3M 7010029927 Psa Disc 5 Inch 100 Grit Aluminum Oxide

Product Description

The 3M 7010029927 is a pressure-sensitive adhesive (PSA) abrasive disc designed for power sanding applications in metalworking, woodworking, and surface preparation trades. The disc measures 5 inches in diameter and uses 100-grit aluminum oxide abrasive on a gold-colored, flexible C-weight paper backing. The PSA mount allows fast, clean attachment to compatible backup pads without mechanical fasteners. At 100 grit, the disc delivers fine-grade material removal and surface finishing suitable for smoothing welds, preparing metal surfaces, or refining wood grain before final finishing. Installers and fabricators in mechanical, construction, and finishing trades are the primary users.

This disc is suited for stationary and portable disc sanders equipped with PSA backup pads. The flexible C-weight paper backing conforms to slightly contoured surfaces, making it practical for both flat stock and mildly irregular workpieces. The gold aluminum oxide abrasive is a standard choice for ferrous and non-ferrous metals as well as hardwoods. The 147 vacuum holes in the disc support dust extraction when used with a compatible dust-collection backup pad, keeping the work surface cleaner and extending disc life.

Key Features

• 5-inch diameter PSA disc for fast tool-free attachment to compatible backup pads
• 100-grit aluminum oxide abrasive rated at fine grade for surface finishing and light stock removal
• Flexible C-weight paper backing conforms to slightly uneven or contoured workpiece surfaces
• 147 vacuum holes support dust extraction with compatible dust-collection backup pads
• Gold disc color for easy grit identification in a multi-grit workflow
• Part of the 3M 236U series abrasive disc line

Compatibility

Designed for use with 5-inch PSA backup pads on random orbital sanders, disc sanders, and angle grinder disc pads equipped with a PSA interface. Vacuum-hole pattern supports dust extraction when matched to a compatible 147-hole or open-pattern backup pad.

Installation Notes

Ensure the backup pad surface is clean and free of adhesive residue before applying the disc. Press the disc firmly and evenly onto the backup pad to ensure full PSA contact across the entire face. Disconnect the sander from power before changing discs. Follow applicable workplace safety guidelines for abrasive tools, including eye protection and dust management per OSHA standards.