Temperature 194 °F	minimum
	180 min @Temperature 80.0 °C	3.00 hour @Temperature 176 °F	minimum
	2880 min @Temperature 23.0 °C	48.0 hour @Temperature 73.4 °F	minimum
Pot Life	300 min	300 min
Shelf Life	12.0 Month @Temperature 25.0 °C	12.0 Month @Temperature 77.0 °F

Descriptive Properties
Color	Black		Part A
	Clear/Colorless		Part B
Consistency	Pourable liquid
Ionic Impurities NH₄	15 ppm
Mix Ratio by Weight	100:35
Number of Components	Two
Weight Loss	1.2%		200°C
	1.71%		250°C
	3.91%		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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PPOXYT141 / 141180

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