3M Paper Sheet 405U, 180 A-weight, 4-1/2 in x 5-1/2 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 is a reliable choice for sanding needs. This silicon carbide sheet is built on a light A-weight paper backing, offering excellent conformability for various surfaces. Its design ensures a smooth finish, making it a staple in many workshops.

With a pack size of 400 sheets per carton and 4000 sheets per case, this product supports large projects and frequent use. The 3M brand guarantees quality and consistency in every sheet, ensuring dependable performance.

Precise 180 A-weight Backing

The 180 A-weight paper backing provides the perfect balance of flexibility and durability. This light backing conforms easily to contours and crevices, allowing for detailed sanding on complex shapes without tearing or losing effectiveness.

Its adaptability makes it suitable for use with hand pad blocks, inline sanders, and power sanders. This versatility supports a wide range of applications, from surface leveling to scuff sanding between coatings.

Ideal 4-1/2 Inch Size

Measuring 4-1/2 inches by 5-1/2 inches, these sheets fit comfortably in hand and are easy to cut to size. This dimension is perfect for both manual and machine sanding tasks, providing control and precision during use.

The size also makes it convenient for contour sanding and finishing work, ensuring that users can handle detailed projects efficiently. The sheets’ dimensions support both general sanding and specialized finishing processes.

Effective Silicon Carbide Abrasive

Silicon carbide is known for its sharpness and ability to deliver exceptional finishes. This abrasive mineral is ideal for general purpose sanding on wood, metal, plastic, drywall, fiberglass, glass, and ceramic surfaces.

The open coat construction combined with a load-resistant coating minimizes loading, extending the abrasive life and maintaining a consistent finish. This makes the 405U sheets suitable for multi-step finishing processes.

Convenient 400 Sheets Carton

Each carton contains 400 sheets, providing ample supply for ongoing projects. This pack size supports both professional and hobbyist users who require a steady stock of sanding sheets for various tasks.

The large quantity per carton and case (4000 sheets) ensures cost-effectiveness and reduces the need for frequent reordering. It’s a practical choice for workshops that rely on consistent abrasive materials.