3M 7100138331 Non-woven Hook and Loop Disc 5 Inch Medium

Product Description

The 3M 7100138331 is a non-woven hook and loop abrasive disc designed for fine finishing, paint preparation, and scratch blending on a wide range of surfaces. Built with an aluminum oxide abrasive mineral in a medium grit, this 5-inch disc uses a three-dimensional non-woven fiber structure that delivers consistent cut and finish throughout the life of the disc. It is engineered for use with compatible hook and loop random orbital and angle head tools, making it a practical choice for body shop technicians, fabricators, and finishing specialists who need reliable disc changes during multi-step finishing workflows.

This disc is suited for conditioning and finishing aluminum, stainless steel, plastics, wood, and fiberglass. Its open non-woven construction resists loading and heat buildup, which extends working time and maintains cutting action across extended use. Typical applications include scuffing primer, blending scratches, prepping bare metal, and achieving a uniform surface before topcoat or clear coat application. The disc conforms well to contoured and irregular surfaces, reducing the risk of undercutting or damaging the base material.

Key Features

• Aluminum oxide abrasive mineral provides high cut rate across metal, plastic, wood, and composite surfaces
• Hook and loop quick-change attachment allows fast disc swap during multi-step finishing processes
• Non-woven 3D fiber structure maintains consistent finish and resists premature breakdown
• Load and heat resistance supports prolonged operation without glazing or loss of cut
• Conforms to irregular and contoured surfaces for a clean, consistent finish without undercutting
• 5-inch diameter fits standard hook and loop random orbital and finishing tools

Compatibility

Designed for use with 5-inch hook and loop abrasive finishing tools commonly used in metal fabrication, auto body, and surface prep applications.

Installation Notes

Installation and disc changes should be performed with the tool powered off and disconnected from its power source. Align the disc squarely to the hook and loop backing pad before applying pressure to seat the attachment. Licensed tradespeople and experienced finishing technicians should follow applicable workplace safety guidelines for abrasive tool operation, including use of appropriate eye and respiratory protection.

Technical Specifications

• Diameter: 5 inches
• Abrasive Material: Aluminum Oxide
• Grade: Medium
• Construction: Non-Woven
• Attachment Type: Hook and Loop
• Weight: 0.03 pounds
• UOM: Each
• UPC: 00048011330785

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100138331