3M 7000118105 Psa Disc 5 in 220 Grit Aluminum Oxide 175 Pack

Product Description

The 3M 7000118105 is a pressure-sensitive adhesive (PSA) abrasive disc designed for surface finishing and material removal in professional grinding and sanding applications. The disc measures 5 inches in diameter and features 220 grit aluminum oxide abrasive in a very fine grade, making it well-suited for fine finishing passes, between-coat sanding, and surface prep ahead of primer or topcoat. The A-weight paper backing provides flexibility to conform to slightly contoured surfaces while maintaining consistent abrasive contact. Each pack contains 175 discs, supporting extended production runs without frequent reordering.

This disc is engineered for use with random orbital sanders in both shop and field environments. It is commonly used by finish carpenters, automotive body technicians, metal fabricators, and general trade professionals for wood, metal, and composite surface work. The PSA backing allows quick, tool-free disc changes directly onto compatible sanding pads. The 216U series designation indicates a production-grade disc suited for repetitive, high-volume finishing tasks in residential and light commercial work environments.

Key Features

• 220 grit aluminum oxide abrasive delivers very fine material removal for finish sanding and surface prep
• Pressure-sensitive adhesive backing allows fast, no-tool disc changes on compatible sanding pads
• A-weight paper backing adds flexibility for use on contoured and flat surfaces
• No vacuum holes — suited for pads without dust extraction ports
• 175 discs per pack supports high-volume production use
• Part of the 3M 216U series, a recognized production finishing line

Compatibility

Compatible with random orbital sanders equipped with 5-inch PSA sanding pads. No vacuum holes are present, so this disc is intended for solid (non-perforated) backup pads only.

Installation Notes

Installed by pressing the PSA-backed disc firmly onto a clean, dry 5-inch sanding pad — ensure the pad surface is free of debris or old adhesive residue before mounting. Power down the sander and disconnect it from the power source before changing discs. Discs should be stored flat and away from heat or humidity to preserve adhesive integrity. Inspect the disc for tears or loading before each use and replace when abrasive performance degrades.