Epoxy Technology EPO-TEK® OG178 UV Cure Optical Epoxy

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Epoxy Technology EPO-TEK® OG178 UV Cure Optical Epoxy
Categories:	Polymer; Thermoset; Epoxy
Material Notes:	Material Description: A single component, UV/visible shifted light curable epoxy, designed for adhesive, sealing, coating and encapsulating applications found in semiconductor, electro-optics, fiber optics, medical, and scientific/OEM industries. It is a low viscosity, all-purpose adhesive. Information Provided by Epoxy Technology
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Physical Properties	Metric	English	Comments

Specific Gravity	1.15 g/cc	1.15 g/cc
Viscosity	300 - 600 cP @Temperature 23.0 °C	300 - 600 cP @Temperature 73.4 °F	100 rpm

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	86	86
Tensile Modulus	1.52 GPa	221 ksi	Storage
Shear Strength	>= 23.4 MPa	>= 3400 psi	Die

Thermal Properties	Metric	English	Comments
CTE, linear	68.0 µm/m-°C	37.8 µin/in-°F	Below Tg
	185 µm/m-°C	103 µin/in-°F	Above Tg
Maximum Service Temperature, Air	125 °C	257 °F	Continuous
	225 °C	437 °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	Post-Cure Dynamic Scan 20200°C; Ramp -40200°C @ 20°C/Min
Decomposition Temperature	296 °C	565 °F	Degradation Temperature

Optical Properties	Metric	English	Comments
Refractive Index	1.528 @Wavelength 589 nm	1.528 @Wavelength 589 nm
Transmission, Visible	>= 95 % @Wavelength 380 - 520 nm	>= 95 % @Wavelength 380 - 520 nm	Spectral
	>= 99 % @Wavelength 541 - 1660 nm	>= 99 % @Wavelength 541 - 1660 nm	Spectral

Processing Properties	Metric	English	Comments
Shelf Life	12.0 Month	12.0 Month	refrigerated

Descriptive Properties
Color	Clear Orange		before cure
Consistency	Pourable liquid
Number of Components	Single
Weight Loss	2.45%		200°C
	3.19%		250°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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PPOXYT169 / 141208

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