3M Company 918DC-NA Medium Flexible Sanding Sponge

Product Description

The 3M COMPANY 918DC-NA is a medium-grit flexible sanding sponge designed for contour and surface finishing work. The Contour Softback construction uses a 5mm foam backing that conforms to curved and irregular surfaces, keeping abrasive contact consistent across the workpiece. Measuring 4.5 inches x 5.5 inches x 0.1875 inches, the sponge features abrasive on one side and is built to be washed and reused across multiple jobs. Tradespeople and finishing contractors reach for this sponge when flat-sheet sandpaper won't conform to the surface geometry they're working with.

This sanding sponge is suited for finish prep, drywall feathering, woodworking contours, and light material removal on curved substrates. The medium grit makes it appropriate for smoothing between coats or scuffing surfaces before paint or primer application. Sold in a package of 24 units, it is practical for job-site stocking or shop use where multiple technicians need access to consistent abrasive supplies.

Key Features

• Contour Softback 5mm foam core conforms to curved and irregular surfaces
• Medium grit abrasive on one side for controlled material removal
• Washable and reusable construction reduces consumable waste on extended projects
• Compact 4.5 x 5.5 x 0.1875 inch format fits standard hand-sanding grip
• Sold as individual units within a 24-count package quantity

Compatibility

Designed as a general-purpose flexible sanding sponge for hand-sanding applications on contoured, curved, or flat surfaces where a conformable abrasive is required.

Installation Notes

No power tools or mechanical fastening required. Rinse the sponge with clean water after each use and allow it to dry fully before storing to maintain abrasive effectiveness and sponge integrity. Wear appropriate respiratory protection when sanding materials that generate fine dust. Follow applicable safety data sheet guidance for the substrate material being worked.

Technical Specifications

• Grit Grade: Medium
• Abrasive Sides: 1
• Backing Type: Contour Softback 5mm foam
• Length: 5.5 inches
• Width: 4.5 inches
• Thickness: 0.1875 inches
• Weight: 1.44 pounds
• Package Quantity: 24 EA
• Reusable: Yes, washable

Standard Information

• Brand: 3M COMPANY
• Manufacturer Part Number: 918DC-NA