3M Paper Sheet 346U, 36 D-weight, 9 in x 11 in, 50/Pac, 250 ea/Case

• Load resistant open-coat feature enables longer use before replacement
• Sheets are conformable to various workpieces and usable by either hand or machine
• Sheets come in a number of sizes to accommodate various applications
• Strong, D-weight paper backing supports aggressive sanding
• Tough aluminum oxide abrasive cuts fast and performs well on many surfaces

3M Paper Sheet 346U is constructed of aluminum oxide and comes in a range of grades and sizes to accommodate many different projects. The paper backing is durable for coarse sanding, yet flexible enough to be used on curved surfaces. Its cut-rate and durability make this an excellent choice for blending the joints of connecting pieces in wood- and metal-working.

Aluminum oxide is a very hard mineral that maintains sharp points on the grains much longer than natural abrasives such as emery or garnet. The abrasive grains are adhered to the sandpaper with some space between them, known as open-coat construction, to minimize the buildup of dust on the surface of the paper, which would otherwise load the abrasive points. Loading often results from sanding soft materials and can clog the abrasive, shortening the usable life of the sandpaper sheet.

Trusted 3M Paper Sheet

The 3M Paper Sheet 346U offers reliable performance with its well-known brand and exact model number. This ensures you get a consistent product trusted by professionals and hobbyists alike. The model 346U is designed to meet specific sanding needs with quality you can count on.

Using this exact 3M model means you benefit from tested materials and manufacturing standards. Whether for woodworking or metal projects, the 346U delivers dependable results every time you use it.

Strong D-Weight Backing

This product features a 36 D-weight paper backing, which is strong enough to support aggressive sanding tasks. The durable backing helps maintain the sheet’s shape and effectiveness during use. It’s designed to handle tough surfaces without tearing easily.

The D-weight backing also allows the sheet to be flexible enough for curved surfaces, making it versatile for different sanding applications. This balance of strength and flexibility is key for smooth, even sanding results.

Perfect Sheet Dimensions

Each sheet measures 9 inches by 11 inches, providing a convenient size for both hand sanding and machine use. This dimension fits well in most sanding tools and allows for easy handling during detailed work. The size is practical for a variety of projects.

The 9 in x 11 in sheets are large enough to cover broad surfaces but still manageable for precision sanding. This size helps reduce waste and makes it easier to replace sheets as needed during a job.

Efficient Pack Format

The sheets come in packs of 50, with a total of 250 sheets per case. This format is ideal for professionals who need a steady supply of sanding sheets without frequent reordering. Buying in bulk also offers convenience and cost savings.

Having 50 sheets per pack means you can keep a fresh sheet ready for each task, reducing downtime. The case quantity of 250 sheets supports larger projects or multiple users in a workshop setting.

Open-Coat Abrasive Technology

The 3M Paper Sheet 346U uses an open-coat design with tough aluminum oxide abrasive grains. This setup reduces dust buildup on the sheet, extending its usable life. The abrasive cuts fast and performs well on many surfaces, making sanding more efficient.

Open-coat construction is especially helpful when sanding soft materials, as it prevents clogging and maintains sharp abrasive points longer. This technology ensures consistent sanding quality throughout the sheet’s lifespan.