3M 7100041214 Psa Disc 8 Inch 80 Grit Aluminum Oxide

Product Description

The 3M 7100041214 is a pressure-sensitive adhesive (PSA) abrasive disc designed for material removal and surface preparation tasks in shop and field environments. Built on an X-weight cloth backing, this disc delivers the rigidity needed for aggressive stock removal while maintaining enough flexibility to conform to mild contours. The abrasive material is aluminum oxide at 80 grit, placing it in the medium grade range — well suited for blending welds, leveling surfaces, and removing rust or old coatings. The disc measures 8 inches in diameter and does not include vacuum holes. Licensed tradespeople and skilled metalworkers are the primary installers and users.

This disc is intended for use on bench-top motors and random orbital sanders equipped with a PSA-compatible backing pad. It is commonly used in metal fabrication shops, automotive body work, woodworking operations, and general industrial surface prep. The flexible cloth construction makes it suitable for both flat and slightly contoured workpieces. The 348D series designation identifies it within 3Ms line of cloth-backed coated abrasives. Package quantity is one disc per unit.

Key Features

• 80 grit aluminum oxide abrasive for medium-grade stock removal and surface blending
• X-weight cloth backing provides durability and resistance to tearing under load
• Pressure-sensitive adhesive (PSA) mount for fast disc changes on compatible backing pads
• Flexible construction allows use on contoured and flat workpiece surfaces
• No vacuum holes — suited for solid backing pad configurations
• Compatible with bench-top motors and random orbital sanders

Compatibility

Designed for use with bench-top motors and random orbital sanders equipped with PSA-compatible 8-inch backing pads. No specific model numbers are stated by the manufacturer for this listing.

Installation Notes

Installation requires a PSA-compatible backing pad sized to 8 inches. Ensure the sander or bench motor is fully powered off and unplugged before mounting or removing the disc. Press the disc firmly and evenly onto the backing pad to ensure full adhesive contact and prevent edge lifting during operation. Discard discs that show tearing, loading, or loss of abrasive — do not attempt to reattach a partially separated PSA disc.