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Fiber Optic Epoxies & Supplies
General Purpose 5-Minute Epoxy
Long Pot Life Epoxy
Fiber optic epoxy is a necessary component when terminating pigtailed fiber connectors. Thorlabs offers epoxies for a wide range of curing conditions as well as an application syringe. Refer to the individual descriptions below for details about our selection. Additional options include general-purpose epoxies and UV-curing adhesives.
F112 Long Pot Life, Room Temperature Cure
F120 Fast Room Temperature Cure
F123 Color-Keyed, High-Temperature Cure
EPO-TEK 353ND is known industry wide as a high temperature epoxy. This two part, 100% solid, heat curing epoxy can be used in applications requiring constant performance at temperatures up to 250 °C. It can handle 250 °C to 350 °C for brief periods. The epoxy is vacuum compatible and passes NASA low outgassing standard ASTM E595. Thorlabs offers 353ND epoxy in pre-measured, 4-gram packs that provide repeatable performance and eliminate the need for measuring.
Please note that epoxy resins are prone to solidification or crystallization. If this occurs, the product can easily be returned to a liquid state by immersing the tube in warm [approximately 100 °F (38 °C)] water for 30 minutes. Ensure all material is melted prior to use. Allow the resin component to return to room temperature prior to mixing with the hardener.
Empty Syringes For Epoxy Applications
We recommend our fiber optic disposal unit (FTDU, sold separately) to properly dispose of all syringes and epoxy.