3M 7100028390 Surface Conditioning Disc 5 Inch Non-woven

Product Description

The 3M 7100028390 is a non-woven surface conditioning disc engineered for cleaning, blending, deburring, and finishing on metal, composite, plastic, and other materials. At 5 inches in diameter, it mounts to right-angle tools via a hook-and-loop attachment system, allowing fast changeover during multi-step finishing operations. The open-web, non-woven fiber construction runs cool under load and resists loading, which extends working life. The disc conforms to irregular and contoured surfaces without undercutting or damaging the base material, making it a reliable first step in surface prep workflows. Installed by fabricators, HVAC sheet metal technicians, plumbers, and general trade professionals.

This disc is suited for light surface conditioning tasks on a range of substrates including metals, composites, and plastics. Its conformable construction makes it particularly effective on curved, irregular, or contoured workpieces where rigid abrasives would leave uneven results. The hook-and-loop backing allows quick disc swaps when moving between grades or steps in a finishing sequence, reducing downtime during production or service work. Typical applications include weld blending, surface prep before coating, and deburring cut edges on sheet metal or pipe.

Key Features

• 5 inch diameter non-woven disc fits standard right-angle tools
• Hook-and-loop attachment enables fast disc changes in multi-step finishing processes
• Open-web construction runs cool and resists loading for extended use
• Conforms to irregular and contoured surfaces without undercutting the base material
• Suitable for metal, composite, plastic, and other materials
• Aluminum oxide (AO) abrasive mineral for general-purpose surface conditioning

Compatibility

Designed for use with right-angle grinders and sanders equipped with a 5 inch hook-and-loop backup pad. Compatible with a range of substrates including ferrous metals, non-ferrous metals, composites, and plastics.

Installation Notes

Verify the backup pad diameter and attachment type match the disc before mounting. Ensure the tool is powered off and disconnected from its power source before changing discs. Follow the tool manufacturer's maximum RPM rating and confirm the disc's rated speed meets or exceeds that value before operation. Wear appropriate PPE including eye protection and gloves during disc installation and use.

Technical Specifications

• Diameter: 5 inches
• Attachment Type: Hook and Loop
• Disc Type: Non-Woven Surface Conditioning
• Abrasive Mineral: Aluminum Oxide (AO)
• Angle Type: Right Angle
• Weight: 0.03 pounds
• UOM: Each
• UPC: 00048011186184

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100028390