Key Features

• F-weight, Fullflex heavy paper backing provides durability and smooth operation in either direction
• Static resistant 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

Product Description

The 3M™ Paper Belt 346UZ is constructed with a premium aluminum oxide, load resistant, open coat abrasive bonded on an F-weight Fullflex, heavy paper backing to efficiently sand and finish flat surfaces in woodworking applications. 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. The paper backing is ideal when frequent belt replacement is required and also provides smooth operation and durability. The abrasive side features an open coat structure. The looser density of abrasives resists loading better than closed coat belts, particularly on soft wood. This belt also features 3M dust management technology that reduces static cling in the dust particles, allowing them to be pulled away when coupled with an efficient dust collection system. To support desired finishing results, the belt ends are joined using an interlocking sine wave splice that promotes belt strength and resists hinging and splice fatigue. The splice travels smoothly over contact wheels and platens, minimizes chatter marks, and promotes smooth operation in either direction for consistent finishing results. P-graded abrasive grains in 3M paper belts are screened to a finer tolerance than non-P-graded abrasives and produce a more uniform surface finish.

The 3M Paper Belt 364UZ features a premium aluminum oxide abrasive, which is a popular choice among industrial professionals because of its cut-rate and long life. This mineral is a tough, durable abrasive that self-fractures to expose fresh cutting edges in use, whereas traditional abrasives, such as garnet, quickly wear down with use. Due to its high cut-rate, hardness, strength, and low heat retention, aluminum oxide mineral is widely used for sanding and finishing applications. Aluminum oxide is suitable on a wide variety of substrates in both woodworking and metalworking, including ferrous alloys.

Abrasive belts come in many different widths and lengths and are used on a variety of different belt sanding tools for many different applications on both wood and metal. 3M offers a broad selection of belts to fit most any industrial belt sander. Wider belts are used to dimension and sand large wooden panels, smooth rough cut edges of metal sheets, or add a grain pattern to stainless steel sheets. Medium-width belts fit onto edge or portable belt sanders for sanding or blending wood pieces such as cabinet doors, and narrow belts are used with file tools in metalworking to access small areas or inside corners.

For more than a century, 3M has applied innovation and technology to improving our customers’ lives and supporting their business goals. Today the company, from its headquarters in St. Paul, Minnesota, serves industrial and commercial customers and consumers in nearly 200 countries. Abrasive Systems products, including a complete line of coated abrasives, microfinishing and microreplicated abrasives, and hardware accessories, provide the finishing touch for almost any surface conditioning application. The 3M brand, across thousands of products, represents consistency, superior quality, and value.