3M 7000118887 Psa Cloth Sanding Disc 40 Grit 20 Inch

Product Description

The 3M 7000118887 is a pressure-sensitive adhesive (PSA) coated cloth sanding disc designed for heavy-duty material removal on flat and contoured surfaces. Built on an X-weight cloth backing, this disc handles aggressive grinding and finishing work without tearing or edge breakdown. The aluminum oxide abrasive delivers fast cutting action and extended service life across a wide range of substrates. At 20 inches in diameter and 40 grit, it is sized for large-surface industrial sanding operations and mounts directly to a backup pad or steel platen via its PSA backing.

This disc is suited for industrial and production environments where high-volume sanding of metal, wood, composites, or other hard surfaces is required. The PSA backing allows fast disc swaps, reducing downtime during high-throughput operations. The resin bond system resists heat buildup, which is a common cause of premature disc failure in aggressive applications. It is compatible with both wet and dry sanding setups, giving operators flexibility across different finishing workflows.

Key Features

• Pressure-sensitive adhesive backing adheres firmly to backup pads or steel platens and releases cleanly for fast replacement
• X-weight cloth backing resists tearing and edge wear under aggressive material removal conditions
• Aluminum oxide abrasive provides fast cut rate and long service life on a variety of surfaces
• Resin bond construction protects against heat damage and extends disc longevity
• Suitable for both wet and dry sanding applications
• 20-inch diameter targets large surface area coverage in production or industrial settings

Compatibility

Designed for use with backup pads or steel platens that accept 20-inch PSA-mount sanding discs in industrial and production grinding or finishing applications.

Installation Notes

Installation is performed by qualified operators or industrial maintenance personnel. Power down and lock out the machine before mounting or removing the disc. Ensure the backup pad or steel platen surface is clean and free of debris before applying the PSA disc to achieve full adhesion. Do not exceed the maximum operating speed rated for the disc.

Technical Specifications

• Diameter: 20 inches
• Grit: 40
• Abrasive Material: Aluminum Oxide
• Backing Type: X-weight Cloth
• Attachment Method: Pressure-Sensitive Adhesive (PSA)
• Application Type: Wet and Dry
• Package Weight: 10.1 pounds
• Package Length: 20.7 inches
• Package Width: 20.7 inches
• Package Height: 1.8 inches
• UPC: 00051144888771

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000118887