3M Paper Sheet 405U, 280 A-weight, 9 in x 11 in, 100/Carton, 1000 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 mineral. This model is designed to deliver exceptional finishes thanks to its fast cutting capabilities and load-resistant coating.

Built on a light A-weight paper backing, the sheet provides excellent conformability. Its 9 in x 11 in size makes it easy to handle for various sanding tasks.

Precise 280 A-weight Backing

The 280 A-weight paper backing is lightweight yet durable, allowing the sheet to conform well to contours and crevices. This flexibility is essential for detailed sanding work on complex surfaces.

Because of this backing, the sheets can be easily cut to fit hand pad blocks or power sanders, making them versatile for different sanding tools and applications.

Optimal 9 Inch Dimensions

Measuring 9 in x 11 in, these sheets offer a practical size for both hand sanding and machine use. The dimensions balance coverage and manageability for efficient sanding.

This size fits well for general sanding, finishing, blending, and surface prep, making it suitable for a wide range of materials including wood, metal, and fiberglass.

Convenient 100 Sheet Format

Each carton contains 100 sheets, providing ample supply for ongoing projects. This pack size supports continuous work without frequent reordering.

For larger needs, the case includes 1000 sheets, ensuring availability for extended use in workshops or production environments.

Versatile Silicon Carbide Abrasive

Silicon carbide is ideal for general purpose sanding on wood, metal, plastic, drywall, fiberglass, glass, and ceramic. Its sharp mineral structure creates a smoother finish compared to aluminum oxide.

The open coat construction and load-resistant coating reduce loading and extend abrasive life, making these sheets effective for multi-step finishing processes.