Norton 63642506141 6 in Psa Disc Backing Pad

Product Description

The NORTON 63642506141 is a 6-inch diameter PSA (pressure-sensitive adhesive) disc backing pad designed for use with DA (dual-action) and RO (random-orbital) sanders. Constructed from plastic with a medium-density foam layer, it provides a stable, consistent backing surface that allows PSA-mount abrasive discs to seat and release cleanly. The pad is rated to a maximum of 15,000 RPM, making it suitable for high-speed finishing and material removal tasks in metalworking, woodworking, and auto body applications. It is installed and serviced by tradespeople, fabricators, and surface prep technicians working with pneumatic or electric orbital sanders.

This backing pad fits sanders configured for PSA-style abrasive discs, which use a peel-and-stick adhesive backing rather than hook-and-loop fastening. The 5/16-inch center hole accommodates the mounting spindle on compatible DA and RO sanders. Its medium density strikes a balance between firm disc support and surface conformability, making it well suited for flat and mildly contoured workpieces. The standard grade construction covers everyday sanding, scuffing, and prep work across a range of shop and field environments.

Key Features

• 6-inch pad diameter for use with standard 6-inch PSA abrasive discs
• PSA adhesive mount accepts peel-and-stick abrasive discs for quick changes
• Rated to 15,000 RPM maximum for high-speed DA and RO sander use
• 5/16-inch center hole fits compatible sander spindles
• Medium-density plastic construction balances disc support and surface conformability
• Standard grade for everyday sanding, prep, and finishing tasks

Compatibility

Designed for use with DA and RO sanders that accept a 6-inch PSA-mount abrasive disc and have a 5/16-inch spindle mounting configuration.

Installation Notes

Disconnect or power down the sander before removing or installing the backing pad. Thread the pad onto the sander spindle by hand until fully seated; do not overtighten. When attaching a PSA abrasive disc, align it centered on the pad surface and press firmly to ensure full adhesive contact before operating. Replace the backing pad if the surface shows tears, glazing, or loss of flatness that could affect disc adhesion or finish quality.