Norton 66261140508 Psa Disc 180 Grit Ceramic 6 in 100 Pack

Product Description

The NORTON 66261140508 is a pressure-sensitive adhesive (PSA) abrasive disc designed for material removal and surface finishing on a wide range of workpieces. This disc measures 6 inches in diameter and carries a 180 grit rating, placing it in the very fine grade range. The abrasive material is ceramic, which delivers consistent cut rates and extended disc life compared to aluminum oxide alternatives. A B-weight paper backing provides a balance of flexibility and support, making it suitable for both flat and mildly contoured surfaces. Each package contains 100 discs. The PSA mount system allows for fast disc changes on compatible backup pads without mechanical fasteners.

This disc is used in metal fabrication shops, woodworking operations, and general industrial finishing applications. The 180 grit ceramic construction makes it appropriate for finish passes on ferrous and non-ferrous metals, hardwoods, and composites where a smooth, consistent surface profile is required before coating or final inspection. It belongs to the Norton A975 series and is suited for use on random orbital and straight-line sanders equipped with PSA backup pads. No vacuum holes are included, so it is intended for use on non-vacuum or solid-face backup pads.

Key Features

• Ceramic abrasive grain for consistent cut and long disc life
• 180 grit very fine grade for finish-stage material removal and surface prep
• B-weight paper backing balances flexibility with structural support
• PSA (pressure-sensitive adhesive) mount for tool-free disc changes
• No vacuum holes — compatible with solid-face backup pads
• 100 discs per package for high-volume production use

Compatibility

Designed for use with PSA backup pads accepting 6-inch abrasive discs on random orbital and straight-line sanding equipment. No vacuum-hole configuration means this disc is intended for solid-face backup pads only.

Installation Notes

Ensure the backup pad surface is clean and free of adhesive residue before applying each disc, as contamination reduces PSA bond strength. Power down and disconnect the sander from its power source before changing discs. Apply firm, even hand pressure across the full disc face when seating the PSA mount to prevent edge lifting during use. Dispose of worn discs before the abrasive layer is fully depleted to avoid backing contact with the workpiece.