3M 7000118891 Psa Cloth Sanding Disc 80 Grit 18 Inch

Product Description

The 3M 7000118891 is a pressure-sensitive adhesive (PSA) cloth sanding disc designed for heavy-duty material removal in industrial and professional finishing environments. Built on an X-weight cloth backing, this 18-inch diameter disc uses aluminum oxide abrasive at 80 grit for fast, aggressive cutting across a wide range of surfaces. A resin bond system locks the abrasive grains in place and dissipates heat to extend disc life. The PSA backing adheres firmly to compatible backup pads or steel platens and releases cleanly for fast changeovers, reducing downtime during production runs. Fabricators, metalworkers, and finishing technicians typically install and operate this disc.

This disc is suited for both wet and dry sanding applications on metal, wood, composites, and similar materials. The 18-inch diameter and 80-grit aluminum oxide construction make it appropriate for wide-surface stock removal, weld blending, and intermediate finishing steps on large flat or near-flat workpieces. The 14-inch arbor hole accommodates compatible large-diameter disc machines and rotary platens found in industrial production and shop environments. Minimum order quantity is 10 discs per purchase.

Key Features

• Pressure-sensitive adhesive backing adheres to backup pads or steel platens and allows clean, fast removal for quick disc replacement
• X-weight cloth backing resists tearing and edge wear during aggressive material removal
• Aluminum oxide abrasive delivers fast cut rates and long service life across multiple surface types
• Resin bond protects against heat damage, extending overall disc life
• Suitable for both wet and dry sanding applications
• 18-inch diameter with 14-inch arbor hole fits large-diameter disc machines and rotary platens

Compatibility

Designed for use with large-diameter disc machines, rotary platens, and backup pads that accept an 18-inch PSA-mount sanding disc with a 14-inch arbor hole.

Installation Notes

Disc installation and replacement should be performed by qualified fabricators or machine operators familiar with large-diameter disc equipment. Power down and de-energize the machine fully before mounting or removing the disc. Ensure the backup pad or steel platen surface is clean and free of debris before applying the PSA backing to achieve proper adhesion. Follow the equipment manufacturer's operating guidelines and applicable workplace safety standards when running abrasive discs at rated speeds.