3M 7000118097 Psa Abrasive Disc 120 Grit 8 Inches

Product Description

The 3M 7000118097 is a pressure-sensitive adhesive (PSA) abrasive disc designed for material removal and surface finishing in professional grinding and sanding applications. Built on an F-weight paper backing, this disc uses aluminum oxide abrasive at 120 grit for fine-grade stock removal. The gold-colored disc measures 8 inches in diameter and attaches directly to PSA-compatible backup pads without fasteners or hook-and-loop systems. Each package contains 50 discs. Flexible construction allows the disc to conform to contoured surfaces, reducing gouging and improving finish consistency across wood, metal, and composite substrates.

This disc is suited for use on random orbital sanders in woodworking shops, metal fabrication environments, and general finishing applications. The 120-grit aluminum oxide abrasive handles intermediate sanding stages where surface scratch patterns need to be refined before final finishing steps. The PSA backing provides a firm, rattle-free mount on foam or rigid backup pads. No vacuum holes are included, making this disc appropriate for non-dust-collection setups or solid backup pad configurations. The Series 363I designation places this product within the 3M coated abrasives line.

Key Features

• 120 grit aluminum oxide abrasive for fine-grade material removal and surface preparation
• 8-inch diameter fits standard PSA backup pads on random orbital sanders
• F-weight paper backing provides flexibility to conform to contoured work surfaces
• Pressure-sensitive adhesive mount — no hook-and-loop hardware required
• Gold disc color aids worn-disc identification during use
• 50 discs per package for extended production runs

Compatibility

Designed for use with random orbital sanders equipped with 8-inch PSA backup pads. No vacuum holes are present; confirm backup pad configuration before installation.

Installation Notes

A licensed or experienced tradesperson should confirm backup pad diameter and PSA compatibility before mounting. Power down and unplug the sander completely before disc changes. Peel the liner from the PSA backing and press the disc firmly and evenly onto the backup pad to prevent edge lifting during operation. Discard discs that show torn backing, loading, or glazing, as degraded abrasives reduce cut rate and can generate excess heat.