3M™ Paper Belt 364UZ, P180 F-weight, 52 in x 103 in, Sine-lok, Full-flex, Finish 1, 5 ea/Case

$136.80 / Each

SKU	7100406056
Legacy SKU	60440624322
UPC	00068060127419
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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Width	0 null
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Shipping Dimensions
Weight	20.676 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 on?

Great question! The 3M™ Paper Belt 364UZ is ideal for sanding and finishing wood, particle board, MDF, and some metal surfaces. It’s very popular in woodworking applications!
What does "P180 F-weight" mean?

Absolutely! “P180” is the grit size that tells you this belt provides a medium-fine finish—perfect for smoothing surfaces. “F-weight” refers to the heavy-duty paper backing that offers extra durability for more demanding jobs.
How do I attach this belt with the Sine-lok system?

Super easy! The Sine-lok system means the ends of the belt are precisely cut to fit together securely when wrapped around your wide-belt sander’s drum, making installation fast and reliable every time.
Is it possible to buy just one belt or do they always come in cases of five?

That’s an excellent point! This product typically comes packaged five belts per case from 3M. If you’d like just one, let me know—I’ll happily help check our distributors or offer alternatives based on your needs!

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 carefully selected backing material 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 and loading—especially when working with softer woods. 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 optimal finishing results, 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 smoothly over contact wheels and platens, minimizing chatter marks and ensuring consistent, smooth operation in either direction. This contributes to a uniform finish and extends the usable life of the belt.

Premium Aluminum Oxide Abrasive for Versatile Performance

The 346UZ belt utilizes a premium aluminum oxide abrasive, a preferred choice among industrial professionals for its excellent cut-rate and extended service life. Aluminum oxide is a tough, durable mineral that self-fractures during use, continually exposing fresh, sharp cutting edges. This self-renewing property allows it to outperform traditional abrasives like garnet, which tend to wear down more quickly. With its high cut-rate, hardness, and low heat retention, aluminum oxide is ideal for a wide range of sanding and finishing applications on both wood and metal substrates, including ferrous alloys.

Versatile Belt Sizes for Multiple Applications

3M offers a comprehensive selection of abrasive belts in various widths and lengths to accommodate nearly any industrial belt sander. The 346UZ belt is available in sizes suitable for a broad spectrum of applications:

Wider belts are perfect for dimensioning and sanding large wood panels, smoothing rough-cut edges of metal sheets, or imparting a grain pattern to stainless steel surfaces.
Medium-width belts are designed for use with edge or portable belt sanders, making them ideal for sanding or blending wood components such as cabinet doors.

With its combination of advanced construction, premium abrasive materials, and versatile sizing, the 3M™ Paper Belt 346UZ is an excellent choice for professionals seeking reliable, high-performance sanding solutions for both woodworking and metalworking applications.

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