3M 7100069386 Microfinishing Psa Film Disc 268L 8 Inch

Product Description

The 3M 7100069386 is a Microfinishing PSA Film Disc from the 268L series, designed for precision surface finishing across a wide range of materials. The disc features micron-graded aluminum oxide mineral bonded to a durable polyester film backing, delivering a fast cut rate and a consistent, uniform finish. Rated at 6000 RPM, it is sized at 8 inches in diameter and uses a Pressure-Sensitive Adhesive backing for tool mounting. It is well suited for applications where surface finish quality and abrasive consistency are critical requirements across production and finishing environments.

This disc is used in wood finishing, solid surface composite work, metal fabrication, plastics, and fiberglass applications. The polyester film backing resists tearing under heavy use, extending abrasive service life in demanding production settings. The disc may also be run wet to reduce loading and minimize airborne residue, making it adaptable to both dry and wet finishing operations. Fabricators, woodworkers, and metalworking professionals working with random orbital or disc sanders will find this disc applicable to both coarse and fine finishing stages depending on the selected grade.

Key Features

• Micron-graded aluminum oxide mineral for a fast cut rate and uniform surface finish
• Polyester film backing resists tearing and withstands heavy production use
• Pressure-Sensitive Adhesive (PSA) backing for secure, quick attachment to abrasive tools
• Rated at 6000 RPM for compatibility with standard disc finishing equipment
• Can be run wet to reduce loading and control airborne residue
• Suitable for use on metals, hardwoods, softwoods, plastics, composites, and fiberglass

Compatibility

Designed for use with PSA-style random orbital sanders and disc finishing tools that accept 8-inch diameter abrasive discs rated for up to 6000 RPM.

Installation Notes

Mounting is performed by pressing the PSA-backed disc firmly onto a clean, dry backing pad to ensure full adhesion before operation. Verify that the tool RPM does not exceed the disc rating of 6000 RPM before use. When running wet, confirm that the tool and work environment are compatible with wet abrasive operation. Inspect the disc for tears or delamination before each use and replace if backing integrity is compromised.

Technical Specifications

• Disc Diameter: 8 inches
• Abrasive Mineral: Aluminum Oxide (micron-graded)
• Backing Material: Polyester Film
• Attachment Type: Pressure-Sensitive Adhesive (PSA)
• Maximum Speed: 6000 RPM
• Weight: 0.03 pounds
• Package Dimensions: 9.21 inches x 7.13 inches x 9.2 inches
• Unit of Measure: Each
• UPC: 00051144769674

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100069386