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AA-BOND F123MV Epoxy Adhesive, Fast Cure, Low Visc, 2 Part, Fiber Optic Connectors

AA-BOND F123MV  Epoxy Adhesive, Fast Cure, Low Visc, 2 Part, Fiber Optic Connectors
Product Code: AA-Bond F123MV
Availability: In Stock
This product has a minimum quantity of 1

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Technical Product Bulletin



AA-Bond F123MV is a low viscosity, two-component epoxy formulation that signals both proper mixing and curing when bonding fiber optic bundles, potting glass fibers, and/or terminating single or multi-channel fiber optic connectors. Although this unique three-step color-change formulation unmixed components are light yellow, it turns light green on mixing, and changes again to a deep reddish-amber after the REQUIRED 100°C HIGH TEMPERATURE CURE. It exhibits good wicking, and develops strong, tough, mechanically stable bonds to a wide variety of fiber optic and optical materials that includes most metals, ceramics, glass and many plastics.

AA-Bond F123MVhas good impact and thermal shock resistance, and yields excellent low stress, pot-and-polish connections which do not piston during cycle tests. It is also resistant to water and weathering, vapors and gases, most petroleum products, and an extended range of organic and inorganic environments. Shorter cures at higher temperatures (e.g. 2 minutes at 120°C or 1 minute at 150°C) are also possible. An additional post-cure of 30 minutes at 150°C is recommended when application temperatures higher than 150°C are anticipated.


Components 2 component - requires mixing
Mix Ratio by weight 100:10 / Resin:Hardener
Benefits Low viscosity
Thermal shock and impact resistant
Low stress connections
Color coded
Cure Type Room temperature or Heat Cure
Operating Temperature -60 to 175 °C
Typical Applications Fiber optic assembly, multimode and single mode connectors, small potting and sealing applications.
Appearance (Unmixed) Light yellow
(cured) Reddish-amber


Viscosity @ 25 °C 2100
Specific Gravity 1.19
Pot Life 2 hours


24 hours @ 25°C
5 minutes @ 100°C


Glass Transition (Tg), ultimate, °C 120
Hardness, Shore D 85
Refractive Index 1.54
Tensile Shear, alum to alum, psi 2800
Dielectric Strength 15.7 kV/mm 400 kV/in


For safe handling information on this product, consult the Material Safety Data Sheet, (MSDS).


1) Carefully clean and dry all surfaces to be bonded.

2) Apply Tra-Bond F123MV completely mixed adhesive to the prepared surfaces, and gently press these surfaces together. Contact pressure is adequate for strong, reliable bonds; however, maintain contact until adhesive is completely cured.

3) Some separation of components is common during shipping and storage. For this reason, it is recommended that the contents of the shipping container be thoroughly mixed prior to use.

4) Some ingredients in this formulation provided may crystallize when subjected to low temperature storage. A gentle warming cycle of 52°C for 30 minutes prior to mixing components may be necessary. Crystallized epoxy components do not react as well as liquid components and should be re-dissolved prior to use for best results.


This epoxy can be supplied in various different packages.

Data Sheets: TDS | MSDS available upon request.

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