3M Paper Sheet 405U, 3 2/3 in x 9 in 280 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 is a reliable choice for sanding needs. This silicon carbide sheet is built on a light A-weight paper backing, offering excellent conformability. Its design ensures you get exceptional finishes every time you use it.

Ideal for various surfaces, this model is perfect for contour sanding and general purpose use. The 3 2/3 in x 9 in size fits well for hand sanding or power tools, making it versatile for many projects.

Precise 280 A-weight Grade

The 280 A-weight grade of this 3M sheet balances durability and smoothness. It’s designed to create a finer finish compared to aluminum oxide abrasives, making it suitable for multi-step finishing processes.

This grade works well on wood, metal, plastic, drywall, and more. Its sharp silicon carbide mineral ensures effective sanding while maintaining a superior finish quality.

Optimal Size And Format

Measuring 3 2/3 inches by 9 inches, these sheets are easy to handle and cut to fit various sanding tools. The sheet format allows for flexible use, whether you’re working with hand pads or power sanders.

This size is practical for detailed work and larger surface areas alike. It’s especially useful for contour blending and finishing tasks that require precision and adaptability.

Efficient 400 Sheets Carton

Each carton contains 400 sheets, providing a large supply for ongoing projects. This pack size ensures you have enough material for extensive sanding jobs without frequent reordering.

The 400 sheets per carton format suits workshops and professionals who need consistent access to quality abrasives. It’s a cost-effective way to stock up on essential sanding sheets.

Durable Load-Resistant Coating

The 3M Paper Sheet 405U features a load-resistant coating and open coat construction. These technologies reduce clogging and extend the abrasive life, helping you maintain a smooth finish longer.

This coating is especially helpful when sanding materials like fiberglass, glass, and ceramic. It keeps the sheets performing well across different surfaces and applications.