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EPO-TEK® 305 Spectrally Transparent Flexible Epoxy, Room Temperature Cure (4g)
EPO-TEK® 305 Spectrally Transparent Flexible Epoxy, Room Temperature Cure (4g)
ET305-4G EPO-TEK® 305 Spectrally Transparent, Room Temperature Cure, 2-Part Epoxy, 4 Gram Packet
The EPO-TEK® 305 Epoxy is a two-component, semi-rigid, optical grade epoxy for semiconductor packaging of fiber optics, optoelectronics and medical devices. It is an electrically and thermally insulating epoxy.
Features:
Capable of transmitting light in the UV range.
Low viscosity, water-like epoxy formulation.
Recommended Cure: 65°C / 1 Hour
Pot life: 1 Hour
Physical Properties:
Consistency: Pourable liquid
Viscosity (23°C): 150 - 250 cPs
Glass Transition Temperature, Tg: ≥ 35°C (degree Celsius); ≥ 95°F (degree Fahrenheit)
Shore D Hardness: 66
Coefficient of Thermal Expansion (CTE):
Below Tg: 31 x 10-6 in/in°C
Above Tg: 148 x 10-6 in/in°C
Suggested Operating Temperature: < 200 °C (Intermittent); < 392°F
Optical Properties:
Spectral Transmission:
> 67% @ 260 nm
> 95% @ 340 nm
> 98% @ 400 - 1600 nm
Refractive Index: 1.4763 @589 nm
See Datasheet for additional properties and application notes
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