3M 7000118782 Psa Abrasive Disc 5 Inch 100 Grit 100 Pack

Product Description

The 3M 7000118782 is a pressure-sensitive adhesive (PSA) abrasive disc designed for material removal and surface finishing in trade and industrial applications. Built on an X-weight cloth backing, this disc delivers the rigidity needed for aggressive stock removal while remaining flexible enough to conform to contoured surfaces. The abrasive material is aluminum oxide at 100 grit, placing it in the fine grade range — suited for intermediate finishing passes, light blending, and surface prep ahead of coating. Each package contains 100 discs at 5 inches in diameter. The disc weighs approximately 3.15 pounds per box of 100.

These PSA discs are used in fabrication shops, production environments, and maintenance settings where consistent, repeatable surface finishing is required. The PSA backing allows fast disc changes on compatible platens without the need for hook-and-loop hardware. Typical applications include bench-top motor setups and random orbital sanders, making them suitable for metal finishing, woodworking prep, and composite surface work. The brown cloth construction handles heat and lateral stress better than paper-backed alternatives, extending disc life under sustained use.

Key Features

• 5 inch diameter PSA disc — mounts directly to adhesive-compatible platens
• 100 grit aluminum oxide abrasive — fine grade for intermediate finishing and surface prep
• X-weight cloth backing provides durability and flexibility on contoured surfaces
• No vacuum holes — suited for solid platen use without dust extraction ports
• Pack of 100 discs per package for high-volume production use
• 3M Series 241D construction

Compatibility

Compatible with bench-top motors and random orbital sanders equipped with 5 inch PSA (adhesive) platens. No vacuum holes are present, so these discs are intended for solid backing pads only.

Installation Notes

PSA discs are installed by peeling the liner from the adhesive backing and pressing firmly onto a clean, dry platen surface — ensure the platen is free of debris or residual adhesive before mounting. Power down or disconnect the sander or bench motor before changing discs. Discs should be seated flat with no air pockets to prevent premature edge lifting during use. Dispose of spent discs per shop waste procedures; aluminum oxide abrasive dust may require respiratory protection per applicable OSHA guidelines.