Aggressive and long lasting non-woven belt for deburring, finishing, blending and cleaning. The reinforced low-stretch backing offers good flexibility and great edge durability. Excellent for portable belt tools. More aggressive. Long lasting. Best flexibility. Reduces loading. Reduced shelling from sharp edges. Back Purple color. Maroon color. Converted form: file belt. Equipment - machines: backstand, file belt sanders, inline sanders. Form type: low stretch. Front Maroon color. Grade: medium.

The 3M™ Scotch-Brite™ Durable Flex Belt is a medium grade, durable-strength product engineered to perform tough detail work such as deburring, blending, and finishing, on a variety of metals. The reinforced, low-stretch backing and superior edge durability aid in supplying an aggressive cutting ability. The non-woven fiber material runs cool, resists loading, and holds up to edge work while aluminum oxide abrasives provide effective cutting action that produces consistent finishing performance over the life of the belt. All Scotch-Brite™ Durable Flex Belts can be distinguished by their purple backing.
This maroon, medium grade belt uses aluminum oxide abrasive. Aluminum oxide 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 in grinding applications in addition to sanding and finishing use. Aluminum oxide is suitable on a wide variety of substrates in both woodworking and metalworking, including ferrous alloys.
Belt sanders are used for rapid grinding, sanding and finishing on a variety of surfaces. Depending on the material being worked, sanding wheels and discs may clog, quickly making them less efficient, while belt sanders continue to sand without clogging because small grooves in the abrasive belt open as they go around the arc of the drive wheel.
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.