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Cleaning the Entire Surface of an MT Ferrule Most Effectively

Published: February 24, 2017
, Last updated: September 10, 2025

QUESTION:  What is the most effective way for cleaning the entire surface of an MT ferrule?

 

ANSWER:

Ultrasonic cleaning of ferrules after polish, and guide-pin hole brushing during / after polish.

Contamination on the surface of the ferrule is a major (if not THE major) contributing factor to poor testing performance (assuming, of course, that the connector was built properly and meets geometry specs).   The best way to clean entire ferrule surface, in my opinion, is to clean all ferrule in an ultrasonic bath (using filtered / DI water).  This removes all contamination from guide pins / holes and surface of the ferrule.

Care should (and must) be taken through the entire assembly process after polishing, to minimize contamination of ferrule surface, guide pins, etc.

Also: guide pin holes should be scrubbed with brush during polishing to make sure loose particles of abrasive or removed ferrule material don’t stay in the holes and prevent future issues when mating/un-mating.

 

 

ADDITIONAL CONTENT & RESOURCES:

 

 

  Answered by AskFOC Technical Team February 24, 2017

 

 

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FOC FAQ Fiber Optic Center has a team of technical experts and marketing strategists with decades of years in the field. This team contributes to the fiber, cable and specialty industries coverage through news, alerts, reports and general media information.
About Fiber Optic Center, Inc.
Fiber Optic Center, Inc., (FOC), is an international leader in distributing fiber optic components, equipment, materials, and supplies known for helping customers make the best cable assemblies in the world for over three decades. Material property consultation is provided by technical experts for lapping film, epoxy, adhesives, optical coatings, and optical plastics during application specific material selection. Technical process expertise is offered in several key technology areas. Specialized expertise includes cable assembly line mastery, fiber broadband field installation best practices, and technical advancements in telecom, datacom, data centers, and hyperscale. Optical cable specification development includes design and quality testing. FOC's impact reaches the network physical capabilities through fiber manufacturing process expertise from preform fabrication and shaping, fiber drawing, and coating requirements for double clad fibers used for high power fiber laser applications to solution doping, vapor phase doping, rare earth chelates and halide recipe consultation. Fiber Optic Center is the preferred choice for the world’s fiber professionals as the industry connection to the most innovative optical products, technologies and technical experts who integrate their manufacturing knowledge and vast experience into customers' worldwide operations. @FiberOpticCntr

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