3M Paper Sheet 405U, 4-1/2 in x 5-1/2 in 220 A-weight, 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, the 405U model is perfect for shops needing handy sheet abrasives. Its flexible backing adapts well to contours, making it a staple for many finishing projects.

Precise 4-1/2 Inch Size

Each sheet measures 4-1/2 inches by 5-1/2 inches, providing a convenient size for hand sanding and fitting onto blocks or power sanders. This size balances ease of use with sufficient coverage for detailed work.

The compact dimensions make it easy to cut and shape the sheets for specific tasks, whether contour sanding or surface leveling, enhancing control and efficiency.

Effective 220 A-weight Grade

The 220 A-weight grade offers a fine abrasive level suitable for multi-step finishing processes. This grade is ideal for achieving smooth surfaces on wood, metal, and other materials.

Its light paper backing supports conformability while maintaining durability, making it excellent for blending, prepping before staining, and scuff sanding between coatings.

Convenient 400 Sheet Carton

Each carton contains 400 sheets, providing ample supply for extended projects or busy workshops. This pack size ensures you have enough material for consistent sanding without frequent reordering.

The large quantity supports both professional and hobbyist needs, making it practical for general purpose sanding across various surfaces like drywall, fiberglass, and ceramic.

Versatile Format Technologies

The 3M Paper Sheet 405U features an open coat construction and load-resistant coating that minimize loading and extend abrasive life. These format technologies help maintain a better finish throughout use.

Silicon carbide mineral delivers exceptional cutting and finishing on multiple materials, including wood, metal, plastic, and glass, making this sheet a versatile tool for many applications.