3M Paper Sheet 405U, 220 A-weight, 2 11/16 in x 9 in, 400/Carton, 4000 ea/Case

• Fast cutting silicon carbide delivers exceptional finishes
• Great for contour sanding
• Light A-weight paper backing has excellent conformability
• Load-resistant coating and open coat construction minimize loading for better finish and longer abrasive life
• Silicon carbide is ideal for general purpose sanding on wood, metal, plastic, dry wall, fiberglass, glass and ceramic

3M Paper Sheet 405U is a silicon carbide sheet constructed on an A-weight, light paper backing. It features a load-resistant coating and open coat construction.

Extra Fine and Indispensable
Few shops can do without abrasives in handy sheet form, and our 3M™ Paper Sheet 405U is built to be indispensable. A flexible A-weight paper backing provides excellent conformability and silicon carbide abrasive mineral delivers exceptional finishes.

Our silicon carbide abrasive sheets create a smoother finish than aluminum oxide products on most substrates. While it breaks down faster than aluminum oxide, it produces a superior finish. A resin bond construction provides superior grain retention while the open coat construction, along with the load-resistant coating, combine to provide excellent anti-loading characteristics.

These versatile sanding sheets contain the ideal abrasive grain type and grades for multi-step finishing processes.

Paper Backing for Conformability to Contours
The light A-weight backing provides conformability over contours and into crevices and corners. The sheet can also be easily cut to fit a hand pad block, inline sander, or finishing or power sanders. Other applications include general sanding, finishing, blending, surface leveling, prep prior to staining/painting and scuff sanding between coatings.

Recommended Applications
Silicon carbide is a synthetic mineral that is very sharp and commonly used for final finishing in white wood sanding.

It is ideal for general purpose sanding on wood, metal, plastic, dry wall, fiberglass, glass and ceramic materials as well as contour blending.

Trusted 3M Paper Sheet

The 3M Paper Sheet 405U offers reliable quality with its silicon carbide abrasive on a light A-weight paper backing. This combination ensures excellent conformability and smooth finishes for various sanding tasks.

Designed for versatility, this model 405U sheet is part of 3M’s trusted lineup, providing consistent performance in a handy sheet format measuring 2 11/16 in x 9 in for easy handling.

Precise Grade And Weight

Featuring a 220 A-weight grade, these sheets balance durability and flexibility, making them ideal for contour sanding and detailed surface work. The A-weight backing supports excellent conformability over curves and edges.

This grade is perfect for multi-step finishing processes, helping achieve a fine finish on wood, metal, and other materials while maintaining the sheet’s integrity during use.

Optimal Sheet Dimensions

Each sheet measures 2 11/16 inches by 9 inches, providing a practical size that fits hand pads, inline sanders, and power sanders. This size allows for easy cutting and shaping to suit specific sanding needs.

The dimensions make these sheets convenient for detailed work in corners and crevices, enhancing their usefulness in finishing, blending, and surface leveling tasks.

Convenient Format And Pack

Supplied in a carton of 400 sheets, with 4000 sheets per case, this pack size supports both small shops and larger operations. The bulk packaging ensures you have plenty of sheets ready for ongoing projects.

This format helps reduce downtime by keeping a steady supply on hand, making it easier to maintain workflow without frequent reordering or interruptions.

Durable Abrasive Technology

The silicon carbide abrasive offers fast cutting and exceptional finishes, ideal for general sanding on wood, metal, plastic, drywall, fiberglass, glass, and ceramic. Its load-resistant coating and open coat construction minimize loading.

This technology extends abrasive life and improves finish quality, making the 3M Paper Sheet 405U a versatile choice for many sanding applications requiring precision and durability.