3M 7100216685 Sanding Sheet 320 Grit 2.75 in X 45 Yd

Product Description

The 3M 7100216685 is an adhesive-back sanding sheet roll designed for fine finishing work across a range of surfaces. It uses a ceramic aluminum oxide abrasive at 320 grit, making it well-suited for light material removal, surface prep between coats, and final-stage smoothing. The sheet stock measures 2.75 inches wide and runs 45 yards long, allowing users to cut custom lengths for orbital, inline, or hand-block sanding applications. A C-weight paper backing provides moderate stiffness and flexibility, supporting consistent contact across flat and mildly contoured workpieces. The pressure-sensitive adhesive backing bonds directly to compatible pad surfaces without clips or clamps.

This sanding sheet roll is used in woodworking shops, metal fabrication, automotive refinishing, and general surface preparation environments. The 320-grit ceramic aluminum oxide construction handles finish sanding on wood, painted surfaces, primers, and light metals. It is commonly used by finish carpenters, cabinet makers, auto body technicians, and maintenance trades who require consistent stock removal at fine grit levels. The roll format allows cut-to-length flexibility, reducing waste compared to pre-cut sheet formats.

Key Features

• 320-grit ceramic aluminum oxide abrasive for fine surface finishing and between-coat prep
• Adhesive backing bonds directly to compatible sanding pads without mechanical fasteners
• C-weight paper backing offers a balance of stiffness and conformability
• Roll format: 2.75 inches wide by 45 yards long for cut-to-length use
• Blue sheet color for easy grit identification in the work environment

Compatibility

Designed for use with adhesive-back compatible sanding pads and blocks requiring a 2.75-inch wide abrasive sheet strip.

Installation Notes

Cut the roll to the required length using a straightedge and utility knife before applying to the sanding pad. Ensure the pad surface is clean and free of dust or residue before pressing the adhesive side down for a secure bond. Remove and replace the sheet when abrasive performance degrades to maintain consistent finish quality. This product is intended for dry sanding applications unless otherwise verified for wet use.