3M 7100140804 Aluminum Oxide Sandpaper Assorted Grit

Product Description

The 3M 7100140804 is an aluminum oxide sandpaper sheet designed for general-purpose material removal and surface preparation on paint, wood, and metal. Sold as a pack with assorted grit options, these sheets measure 9 inches by 11 inches — a standard size that fits most hand-sanding blocks and is easy to cut down for detail work. Aluminum oxide abrasive is a durable, self-sharpening mineral that holds up through extended sanding sessions, making it a reliable choice for production work and finishing tasks alike. Trade professionals and experienced DIYers use these sheets when consistent scratch patterns and controlled stock removal matter.

These sandpaper sheets are suited for a wide range of residential and light commercial surface prep applications. Common uses include scuff-sanding between paint coats, knocking down raised grain on bare wood, removing light rust or mill scale from metal, and feathering body filler or primer. The assorted grit pack allows a single purchase to cover multiple stages of a sanding sequence without sourcing separate grits individually.

Key Features

• Aluminum oxide abrasive for long-lasting cut and durability across paint, wood, and metal surfaces
• Standard 9 x 11 inch sheet size compatible with most sanding blocks and easy to quarter or third for hand use
• Assorted grit selection covers multiple stages of surface prep in a single pack
• General-purpose backing suitable for dry sanding applications

Compatibility

Designed as a general-purpose sanding sheet for hand-sanding applications on wood, paint, and metal surfaces in residential and light commercial settings.

Installation Notes

No power tools or trade licensing are required for hand-sanding applications. Wear appropriate respiratory protection when sanding painted surfaces, particularly on older substrates that may contain lead-based paint — follow applicable local and EPA regulations before disturbing such surfaces. Fold or cut sheets to fit sanding blocks as needed, and replace sheets when abrasive loading or glazing reduces cutting efficiency.

Technical Specifications

• Sheet Dimensions: 9 x 11 inches
• Abrasive Material: Aluminum Oxide
• Grit: Assorted
• Package Weight: 0.28 pounds
• Unit of Measure: Pack
• Minimum Order Quantity: 10
• UPC: 00051144090051

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100140804