3M 7000118889 Psa Cloth Disc 18 Inch 80 Grit Ao

Product Description

The 3M 7000118889 is a pressure-sensitive adhesive (PSA) cloth sanding disc engineered for heavy-duty material removal in industrial and trade finishing applications. Built on an X-weight cloth backing, this disc handles aggressive stock removal without tearing or edge breakdown. The aluminum oxide abrasive delivers fast cutting action and extended service life across a wide range of surfaces. A resin bond system protects the abrasive layer from heat buildup, preserving disc performance through demanding production cycles. At 18 inches in diameter and 80 grit, this disc is sized for large-format sanding equipment used by metal fabricators, woodworkers, and finishing professionals.

This disc is suited for both wet and dry sanding applications on metal, wood, composites, and other hard surfaces. The PSA backing adheres directly to a compatible backup pad or steel platen, eliminating the need for additional fasteners. Its 80 grit rating places it in the medium-aggressive range, appropriate for surface preparation, weld blending, and initial stock removal before finer finishing stages. Each disc is sold individually, with a minimum order quantity of 10 units, making it well suited for shop environments with high disc turnover.

Key Features

• Pressure-sensitive adhesive backing adheres to backup pads or steel platens and releases cleanly for fast disc changes
• X-weight cloth backing resists tearing and edge wear under aggressive sanding loads
• Aluminum oxide abrasive provides fast cut rate and long service life on multiple surface types
• Resin bond construction reduces heat damage to extend disc life in high-friction applications
• Compatible with both wet and dry sanding processes
• 18 inch diameter suits large-format disc sanders and finishing machines

Compatibility

Designed for use with backup pads or steel platens that accept 18 inch PSA-mount sanding discs. Verify platen diameter and PSA mounting type on the host machine before installation.

Installation Notes

Installation should be performed by qualified finishing or fabrication professionals familiar with large disc sanding equipment. Power down and lock out the machine before removing the spent disc and applying the replacement. Press the PSA backing firmly and evenly onto the platen or backup pad, working from the center outward to eliminate air pockets. Inspect the disc for proper seating before resuming operation.

Technical Specifications

• Disc Diameter: 18 inches
• Grit: 80
• Abrasive Type: Aluminum Oxide
• Backing Type: X-weight Cloth
• Attachment Type: Pressure-Sensitive Adhesive (PSA)
• Application: Wet or Dry
• Package Dimensions: 18.7 x 18.7 x 1.8 inches
• Weight: 0.62 pounds
• Sold As: Each
• Minimum Order Quantity: 10
• UPC: 00051144888795

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000118889