Norton 66261138346 Psa Disc 60 Grit Zirconia Alumina 20 in

Product Description

The NORTON 66261138346 is a pressure-sensitive adhesive (PSA) abrasive disc engineered for aggressive material removal on large flat surfaces. Built on a Y-weight cloth backing, this disc handles the flex and load demands of floor sanding, wide-belt machine work, and heavy surface prep. The abrasive grain is zirconia alumina, a self-sharpening material that holds cut rates longer than standard aluminum oxide under high pressure. At 60 grit, it sits in the medium range and is well suited for initial stock removal, leveling, or prepping surfaces before moving to finer grits. The disc mounts via a peel-and-stick PSA adhesive backer, making changeovers fast on compatible disc machines.

This disc is designed for use on large-format disc grinding and sanding machines that accept 20-inch PSA-mount pads. Typical applications include hardwood floor refinishing, concrete surface leveling, metal fabrication prep, and industrial surface conditioning. It is commonly used by flooring contractors, metal fabricators, and industrial maintenance crews who need consistent cut on broad surface areas. The flexible cloth construction conforms slightly under load, reducing gouging risk on semi-irregular surfaces while maintaining aggressive material removal rates.

Key Features

• Zirconia alumina grain self-sharpens under pressure for extended disc life and consistent cut rate
• Y-weight cloth backing withstands high-load sanding applications without delaminating
• Pressure-sensitive adhesive (PSA) mount allows fast, tool-free disc changes on compatible machines
• 60 grit medium grade removes stock efficiently and prepares surfaces for finer finishing stages
• Flexible construction reduces gouging on surfaces with minor variation
• No vacuum holes — suited for solid-pad disc machines without dust extraction ports

Compatibility

Designed for use with large-format disc sanding machines that accept 20-inch PSA adhesive-mount backing pads. Verify pad diameter and PSA mount compatibility on the machine before installation.

Installation Notes

Installation is performed by flooring contractors, metal fabricators, or maintenance technicians operating large-format disc sanders. Power down and unplug the machine before changing discs. Peel the release liner and align the disc squarely to the backing pad, pressing firmly across the full surface to ensure full adhesive contact and prevent edge lift during operation. Inspect the backing pad for wear or contamination before mounting a new disc, as a degraded pad surface reduces adhesive bond strength and can cause disc slippage under load.