When Scratches Appear After Using the Final Film

Published: May 28, 2018

, Last updated: September 17, 2025

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The four different versions of ÅngströmLap Ultimas Final Polish Lapping Film (Ultimas-P, Ultimas-U and two Ultimas Flock versions) can address multiple requirements and needs.

Here is a very brief overview of the different types of ÅngströmLap Ultimas Final Polish Lapping Films:

ÅngströmLap Ultimas-P Final Polish Lapping Film creates a positive fiber height for better physical contact and reflection values.
ÅngströmLap Ultimas-U Final Polish Lapping Film offers a slight undercut for higher connector matings.
ÅngströmLap Ultimas Flock Final Polish Lapping Film, designed for MTs, eliminates the core-dip on OM3-OM4 fibers and offers superior surface quality.
ÅngströmLap Ultimas Flock Final Polish Lapping Film, designed for large-core fibers (SMA connectors), offers a superior surface quality.

When scratches appear after using the final film, this typically relates back to earlier operational steps. It’s important to isolate and correct problematic issues throughout the assembly process. At Fiber Optic Center, we developed the ÅngströmLap Final Polish Lapping Film and fine-tuned the polishing process for fiber optic connectors.

READ THE BLOG: Why Do Scratches Appear After Using the Final Film?

Additional resources from the FOC team include:

Category Resource:
- FOC Film Page
View the Glossary, Acronyms, Military Specifications for Connectors
Q&A Resource: email technical questions to AskFOC@focenter.com

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FOC Tips 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 and supplies and has been helping customers make the best cable assemblies in the world for over two decades. Several areas of specialization and expertise, in which they are the industry leader, make them the preferred choice for many of the world’s fiber professionals. In these key technology areas, FOC is "at least as technical as the manufacturer" about the products they sell. Striving to "make the business part easy," they offer outstanding and personal customer service, low or no minimum purchase order values, and from-stock delivery on industry-leading products and technology. FOC is 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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