3M Paper Sheet 405U, 320 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, offering excellent conformability and flexibility. Its design ensures smooth finishes on various surfaces.

Ideal for shops requiring dependable abrasives, the 405U model delivers consistent results. The 9 in x 11 in size fits many sanding tools, making it versatile for different projects and applications.

Exceptional Fast Cutting

Fast cutting silicon carbide abrasive mineral provides exceptional finishes on wood, metal, plastic, and more. This abrasive breaks down faster than aluminum oxide but leaves a superior finish, perfect for fine sanding tasks.

With a 320 A-weight grade, these sheets are suited for multi-step finishing processes. The abrasive's sharpness helps achieve smooth surfaces efficiently, enhancing overall project quality.

Flexible Paper Backing

The light A-weight paper backing offers excellent conformability to contours and crevices. This makes the 405U sheets easy to use on irregular surfaces and detailed areas, improving sanding precision.

Sheets can be cut to fit hand pad blocks, inline sanders, or power sanders. This adaptability supports various sanding methods, from general sanding to scuff sanding between coatings.

Open Coat Construction Benefits

Load-resistant coating combined with open coat construction minimizes loading during sanding. This reduces clogging and extends the abrasive life, ensuring a better finish over time.

These features make the 3M Paper Sheet 405U ideal for finishing, blending, surface leveling, and prep work before staining or painting. The open coat design keeps the sheet effective longer.

Convenient Size And Pack

Each sheet measures 9 in x 11 in, providing ample surface area for various sanding tasks. The sheets come in a carton of 100, with 1000 sheets per case, ensuring a steady supply for busy workshops.

This pack size supports both small and large projects, reducing the need for frequent reordering. The format suits professionals and hobbyists who require consistent sanding materials.