Product Details
The 3M™ Cloth Belt 577F measures 37" x 75" and features an 80 grit alumina zirconium abrasive grain designed for increased cutting efficiency compared to aluminum oxide belts. It is backed with a heavy, water-resistant polyester backing that withstands high-pressure applications and edge work, supporting both wet and dry operations. This belt is recommended for use on aluminum, mild steel, stainless steel, and other exotic metal alloys for dimensioning parts, deburring, blending, and finishing castings and forgings. To protect heat-sensitive alloys such as stainless steel, nickel alloys, and cobalt alloys, the belt includes a grinding aid to reduce running temperatures. The abrasive is resin-bonded to the backing to maintain durability under high heat and pressure. Alumina zirconia abrasives frequently fracture to continually expose sharp points, providing a faster cut rate than aluminum oxide and are developed for heavy stock removal and high-pressure grinding. The belts come in various widths and lengths to fit different industrial belt sanders; wider belts are used with wide belt sanders for flat finishing on metal sheets, medium-width belts for weld removal or finishing sheets and coils, and narrow belts for grinding and finishing in tight corners. Key applications include descaling, flat finishing, high-pressure grinding, intermediate finishing, mill scale removal, plate grinding, sheet grinding, and slab grinding in industries such as builders hardware, medical instruments, and metal fabrication. Warranty terms apply as provided by 3M.








