Epoxy Technology EPO-TEK® 320NC Optically Opaque Epoxy

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Epoxy Technology EPO-TEK® 320NC Optically Opaque Epoxy
Categories:	Polymer; Thermoset; Epoxy
Material Notes:	Material Description: A two component, black-colored and optically opaque epoxy designed for optical, medical, and opto-electronic packaging of semiconductor devices and components. It is a modification of EPO-TEK® 320 for increased insulation and dielectric properties. Information Provided by Epoxy Technology
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Physical Properties	Metric	English	Comments

Specific Gravity	0.880 g/cc	0.880 g/cc	Part B
	2.06 g/cc	2.06 g/cc	Part A
Viscosity	1000 - 3000 cP @Temperature 23.0 °C	1000 - 3000 cP @Temperature 73.4 °F	100 rpm

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	85	85
Tensile Modulus	3.71 GPa	538 ksi	Storage
Shear Strength	>= 13.8 MPa	>= 2000 psi	Lap
	>= 35.2 MPa	>= 5100 psi	Die

Electrical Properties	Metric	English	Comments
Volume Resistivity	>= 2.00e+11 ohm-cm	>= 2.00e+11 ohm-cm
Dielectric Constant	9.92 @Frequency 1000 Hz	9.92 @Frequency 1000 Hz
Dissipation Factor	0.067 @Frequency 1000 Hz	0.067 @Frequency 1000 Hz

Thermal Properties	Metric	English	Comments
CTE, linear	28.0 µm/m-°C	15.6 µin/in-°F	Below Tg
	94.0 µm/m-°C	52.2 µin/in-°F	Above Tg
Maximum Service Temperature, Air	175 °C	347 °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	>= 50.0 °C	>= 122 °F	Dynamic Cure 20—200°C /ISO 25 Min; Ramp 10—200°C @ 20°C/Min
Decomposition Temperature	340 °C	644 °F	Degradation Temperature

Optical Properties	Metric	English	Comments
Transmission, Visible	<= 1.0 % @Wavelength 300 - 2500 nm	<= 1.0 % @Wavelength 300 - 2500 nm	Spectral

Processing Properties	Metric	English	Comments
Cure Time	60.0 min @Temperature 65.0 °C	1.00 hour @Temperature 149 °F
	1440 min @Temperature 23.0 °C	24.0 hour @Temperature 73.4 °F
Pot Life	20 min	20 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	Smooth pourable liquid
Mix Ratio by Weight	10:1
Number of Components	Two
Weight Loss	0.39%		200°C
	0.63%		250°C
	1.31%		300°C

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PPOXYT118 / 141157

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