3M Paper Sheet 405U, 400 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 is a reliable choice for sanding needs. This silicon carbide sheet is built on a light A-weight paper backing, providing excellent conformability and flexibility for various surfaces.

Its design ensures a smooth finish and durability, making it a staple in many workshops. The 405U model is crafted to deliver consistent results across multiple applications.

Precise 400 A-weight Backing

The 400 A-weight paper backing offers a balance of strength and flexibility. This backing allows the sheet to conform well to contours and edges, improving sanding efficiency on irregular surfaces.

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

Optimal 9 Inch Dimensions

Measuring 9 inches by 11 inches, these sheets provide ample coverage for various sanding tasks. The size is convenient for both hand sanding and machine use, allowing for precise control and reach.

This dimension fits well with common sanding equipment and can be trimmed as needed, ensuring adaptability for detailed or broad surface preparation.

Efficient 100 Sheet Format

Each carton contains 100 sheets, offering a practical quantity for ongoing projects. This pack size supports continuous work without frequent reordering, ideal for busy shops or professional use.

The sheets come in a format that’s easy to store and handle, helping maintain organization and quick access during sanding operations.

Durable Load-Resistant Coating

The load-resistant coating combined with open coat construction minimizes clogging during use. This feature extends the abrasive life and maintains a better finish throughout sanding.

Silicon carbide abrasive is perfect for general sanding on wood, metal, plastic, drywall, fiberglass, glass, and ceramic, making these sheets highly versatile for many materials.