3M 7100205966 Microfinishing Film Disc 8 Inch Ao

Product Description

The 3M 7100205966 is a microfinishing film disc engineered for precise, close-tolerance surface finishing in professional and industrial applications. It uses a micron-graded aluminum oxide mineral resin-bonded to a high-strength 3 MIL polyester film backing, delivering consistent cut and finish control. At 8 inches in diameter, this disc is suited for defect repair and leveling, paint preparation, and final finishing stages. The water-resistant backing supports both wet and dry use, making it adaptable to a range of surface prep workflows. Installers and finishing technicians working on tight-tolerance surfaces will find the color-coded design reduces the risk of grade selection errors during a job.

This disc is designed for applications requiring uniform, repeatable finishes on close-tolerance surfaces. Typical use cases include automotive paint defect repair, final finishing prior to coating, and surface leveling on metal or painted substrates. The aluminum oxide mineral provides a fast cut rate while the film backing maintains dimensional stability under load. It is well suited for professional bodywork, precision metalworking, and industrial finishing operations where surface consistency is critical.

Key Features

• Micron-graded aluminum oxide mineral for close-tolerance precision finishes
• High-strength 3 MIL polyester film backing resin-bonded for durability and stability
• Water-resistant construction supports wet or dry finishing applications
• Color-coded design simplifies grade selection and reduces job-site error
• Suited for defect repair, surface leveling, paint prep, and final finishing

Compatibility

Designed as an OEM-style replacement disc for 8 inch random orbital and disc finishing tools used in professional surface preparation and finishing applications.

Installation Notes

This disc is installed by qualified finishing technicians or tradespeople familiar with abrasive disc equipment. Ensure the backing pad and tool are powered down and at a full stop before mounting or removing any disc. Verify the disc diameter and arbor interface match the tool before use. Follow all applicable workplace safety guidelines for abrasive products, including appropriate eye and respiratory protection.

Technical Specifications

• Diameter: 8 inches
• Abrasive Mineral: Aluminum Oxide
• Backing Material: Polyester Film
• Backing Thickness: 3 MIL
• Backing Properties: Water-resistant, resin-bonded
• Weight: 1.039 pounds
• Package Dimensions: 9 x 9 x 6.4 inches
• Unit of Measure: Each

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100205966