3M 7010325533 Microfinishing Film Sheet 40 Micron

Product Description

The 3M 7010325533 is a microfinishing film abrasive sheet designed for precise, uniform, close-tolerance surface finishing. The sheet measures 8.5 inches by 11 inches and features a 40-micron aluminum oxide mineral on a high-strength polyester film backing. The abrasive mineral is resin-bonded to the backing for consistent cutting action and durability under repeated use. This product is used in metalworking, plastics finishing, and automotive refinishing applications where tight surface tolerances are required. It is sold as individual sheets and is suited for both hand and machine applications in professional trade and manufacturing environments.

This microfinishing sheet is used across a range of precision finishing applications including metal components, plastic substrates, automotive paint spot repair, and powertrain component superfinishing. It is appropriate for roll superfinishing operations where a controlled, repeatable surface finish is critical. The polyester film backing provides dimensional stability, making it effective on flat and contoured surfaces where paper-backed abrasives may stretch or tear.

Key Features

• 40-micron abrasive grade for precise, close-tolerance finishing
• High-strength polyester film backing resists stretching and tearing
• Resin-bonded mineral construction for consistent cut rate and durability
• Suitable for metal, plastic, paint spot repair, and powertrain superfinishing
• Flat sheet format compatible with hand and machine finishing applications
• Dimensionally stable backing performs on both flat and contoured surfaces

Compatibility

Designed as an OEM-style replacement abrasive sheet for precision microfinishing applications on metal, plastic, and painted surfaces in automotive and industrial environments.

Installation Notes

This product is installed and used by machinists, automotive technicians, and industrial finishing professionals. Always secure the sheet firmly to the backing surface or holder before use to prevent slippage. Inspect the abrasive surface before each use and replace the sheet when mineral loading or glazing is observed, as a worn sheet will not produce consistent results. Follow applicable shop safety guidelines for abrasive use, including eye and respiratory protection when dry sanding.

Technical Specifications

• Abrasive Grade: 40 Micron
• Sheet Size: 8.5 inches x 11 inches
• Backing Material: High-strength polyester film
• Bond Type: Resin-bonded
• Weight: 0.04 pounds
• Unit of Measure: Each
• Minimum Order Quantity: 50
• UPC: 00051111500293

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7010325533