3M 7100021755 Scotch-brite Roloc Coating Removal Disc 4 Inch

Product Description

The 3M 7100021755 is a non-woven coating removal disc designed for stripping paint, rust, and scale from metal surfaces and welds. Built on a conformable open-web construction and loaded with extra coarse silicon carbide abrasive, the disc cuts aggressively without gouging or undercutting the base material. At 4 inches in diameter and rated to 11,000 RPM, it fits standard right-angle grinders and die grinders. The hook and loop Roloc-style attachment allows fast disc swaps during multi-step finishing work. Weighing just 0.13 pounds, it is light enough for extended overhead or detail work.

This disc is used in metal fabrication, welding prep, and surface restoration applications where coating removal must be fast but controlled. Common install scenarios include cleaning weld seams and discoloration, removing mill scale before painting or coating, and stripping rust from structural steel, pipe, and sheet metal. The open-web material resists loading and runs cool, making it suitable for prolonged use on hard metal surfaces where wire brushes tend to leave embedded wire fragments or cause base-material damage.

Key Features

• Extra coarse silicon carbide abrasive removes paint, rust, and weld scale efficiently
• Non-woven conformable construction removes coatings without gouging or undercutting base material
• Open-web material runs cool and resists loading for extended service life
• Hook and loop attachment provides fast disc change-out for multi-step finishing
• Rated to 11,000 RPM for use with standard right-angle and die grinders
• Outperforms wire brushes by eliminating embedded wire contamination risk

Compatibility

Designed for use with hook and loop Roloc-compatible right-angle grinders and die grinders accepting 4-inch non-woven discs. Suited for metal fabrication, weld prep, and coating removal on hard metal surfaces.

Installation Notes

Installation and use of abrasive discs on power tools should be performed by qualified tradespeople familiar with grinder safety practices. Always power down and disconnect the tool before mounting or removing the disc. Verify the tool spindle speed does not exceed the 11,000 RPM disc rating before operation. Wear appropriate PPE including eye protection and gloves during surface preparation work.

Technical Specifications

• Diameter: 4 inches
• Maximum Speed: 11,000 RPM
• Abrasive Material: Silicon Carbide
• Construction: Non-Woven Open Web
• Attachment Type: Hook and Loop
• Weight: 0.13 pounds
• UPC: 00048011184708

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100021755