Thorlabs - Fiber Optic Epoxies & Supplies

Thorlabs offers a wide range of epoxies for fiber optic pigtail connectorization. See the individual descriptions below for more details. We also offer general-purpose expoies and UV-curing adhesives.

Item #	F112	F120	F123	353NDPK**
Color, Cured	Dark Blue	Transparent, Straw	Clear Reddish-Brown*	Dark Red
Specific Gravity, Cured	1.200	1.220	1.200	1.18
Index of Refraction	1.51	n/a	1.56	1.5694 @ 589 nm
Viscosity, cPs, Mixed	1,800	14k Resin, 35k Hardener	4,000	3,000 - 5,000
Thixotropic Index	1.0	1.0	1.0	n/a
Operating Temperature Range	-60 to 120 °C	-60 to 115 °C	-60 to 175 °C	Cont: -55 to 250 °C Inter: -55 to 350 °C
Hardness, Shore D	86	72	87	85
Mix Ratio, pbw, Resin/Hardener	100/30	100/93	100/10	10:1
Glass Transition (Tg), Ultimate	102.00 °C	n/a	120.00 °C	≥90 °C
Water Absorption	0.070%	n/a	n/a	n/a
Coefficient of Expansion	6.20e01 ppm/°C	6.00e-05 cm/cm/°C	>Tg: 2.03e02 ppm/°C <Tg: 6.31e01 ppm/°C	>Tg: 54e-06 in/in/°C <Tg: 206e-06 in/in/°C
Impact, Izod	n/a	1.90 ft-lbs/inch of notch	n/a	n/a
Dielectric Strength	n/a	400 V/mil	400 V/mil	n/a
Dielectric Constant	n/a	4.40 (1 KHz @ 25 °C)	n/a	3.17 (1 KHz @ 23 °C)
Pot Life	2 g, 30 min	5 min	4 hr	3 - 4 hr
Working Life	2 g, 1 hr	n/a	n/a	n/a
Cure Schedule	24 hr @ 25 °C or 1 hr @ 65 °C or 15 min @ 90 °C	24 hr @ 25 °C or 1 hr @ 65 °C	5 min @ 100 °C	30 min @ 80 °C 10 min @ 100 °C 5 min @ 120 °C 1 min @ 150 °C

*Unmixed color: clear light yellow. Mixed color: clear green/blue.
**Data is not guaranteed, only for reference. Different batches, conditions, and applications yield differing results.

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Posted Comments:

Poster: jjurado

Posted Date: 2011-06-28 11:47:00.0

Response from Javier at Thorlabs to c.j.lee: Thank you very much for contacting us. Although we currently do not have thermal conductivity specs for our epoxies and other adhesives, we can say that, based on the operating temperatures, the resins for these epoxies are relatively highly thermally conductive (see Specs Tab). Also, some of these epoxies, such as the F112, will absorb water and have hygroscopic properties. I will contact you directly to help you narrow down your choices based on your application's requirements.

Poster: c.j.lee

Posted Date: 2011-06-28 07:41:09.0

Do you know what the thermal conductivity of the resins are? We were thinking of using it to glue a BBO crystal in place. The crystal must be heated to ~70 degrees and dont want to have problems with the crystal overheating and cracking. Also, I assume that since it is a epoxy resin that it is not hygroscopic? Customer Email: c.j.lee@rijnhuizen.nl

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Fiber Optic Epoxies & Supplies