3M™ Paper Belt 364UZ, P100 F-weight, 52 in x 103 in, Sine-lok, Full-flex, Finish 1, 5 ea/Case

$136.80 / Each

SKU	7100406151
Legacy SKU	60440624298
UPC	00068060127389
Product Number	364UZ

3M Paper Belt 346UZ is constructed with a premium aluminum oxide mineral. It is an open coat construction for loading resistance and is coated on an F-weight paper backing to efficiently sand and finish. F-weight is one of the heaviest, most rigid paper backings available and will achieve finer finishes than cloth backed belts in the same grade.

F-weight heavy paper backing provides durability and smooth operation in either direction
Anti-static treatment helps manage dust and loading
Sine wave splice prevents hinging in splice area, resists fatigue, and minimizes chatter marks
Premium aluminum oxide mineral provides aggressive cut and long abrasive life
Open coat provides fast stock removal

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Incredibly Versatile

Durable

Easy to use

Excellent Cut Rate

Product Dimensions	Imperial	Metric
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Shipping Dimensions
Weight	24.419 lb
Length	55.31299 in
Width	11.8748 in
Height	8.3748 in

PRODUCT FAQ

What materials can I use the 3M™ Paper Belt 364UZ, P100 on?

Great question! The 3M™ Paper Belt 364UZ with P100 grit is designed mainly for sanding wood and lacquer surfaces. It offers great performance in woodworking applications where fine finishes are important.
What does "Full-flex" mean for this paper belt?

"Full-flex" means the backing of the belt is flexible enough to wrap around contours or sand curved surfaces easily—giving you more control and consistent results!
How do I know if the Sine-lok system will fit my machine?

No problem! The Sine-lok attachment system is a special joint that fits compatible wide belt sanders. It's always best to check your sander’s specifications or reach out—we’re happy to help you ensure it’s a perfect match.
Is this belt good for finishing projects as well as sanding them down?

Absolutely! With its P100 grit size, this belt strikes a nice balance between smoothing rough surfaces and prepping them for finer finishing—making it very versatile whether you're shaping or putting those final touches on your project.

For industrial/occupational use only. Not for consumer sale or use.

3M industrial and occupational products are intended, labeled, and packaged for sale to trained industrial and occupational customers for workplace use. Unless specifically stated otherwise on the applicable product packaging or literature, these products are not intended, labeled, or packaged for sale to or use by consumers (e.g., for home, personal, primary or secondary school, recreational/sporting, or other uses not described in the applicable product packaging or literature), and must be selected and used in compliance with applicable health and safety regulations and standards (e.g., U.S. OSHA, ANSI), as well as all product literature, user instructions, warnings, and other limitations, and the user must take any action required under any recall, field action, or other product use notice. Misuse of 3M industrial and occupational products may result in injury, sickness, death, or property damage. For help with product selection and use, consult your on-site safety professional, industrial hygienist, or other subject matter expert.

Durable Paper Backing for Smooth Operation

The 3M™ Paper Belt 346UZ is engineered with a robust paper backing that ensures both smooth operation and long-lasting durability. This sturdy backing provides the necessary support for demanding sanding and finishing tasks, helping to maintain consistent performance throughout the belt’s lifespan.

Open Coat Structure for Superior Dust Management

On the abrasive side, the 346UZ belt features an open coat construction. This design leaves space between the abrasive grains, which helps to minimize clogging—especially when working with softer woods that tend to generate more dust. The open coat structure, combined with 3M’s advanced dust management technology, significantly reduces static cling in dust particles. When paired with an effective dust collection system, this allows for more efficient evacuation of dust, resulting in a cleaner work environment and improved sanding performance.

Innovative Sine Wave Splice for Enhanced Belt Strength

To ensure reliable performance and a smooth finish, the ends of the 3M™ Paper Belt 346UZ are joined using a sine wave splice. This unique splice design enhances the overall strength of the belt and resists hinging and fatigue at the joint. The sine wave splice travels seamlessly over contact wheels and platens, minimizing chatter marks and ensuring consistent, smooth operation in either direction. This contributes to uniform finishing results and extends the usable life of the belt.

Premium Aluminum Oxide Abrasive for Versatile Performance

The 346UZ belt utilizes a high-quality aluminum oxide abrasive, a preferred choice among professionals for its exceptional cut-rate and longevity. Aluminum oxide is a tough, durable mineral that self-fractures during use, continually exposing fresh cutting edges for sustained performance. Unlike traditional abrasives such as garnet, which can wear down quickly, aluminum oxide maintains its effectiveness over extended use. Its high cut-rate, hardness, and resistance to heat make it ideal for a wide range of sanding and finishing applications on both wood and metal, including ferrous alloys.

Versatile Belt Sizes for Multiple Applications

3M offers the Paper Belt 346UZ in a variety of widths and lengths to accommodate different types of belt sanders and a broad spectrum of industrial applications. Whether you need to dimension and sand large wood panels, smooth the rough edges of metal sheets, or create a grain pattern on stainless steel, there is a belt size to fit your needs. Wider belts are perfect for large-scale sanding tasks, while medium-width belts are well-suited for edge or portable sanders, making them ideal for finishing wood pieces such as cabinet doors.