Epoxy Technology EPO-TEK® 320-3 Optically Opaque Epoxy

Category	Polymer , Thermoset , Epoxy
Manufacturer	Epoxy Technology
Trade Name	EPO-TEK®
Port	Ningbo port,China
Trade Terms	FOB, CFR, CIF
Payment Terms	L/C, T/T, Western Union
Download PDF	Epoxy Technology EPO-TEK® 320-3 Optically Opaque Epoxy.pdf
Price	EMAIL US sales@lookpolymers.com

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 electrical insulation, higher Tg, and more viscous appearance.Information Provided by Epoxy Technology

Physical Properties	Metric	English	Comments
Specific Gravity	1.06 g/cc	1.06 g/cc	Part B
	1.52 g/cc	1.52 g/cc	Part A
Viscosity	5800 - 8200 cP @Temperature 23.0 °C	5800 - 8200 cP @Temperature 73.4 °F	50 rpm

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	88	88
Tensile Modulus	3.63 GPa	526 ksi	Storage
Shear Strength	>= 13.8 MPa	>= 2000 psi	Lap
	>= 23.4 MPa	>= 3400 psi	Die

Thermal Properties	Metric	English	Comments
CTE, linear	27.0 µm/m-°C	15.0 µin/in-°F	Below Tg
	109 µm/m-°C	60.6 µin/in-°F	Above Tg
Maximum Service Temperature, Air	200 °C	392 °F	Continuous
	300 °C	572 °F	Intermittent
Minimum Service Temperature, Air	-55.0 °C	-67.0 °F	Continuous
	-55.0 °C	-67.0 °F	Intermittent
Glass Transition Temp, Tg	>= 70.0 °C	>= 158 °F	Dynamic Cure 20—200°C /ISO 25 Min; Ramp 10—200°C @ 20°C/Min
Decomposition Temperature	395 °C	743 °F	Degradation Temperature

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

Electrical Properties	Metric	English
Volume Resistivity	>= 2.50e+11 ohm-cm	>= 2.50e+11 ohm-cm
Dielectric Constant	5.19 @Frequency 1000 Hz	5.19 @Frequency 1000 Hz
Dissipation Factor	0.027 @Frequency 1000 Hz	0.027 @Frequency 1000 Hz

Processing Properties	Metric	English
Cure Time	10.0 min @Temperature 150 °C	0.167 hour @Temperature 302 °F
Pot Life	90 min	90 min
Shelf Life	12.0 Month @Temperature 25.0 °C	12.0 Month @Temperature 77.0 °F

Descriptive Properties	Value	Comments
Color	Amber	Part B
	Black Opaque	Part A
Consistency	Slightly thixotropic paste
Mix Ratio By Weight	10:1
Number of Components	Two
Weight Loss	0.16%	200°C
	0.36%	250°C
	0.9%	300°C

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