3M 7100020065 Psa Cloth Disc P240 Grit 3/4 Inch

Product Description

The 3M 7100020065 is a PSA cloth sanding disc designed for heavy-duty material removal in industrial and trade finishing applications. The disc measures 3/4 inch in diameter and carries a P240 grit aluminum oxide abrasive, making it suitable for fine stock removal and surface preparation. A pressure-sensitive adhesive backing allows the disc to mount quickly to a backup pad or steel platen and release cleanly without leaving adhesive residue. The resin bond system protects the abrasive layer from heat buildup, extending usable disc life under continuous operation. Rated to 20,000 RPM, this disc supports high-speed tooling commonly used in metal fabrication, woodworking, and composite finishing environments.

This disc is suited for both wet and dry sanding applications on metal, wood, and composite surfaces. The X-weight cloth backing resists tearing and edge wear under aggressive cutting pressure, making it a reliable choice for production grinding and finishing lines. Technicians and fabricators working with rotary tools, inline sanders, or disc grinders will find the PSA mount system speeds up disc changeovers during high-volume work.

Key Features

• Pressure-sensitive adhesive backing mounts to backup pads or steel platens and removes cleanly without residue
• X-weight cloth backing resists tearing and edge wear in aggressive sanding applications
• Aluminum oxide abrasive delivers fast cutting action and long service life across multiple surface types
• Resin bond construction dissipates heat to extend disc life during sustained use
• Compatible with both wet and dry sanding operations
• Rated at 20,000 RPM for use with high-speed rotary tooling

Compatibility

Designed as a PSA-mount replacement disc for backup pads and steel platens used with rotary disc grinders and inline sanders operating at up to 20,000 RPM.

Installation Notes

Ensure the tool is powered off and disconnected from its power source before mounting or removing the disc. Confirm the tool RPM rating meets or exceeds the disc RPM rating before operation. Press the disc firmly and evenly onto the backup pad or steel platen to achieve full adhesive contact before starting the tool. Inspect the disc for tears or delamination before each use and replace immediately if damage is found.

Technical Specifications

• Diameter: 3/4 inch
• Grit: P240
• Abrasive Material: Aluminum Oxide
• Backing Type: X-Weight Cloth
• Attachment Method: Pressure-Sensitive Adhesive (PSA)
• Max Speed: 20,000 RPM
• Application Type: Wet or Dry
• Weight: 0.01 pounds
• Unit of Measure: Each

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100020065