3M 7100078003 Psa Disc 80 Grit Ceramic 5 Inches 100 Pack

Product Description

The 3M 7100078003 is a pressure-sensitive adhesive (PSA) abrasive disc designed for material removal and surface preparation tasks. Built with a ceramic aluminum oxide abrasive, this disc delivers consistent cut rate and durability on metal, wood, and composite surfaces. It features an F-weight paper backing, which provides a balance of flexibility and support suited to contoured and flat workpieces. At 80 grit, it falls in the medium grade range, making it effective for stock removal, blending, and scratch refinement. This disc is installed by metal fabricators, woodworkers, automotive technicians, and maintenance tradespeople using random orbital sanders.

This disc is intended for use with random orbital sanders in both shop and field applications. The pressure-sensitive adhesive backing allows for fast disc changes directly onto PSA-compatible backing pads without the need for hook-and-loop hardware. The flexible paper construction conforms to moderate surface contours. Each package contains 100 discs, making it appropriate for production environments or contractors managing high-volume sanding operations. The disc measures 5 inches in diameter and does not include vacuum holes.

Key Features

• Ceramic aluminum oxide abrasive for extended cut life and consistent performance
• 80 grit medium grade suited for stock removal and surface blending
• F-weight paper backing balances flexibility with structural support
• Pressure-sensitive adhesive backing for quick mounting on PSA sanding pads
• No vacuum holes — compatible with solid PSA backing pads
• 100 discs per package for production and high-volume use

Compatibility

Designed for use with random orbital sanders equipped with 5-inch PSA (pressure-sensitive adhesive) backing pads. No vacuum hole pattern — verify backing pad type before installation.

Installation Notes

Disconnect or power down the sander before changing discs. Align the disc flat against the PSA backing pad and press firmly from the center outward to ensure full adhesion and prevent edge lifting during use. Worn or contaminated backing pads reduce disc adhesion and should be replaced before installing a new disc. Follow applicable workplace safety standards for eye and respiratory protection when performing abrasive operations.