Norton 662611-31613 Sanding Disc 8in A275 P180B

Product Description

The NORTON 662611-31613 is a pressure-sensitive adhesive (PSA) sanding disc designed for flat and orbital disc sanders used in surface preparation and finishing applications. Built to the A275 specification, this disc uses a P180B grit designation, placing it in the fine-grit range suitable for intermediate sanding, seam blending, and pre-finish smoothing on wood, composites, and painted surfaces. At 8 inches in diameter with no center hole, it mounts directly to solid backup pads. Trade professionals in cabinet, millwork, flooring, and general finishing work rely on this format for consistent stock removal at finer grits.

This disc is suited for use with 8-inch PSA backup pads on stationary disc sanders, portable units, and line sanders in both shop and field environments. The no-hole configuration is standard for solid rubber or foam backup pads that do not use through-hole dust extraction. The A275 series is a coated abrasive line engineered for consistent cut rate and extended disc life on wood and light composite materials. These discs are sold individually and typically ordered in quantity lots of 100 units per the supplier unit-of-measure designation.

Key Features

• PSA (stick-on) backing for tool-free mounting to compatible backup pads
• 8-inch diameter with no hole — fits solid backup pads without dust-extraction ports
• P180B grit for fine intermediate sanding and surface preparation before finishing
• A275 coated abrasive construction for consistent cut rate and disc longevity
• Suitable for wood, composites, and painted surface applications

Compatibility

Designed as a PSA-style replacement disc for 8-inch solid backup pads on stationary and portable disc sanders that accept no-hole sanding discs.

Installation Notes

Installation is performed by removing the release liner and pressing the disc firmly onto a clean, dry 8-inch PSA backup pad, starting from the center and working outward to eliminate air pockets. Ensure the sander is powered off and unplugged before changing discs. Remove any adhesive residue from the backup pad before mounting a new disc to ensure full contact and even wear. Discard discs that show loading, glazing, or edge lifting, as these conditions reduce cut efficiency and can cause uneven surface finish.

Technical Specifications

• Diameter: 8 inches
• Hole Configuration: No Hole
• Abrasive Type: A275
• Grit Designation: P180B
• Backing Type: Pressure-Sensitive Adhesive (PSA)
• Unit of Measure: Each
• Minimum Order Quantity: 100

Standard Information

• Brand: NORTON
• Manufacturer Part Number: 662611-31613