We gave these discs an open coat construction and a load-resistant coating to help prevent clogging of the disc to optimize cut and prolong disc life. The Hookit (hook-and-loop) attachment system makes disc changes fast and easy, meaning the disc can be used again and again for the extent of the abrasive life.
We chose silicon carbide, which is a very hard and sharp mineral commonly used for low-pressure applications such as paint prep and the final stages of whitewood sanding. While it may have a shorter life than aluminum oxide, it produces a superior finish and should be used where the best possible finish is desired.
Sandpaper discs cut better and last longer when dust isnt loading the cutting surface of the abrasives. Open coat construction means the abrasive grains are placed with space between them to help evacuate sanding dust and avoid clogging the cutting edge of the grains. The load-resistant coating also allows the disc to continue cutting even when sanding softwoods, paints, and other materials that would, otherwise, clog the disc and hinder sanding ability.
Together with the 3M Hookit backing, these features add up to increased productivity and reduced material consumption.

Dynabrade 11684 Dynabelter Contact Arm Assembly 4" DIA X 5/8" W., 40 Duro Serrated
Dynabrade 01011 Vane Set (4pk)
Dynabrade 14000 Dynafile Abrasive Belt Tool
Standard Abrasives 880213, Buff and Blend GP Wheel, 2 in x 1 Ply x 1/4 in A MED, 7100095601
ACS Diamond Cloth Belt, CX1250 3" X 90" 125U
3M 11419, Roloc Disc 361F, P240 XF-weight, TR, 2 in, Die R200P, 7000045105
Dynabrade 11477 Dynabelter Abrasive Belt Tool, Heavy-Duty
Dynabrade 51811 .1 hp Straight-Line Pencil Grinder, Rear Exhaust, 1000,000 RPM, 1/16" Collet
Dynabrade 51630 .1 hp Straight-Line Extension Pencil Grinder, Central Vacuum, 1/8" Collet
Dynabrade 11476 Dynabelter Abrasive Belt Tool, Heavy-Duty
3M 11411, Roloc Disc 361F, 50 YF-weight, TR, 1 in, Die R100N, 7000045095
Dynabrade 55501 .1hp Pencil Grinder, Twin Turbine, 100,000 RPM, Nickel-Plated Aluminum Housing, 3mm Collet
Dyanbrade NF1B NitroFile Abrasive Belt Tool with 11206 Contact Arm and 15352 Drive Wheel, 5.hp 7 Degree Offset, 20,000 RPM, Gearless, Front Exhaust
3M 74766, Cushion-Mount Plus Plate Mounting Tape E1020H, White, 18 in x 25 yd, 20 mil, 7000042357
3M 34786, 663FC, 3/4" X 90", 70u, Diamond Trizact Belts 7100063667
Dynabrade 53270 7" (180 mm) Dia. Right-Angle Disc Sander
Dynabrade 11518 Rubber Drive Wheel
Dynabrade 11254 Contact Arm Ass'y, 4-3/4" Dia. x 1/2" W
3M 01326, PSA Cloth Disc 348D, P240 X-weight, 3 in x NH, Die 300V, 7000045069
3M 22393, Roloc Disc 361F, 36 YF-weight, TR, 3 in, Die R300V, 7000045093
Dynabrade 51629 .1 hp Straight-Line Pencil Grinder, Central Vacuum, 1/8" Collet 
