3M 7100041320 Abrasive Sheet 220 Grit 9x11 in Silicon Carbide

Product Description

The 3M 7100041320 is a coated abrasive sheet from the 405U series, designed for hand sanding and light machine sanding applications. It uses silicon carbide as the abrasive material, bonded to an A-weight paper backing in an open coat configuration. The 220 grit rating places it in the Very Fine grade category, making it well suited for finish sanding, between-coat scuffing, and surface prep work on wood, metal, paint, and composites. Each sheet measures 9 inches wide by 11 inches long, fitting standard hand sanding blocks and quarter-sheet pad sanders. This product is used by finish carpenters, auto body technicians, painters, and general contractors.

The 405U abrasive sheet is a general-purpose sheet used across a wide range of finishing tasks. Common applications include final sanding before staining or painting, smoothing primer coats, light rust removal on metal surfaces, and surface conditioning on plastics and composites. The open coat design reduces loading, helping the sheet resist clogging when working softer materials such as wood, painted surfaces, or body filler. It is suitable for both residential and light commercial work environments.

Key Features

• Silicon carbide abrasive material for consistent cutting on hard and soft surfaces
• 220 grit Very Fine grade for finish sanding and between-coat prep
• Open coat construction reduces loading and extends sheet life
• A-weight paper backing provides flexibility for contour sanding
• Standard 9 inches x 11 inches sheet size fits common hand blocks and pad sanders
• Available in case quantities of 1000 sheets for high-volume use

Compatibility

Designed as a standard 9 inch by 11 inch abrasive sheet compatible with hand sanding blocks, quarter-sheet finish sanders, and applications requiring a full sheet cut to size.

Installation Notes

Cut or tear sheets to the required size before mounting to a sanding block or pad sander. Ensure the work surface is clean and free of loose debris before sanding to avoid deep scratching. When used on painted or primed surfaces, wipe the surface clean between grits to prevent contamination. Dispose of used abrasive sheets in accordance with local regulations if sanding lead-based paint or hazardous coatings.

Technical Specifications

• Series: 405U
• Abrasive Type: Coated
• Abrasive Material: Silicon Carbide
• Grit: 220
• Grade: Very Fine
• Coat Type: Open Coat
• Overall Width: 9 inches
• Overall Length: 11 inches
• Backing Material: Paper
• Backing Weight: A
• Package Quantity: 100 per inner, 1000 per case

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100041320