sales@foscoconnect.com
(510) 319-9878
Silicon Valley, CA, USA
Overview
The 3M EMSD 5" Final Step Polish Disc is a high-precision lapping film engineered for the critical final stage of fiber optic connector polishing. These discs are designed to produce a super-smooth end-face finish, ensuring optimal optical performance and minimal signal loss. By providing a consistent, repeatable finish, they help network technicians and manufacturing professionals achieve high first-pass yields and reduce the need for rework.
Constructed with micro-graded SiO2 abrasives bonded to a durable 3 mil polyester backing, these discs are specifically tailored for polishing ceramic, stainless steel, plastic, and composite ferrules. The plain-back design ensures ease of use in standard polishing equipment, while the absence of slurries promotes a clean working environment and simplifies cleanup procedures.
Key Features
-
Micro-Graded Abrasives
Uniformly bonded SiO2 particles provide consistent, repeatable polishing results across all connector types. -
Precision 3 mil Backing
High-quality polyester substrate ensures flatness and durability during the polishing process. -
Telcordia GR-326 Compliant
Meets rigorous industry standards for back reflection and end-face geometry. -
High First-Pass Yield
Minimizes the need for time-consuming connector rework by providing reliable, high-quality finishes. -
Slurry-Free Operation
Eliminates the need for messy liquid slurries, reducing cleanup time and maintenance. -
Versatile Compatibility
Suitable for use on a wide variety of ferrule materials including ceramic, stainless steel, and composite.
Applications
- Fiber optic connector manufacturing
- Field termination of fiber optic connectors
- Connector end-face refurbishment
- Precision polishing of ceramic ferrules
Package Contents
- 50 x 3M EMSD 5" Final Step Polish Discs
Technical Specifications
| Specification | Value |
|---|---|
| Manufacturer | 3M |
| Part Number | 863X5NH50 |
| Disc Diameter | 5 inches |
| Backing Material | 3 mil Polyester |
| Abrasive Type | SiO2 (Silicon Dioxide) |
| Backing Type | Plain (No PSA) |
| Quantity | 50 Discs per Pack |
Frequently Asked Questions
Are these discs adhesive-backed?
No, these specific discs feature a plain back (no PSA).
What ferrule materials can be polished with these discs?
They are suitable for ceramic, stainless steel, plastic, and composite ferrules.
Do these meet industry standards?
Yes, they meet Telcordia GR-326 standards for back reflection.
How many discs are in one pack?
This product is sold as a pack of 50 discs.
What is the backing thickness?
The polyester backing is 3 mils thick.

