The film backing gives you a close-tolerance, consistent finish, making it a good choice for applications such as spot repairs, sanding plastic parts, paint feathering on defects, or sanding automotive primer.
To help reduce loading on the disc, we designed an open coat construction without a load-resistant stearate coating. Our convenient 3M Hookit hook-and-loop attachment on the backing enables easy re-use so the disc can be used again and again for the life of the product, and attaches to our low-profile 3M Hookit Disc Pad (sold separately) on a random orbital sander. Our Film Disc 360L comes in a range of grades for various applications from fine sanding to finishing.
Aluminum oxide is a popular choice among industrial professionals because of its fast cut-rate and long life. This mineral makes a tough, durable abrasive that self-fractures to expose fresh cutting edges, whereas traditional natural abrasives dull more quickly. Due to its fast cut-rate, hardness, and strength, it is widely used in grinding applications in addition to sanding and finishing applications. Aluminum oxide is suitable for a wide variety of materials in both woodworking and metalworking, including ferrous alloys.
At 3M we offer a complete line of hook-and-loop style 3M Hookit discs for work spaces where adhesive backed discs may become contaminated by dust, dirt, or flying debris. They are often used in applications where a 3M Stikit disc may be too aggressive, as Hookit discs tend to leave finer finishes than adhesive backed discs. Hookit sanding discs conveniently and firmly attach to a hook-and-loop backup disc pad (sold separately) on a random orbital sander, can be removed cleanly and easily, and can be re-used again and again for the extent of the abrasive life

Dynabrade 50789 Shroud 3_ Vac. Coated Abrasive Disc Sander
Dynabrade 96174 Motor Tune-Up Kit
Dynabrade 21777 ND257-010, Motor Spacing Shim, .010"
Dynabrade 79325 4-1/2" Dia. x 7/8" Center Hole, 36 Grit, Ceramic DynaCut Fiber Disc, 25/box
Dynabrade 50282 5" Dia. Disc Backup Pad, Spiral-Face, Medium Density, 5/8"-11 Thread
Dynabrade 40376 Rotor
Dynabrade 51124 Collet, M8 x 1.0 Female Thread, 1/4" Capacity
Norton 66623335427, 2" Dia Vortex Rapid Prep Quick-Change Non-Woven Abrasive Disc, Medium Grade, 50 Each
Dynabrade 53235 7" Dia. Type 27 Vertical Depressed Center Wheel Grinder, 2 HP, 8,500 RPM, 5/8"-11 Spindle
Dynabrade 52051 Lightweight Dyninger Finishing Tool
Dynabrade 56489 - 8" Random Shroud
Dynabrade 79476 4-1/4" Dia. x 2" W, 5/8"-11 Center Thread, 60/Course, DynaBrite Interleaf Wheel
Dynabrade X52VHS 5" Dia. Vacuum Dynorbital Extreme Random Orbital Sander, Hook Pad W/ Speed Regulator
Dynabrade 57059 Lock Ring 