Norton 66261136723 Psa Disc 18 in 80 Grit Aluminum Oxide

Product Description

The NORTON 66261136723 is an 18-inch pressure-sensitive adhesive (PSA) abrasive disc designed for high-material-removal grinding and surface preparation applications. Built on an X-weight cloth backing, the disc delivers the rigidity and durability needed for aggressive stock removal on metal, wood, and composite surfaces. The abrasive grain is aluminum oxide at 80 grit, a medium-grade cut suited to blending welds, leveling surfaces, and removing mill scale or old coatings. The flexible construction allows the disc to conform slightly to irregular work surfaces without sacrificing cutting speed. At 0.3 pounds, it is lightweight and easy to handle during disc changes.

This disc is intended for use on large-format PSA-compatible disc sanders and floor grinding equipment found in metal fabrication shops, woodworking facilities, and industrial maintenance environments. The 18-inch diameter makes it a fit for heavy-duty stationary or semi-portable grinders used in production or floor-preparation workflows. It is installed and serviced by metalworkers, fabricators, millwrights, and finishing trades professionals. The R228 series designation identifies its position within the NORTON coated abrasives line.

Key Features

• 18-inch diameter PSA mounting — adheres directly to compatible foam or steel backup pads without fasteners
• 80-grit aluminum oxide grain provides medium-grade cutting action for stock removal and surface blending
• X-weight cloth backing resists tearing under aggressive pressure and lateral stress
• Flexible construction allows conforming contact on slightly contoured or uneven surfaces
• No vacuum holes — suited for solid backup pads on non-dust-extraction setups
• Brown disc color consistent with NORTON R228 series coated abrasive products

Compatibility

Designed for use with PSA-style backup pads on large-format disc sanders and grinders that accept 18-inch abrasive discs. No specific equipment model compatibility was provided in the product data.

Installation Notes

Installation is performed by pressing the PSA-coated face firmly onto a clean, dry backup pad free of debris or residual adhesive. Ensure the sander or grinder is powered off and disconnected from its power source before changing discs. Confirm the backup pad diameter matches the disc diameter to prevent uneven wear or edge lifting during operation. Worn or contaminated backup pad surfaces reduce adhesion and should be cleaned or replaced before mounting a new disc.