Are the choice of epoxies critically important and if so, why?
The choice of epoxies is critically important. Most Telco/Data and OSP connectors are assembled with two part epoxies that provide high tensile strength, excellent bonding and hermetic sealing of the bare fiber. The industry standard has been a two part epoxy that requires thorough mixing of parts A and B (Resin and Hardener). It is important to note that a two part type of epoxy, such as AngstromBond AB9123 and EPOTEK 353ND, and others similar to its chemistry undergoes a distinct chemistry phase change during curing and heating to temperature. The first phase change is right before curing at the correct temperature (usually 100 C) the viscosity of the epoxy turns from molasses to water and tends to run and wick up the fiber, the cable and through all the internal diameters of the connectors. Within seconds of this first phase change is the 2nd and last phase change of the epoxy where it hardens to its final cured state. So the correct calculation of volume for each type of connector and assembly is critical for maximum performance and reliability.
READ THE FULL BLOG ARTICLE HERE: Assuring the correct amount of Epoxy is in the connector
Answered by AskFOC Technical Team May 17, 2018
Have a technical question for Fiber Optic Center?
Please email your question to AskFOC@focenter.com and we will respond ASAP.
In addition to replying, we will post your question and our answer here on the AskFOC page. Everyone remains anonymous when we post so feel comfortable asking your questions. You can also search to see if your question has already been answered in the FAQs section below.
- FOC Tips: visual inspection is made easier with an automated fiberscope - April 18, 2019
- Fiber Optic Center AskFOC: no changes in fiber optic cable assembly production process, but measured IL and RL values of product aren’t as good as they were-could there be something wrong with the measurement equipment? - April 17, 2019
- Press Release: Fiber Optic Center, Inc. Expands Marketing Department; Joni Montemagno joins as Director Marketing Promotions - April 17, 2019
- Press Release: Fiber Optic Center, Inc. announces FOC 20–5-1 campaign to support Children’s Cancer Research #20mtns5states1mission - April 16, 2019
- Fiber Optic Center AskFOC: in APC polishing is conical or step ferrules more expensive? - April 16, 2019
- FOC Tips: importance of controlling the amount of epoxy inside the ferrule-holder - April 15, 2019
- FOC Tips: Quick troubleshooting checklist for common APC polishing issues - April 11, 2019
- Fiber Optic Center AskFOC: We have issues with crystallized epoxy: has the epoxy had “gone bad”? - April 10, 2019
- Press Release: Fiber Optic Center, Inc. announces the appointment of Kelly Michael Skelton as Systems Architect - April 9, 2019
- FOC Tips: Contamination on the outside of the ferrule or inside the adapter sleeve - April 9, 2019