3M Paper Sheet 405U, 5-1/2 in x 9 in, 500A A-weight, 2000 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 is designed for quality and reliability. This silicon carbide sheet features a light A-weight paper backing that offers excellent conformability for various sanding tasks.

Its flexible backing allows it to adapt to contours and crevices, making it a versatile choice for finishing work. The 405U model stands out for its balance of durability and smooth finish.

Precise 5-1/2 Inch Size

Measuring 5-1/2 inches by 9 inches, this sheet size fits well with hand pad blocks and power sanders. The dimensions make it easy to cut and customize for specific sanding needs.

This size is ideal for detailed work on wood, metal, plastic, drywall, and more. Its format supports both general sanding and fine finishing tasks efficiently.

Reliable 500A A-weight Backing

The 500A A-weight paper backing is light yet strong, providing excellent conformability without sacrificing durability. This backing helps the sheet conform smoothly to contours and corners.

Its load-resistant coating and open coat construction reduce clogging, extending the abrasive life. This makes the 405U sheet suitable for multi-step finishing processes.

Effective Silicon Carbide Abrasive

Silicon carbide is the abrasive mineral used in the 405U sheets, known for sharpness and fast cutting. It delivers exceptional finishes on a variety of materials including wood, metal, and ceramic.

This abrasive excels in contour sanding and final finishing, producing a smoother surface than aluminum oxide. It’s perfect for blending, surface leveling, and scuff sanding between coatings.

Convenient 2000 Sheets Case

Each case contains 2000 sheets, providing a large supply for continuous use. This pack size supports professional shops and projects requiring frequent abrasive replacement.

The bulk packaging ensures you have enough sheets for extensive sanding jobs, making it a cost-effective and practical choice for finishing and prep work.