sales@foscoconnect.com
(510) 319-9878
Silicon Valley, CA, USA
Overview
This 3M lapping film features precisely graded aluminum oxide particles coated onto a 3 mil polyester backing, designed for high-performance finishing applications. The Type F formulation ensures a consistent cut rate and uniform finish on a variety of substrates, making it an essential consumable for precision fiber optic polishing processes.
These 5-inch discs are manufactured with a plain back, requiring no adhesive for attachment. Each pack provides 50 individual discs, offering durability and reliable performance in demanding polishing environments.
Key Features
-
Aluminum Oxide Abrasive
Precisely graded particles provide a consistent cut rate for uniform surface finishes. -
Polyester Backing
The 2 mil (nominal) backing offers structural integrity during high-speed polishing operations. -
Type F Formulation
Engineered to deliver predictable results and consistent life cycles across multiple polishing steps. -
Plain Back Design
Non-PSA backing allows for quick and secure mounting in standard polishing fixtures. -
Precision Sizing
5-inch diameter discs ensure compatibility with standard industrial polishing equipment. -
Packaged for Productivity
Supplied in a 50-pack to support high-volume manufacturing and lab environments.
Applications
- Fiber optic connector polishing
- Precision finishing of optical substrates
- Flatness and surface finish refinement
Technical Specifications
| Specification | Value |
|---|---|
| Manufacturer | 3M |
| Abrasive Material | Aluminum Oxide |
| Particle Size | 2µm |
| Type | Type F |
| Backing Material | 3 mil Polyester |
| Disc Diameter | 5-inch |
| Backing Type | Plain (Non-PSA) |
| Package Quantity | 50 Pack |
Frequently Asked Questions
What is the difference between PSA and plain back lapping film?
PSA (Pressure Sensitive Adhesive) films have an adhesive layer on the back for sticking to a polishing platen. Plain back films, like this one, do not have adhesive and are typically held in place by vacuum or mechanical clips.
What is the primary abrasive material used?
This film uses precisely graded aluminum oxide, which is standard for achieving high-quality finishes on fiber optic connectors.
Can this film be used for dry polishing?
Typically, lapping films are used with a liquid lubricant or slurry to optimize the cut rate and extend the life of the film.
Is the backing thickness consistent?
Yes, this film uses a 3 mil polyester backing that provides dimensional stability throughout the polishing process.
How many discs are included in one order?
This product is sold as a 50-pack.

