®

EPO-TEK OG198-54

Technical Data Sheet

For Reference Only
Shadow Curable UV Epoxy

Date: April 2022
No. of Components:
Specific Gravity:
Pot Life:
Shelf Life- Bulk:
Shelf Life- Syringe:

Recommended Cure

Rev: XVIISingle
1.12

Iron-Doped Mercury Flood Lamp

> 30 sec.

100 mW/cm 2 @ 240-365 nm

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

N/A

Six months refrigerated
Six months refrigerated> 30 sec.
> 30 sec.
> 30 sec.

UV Cure is complete after 24 hours
from UV Exposure

NOTES:* Contact Technical Services for application● Container(s) should be kept closed when not in use.
specific variations● Filled systems should be stirred thoroughly before mixing and prior to use.
● Performance properties (rheology, conductivity, others) of the product 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.
● Heat curable at 150°C/1 Hour

Product Description: EPO-TEK® OG198-54 is a single component, low viscosity, electrically and thermally insulating UV
cure epoxy.
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:
200 - 450 cPs* Viscosity (23°C) @ 100 rpm:
≥ 115 °C (Dynamic Cure:20-200°C/ISO 25 Min; Ramp -10-200°C @ 20°C/Min)* Glass Transition Temp:
Coefficient of Thermal Expansion (CTE):
74 x 10-6 in/in°C
Below Tg:
-6
145 x 10 in/in°C
Above Tg:
86
Shore D Hardness:
Die Shear:≥ 10 Kg
psi
UV Cure:3,556
20.8 Kg
UV Cure + 23°C/24 Hours:
7,396.5 psi
22.2 Kg
UV Cure + 80°C/1 Hour:
7,894.3 psi369°
CDegradation Temp:
0.24 %
Weight Loss:@ 200°C
0.62 %@ 250°C
1.80 %@ 300°C< 300 °C (Intermittent)
Suggested Operating Temperature:
449,431 psi
Storage Modulus:

OPTICAL PROPERTIES @ 23°C:
Spectral Transmission:
Refractive Index (uncured):
Refractive Index (cured):≥ 97% @ 460-1,680 nm
1.5046 @ 589 nm
1.5256 @ 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
A Meridian Adhesives Group Company

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®

EPO-TEK OG198-54

Technical Data Sheet

For Reference Only
Shadow Curable UV Epoxy

EPO-TEK® OG198-54 Advantages & Suggested Application Notes:● UV shadow cure allows for enhanced performance after a thermal post cure and significant curepropagation into shadow area.
● High Tg.
● Strong transmission in the Visible and IR regions.
● Suggested Applications:○ Active alignment of optics○ Bonding fibers to V-grooves○ Fiber pigtails○ Alignment in optoelectronic hybrids○ Semiconductor devices

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
A Meridian Adhesives Group Company

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