Norton 636425-06139 Psa Back-up Pad 5 in Medium Tapered

Product Description

The NORTON 636425-06139 is a 5-inch PSA (pressure-sensitive adhesive) back-up pad designed for use with dual-action and random orbital sanders. Type X medium tapered construction provides a flexible interface between the sander and the abrasive disc, helping maintain consistent surface contact across the work area. This pad accepts 120-grit PSA abrasive discs and is sold individually. It is a standard consumable component used by trades and surface preparation professionals who rely on pneumatic or electric random orbital equipment.

This back-up pad is suited for surface prep work in HVAC equipment fabrication, metal finishing, fiberglass, composite panels, and general construction applications. The medium taper profile distributes sanding pressure evenly, reducing edge gouging on flat and slightly contoured surfaces. Technicians and finishers working with dual-action sanders will find this pad compatible with standard 5-inch PSA disc formats commonly used in shop and field settings.

Key Features

• 5-inch diameter fits standard dual-action and random orbital sanders
• PSA interface secures abrasive discs without hooks or loops for quick changes
• Medium tapered Type X profile provides even pressure distribution across the disc surface
• 120-grit rating suited for intermediate material removal and surface blending
• Sold as individual units with a minimum order quantity of 5

Compatibility

Designed as an OEM-style replacement back-up pad for 5-inch PSA dual-action and random orbital sanders commonly used in trade and fabrication environments.

Installation Notes

Installation is performed by threading or press-fitting the pad onto the sander spindle per the tool manufacturer's specifications. Power down and disconnect the sander from its air supply or electrical source before changing the pad. Ensure the pad diameter and PSA interface match the abrasive disc format before use. Inspect the pad for wear, delamination, or imbalance before each use session.

Technical Specifications

• Pad Diameter: 5 inches
• Pad Type: PSA Medium Tapered
• Construction Type: X
• Grit: 120
• Compatible Sander Type: Dual-Action / Random Orbital
• Unit of Measure: Each
• Minimum Order Quantity: 5

Standard Information

• Brand: NORTON
• Manufacturer Part Number: 636425-06139