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EPO-TEK OG142-87
Technical Data Sheet
For Reference Only
UV Cure Optical Epoxy
Date: June 2017
No. of Components:
Mix Ratio by Weight:
Specific Gravity:
Pot Life:
Shelf Life:

Recommended Cure

Rev: XISingle
N/A
1.17
N/A
One year refrigerated

Iron-Doped Mercury Flood Lamp

> 30 sec.

Alternative Cures*
Iron-Doped Mercury Spot Lamp
365nm LED Flood Lamp
Pulsed Mercury Lamp

> 90 sec.
> 90 sec.
> 60 sec.

2100 mW/cm @ 240-365 nm

UV Cure is complete after 24 hours fromUV Exposure* Contact Technical Services for applicationspecific variationsNOTES:● Container(s) should be kept closed when not in use.
● Filled systems should be stirred thoroughly before mixing and prior to use.
● Performance properties (rheology, conductivity, others) of the Products may vary from those stated on the data sheet when bi-pak/syringe packaging or
post-processing of any kind is performed. Epoxy’s warranties shall not apply to any products that have been reprocessed or repackaged from Epoxy’s
delivered status/container into any other containers of any kind, including but not limited to syringes, bi-paks, cartridges, pouches, tubes, capsules, films
or other packages..
● Thermal post-cure beneficial - contact techserv@epotek.com for recommendations.

Product Description: EPO-TEK® OG142-87 is a single component, low viscosity, UV curable epoxy for adhesive sealing
and encapsulating fiber optic and optoelectronic packaging application. It is a replacement version of EPO-TEK® OG142-13
with better bonding strength and moisture resistance.
Typical Properties: Cure condition: varies as required *denotes test on lot acceptance basis Data below is not guaranteed.
To be used as a guide only, not as a specification. Different batches, conditions & applications yield differing results.

PHYSICAL PROPERTIES:
Clear/Colorless* Color (before cure):
Pourable liquid* Consistency:
250 - 600 cPs* Viscosity (23°C) @ 100 rpm:
N/A
Thixotropic Index:≥ 100 °C (Dynamic Cure:20-200°C/ISO 25 Min; Ramp -10-200°C @ 20°C/Min)* Glass Transition Temp:
Coefficient of Thermal Expansion (CTE):
50 x 10-6 in/in°C
Below Tg:
162 x 10-6 in/in°C
Above Tg:
82
Shore D Hardness:
N/A
Lap Shear @ 23°C:
Die Shear:≥ 25 Kg 8,890
psi
UV Cure:UV Cure + 23°C/24 Hours
25.1 Kg 8,925.6 psi
25.1 Kg 8,925.6 psi
UV Cure + 80°C/1 Hour
384 °C
Degradation Temp:
0.32 %
Weight Loss:@ 200°C
0.64 %@ 250°C
1.58 %@ 300°C< 300 °C (Intermittent)
Suggested Operating Temperature:
520,650 psi
Storage Modulus:
N/A* Particle Size:
OPTICAL PROPERTIES @ 23°C:
Spectral Transmission:
Refractive Index (uncured):
Refractive Index (cured):≥ 97% @ 580-1,660 nm
1.4925 @ 589 nm
1.5058 @ 589 nm

Epoxies and Adhesives for Demanding Applications™
This information is based on data and tests believed to be accurate. Epoxy Technology, Inc. makes no warranties (expressed or implied) as to its
accuracy and assumes no liability in connection with any use of this product.

EPOXY TECHNOLOGY, INC.
14 FORTUNE DRIVE, BILLERICA, MA 01821 (978) 667-3805, FAX (978) 663-9782

www.epotek.com

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EPO-TEK OG142-87
Technical Data Sheet
For Reference Only
UV Cure Optical Epoxy

EPO-TEK® OG142-87 Advantages & Suggested Application Notes:● Semiconductor: fill for UV dam and fill encapsulation over ICs and wire bonds. Commonly potted intocavities, epoxy dams, or plastic rings● Fiber Optic: secure fibers into V-grooves; mounting glass cover over fiber arrays○ Adheres glass and plastic lens for fiber/lens arrays○ Fiber splicing, coupling, and joining. Maintains consistent alignment in active optical pathways● Optics: adheres glass, Lexan, polycarbonate, and many other plastics● Adhesive in the active beam path capable of transmitting light in the 400-200 nm range● Bonds beam splitter cubes and prisms

Epoxies and Adhesives for Demanding Applications™
This information is based on data and tests believed to be accurate. Epoxy Technology, Inc. makes no warranties (expressed or implied) as to its
accuracy and assumes no liability in connection with any use of this product.

EPOXY TECHNOLOGY, INC.
14 FORTUNE DRIVE, BILLERICA, MA 01821 (978) 667-3805, FAX (978) 663-9782

www.epotek.com
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