Aluminum oxide is a very hard mineral that maintains sharp points on the grains much longer than natural abrasives such as emery or garnet. The abrasive grains are adhered to the sandpaper with some space between them, known as open-coat construction, to minimize the buildup of dust on the surface of the paper, which would otherwise load the abrasive points. Loading often results from sanding soft materials and can clog the abrasive, shortening the usable life of the sandpaper sheet.
3M 02116, Paper Sheet 346U, 60 D-weight, 9 in x 11 in, 7000120221
$1.11
Factory Stock, 7-10 Day Leadtime
3M Paper Sheet 346U is constructed of aluminum oxide and comes in a range of grades and sizes to accommodate many different projects. The paper backing is durable for coarse sanding, yet flexible enough to be used on curved surfaces. Its cut-rate and durability make this an excellent choice for blending the joints of connecting pieces in wood- and metal-working.

3M 76631, Roloc Disc 777F, TR, 3 in x NH, 36 YF-weight, 7000028339
3M 20230, Scotch-Seal Metal Sealant 2084, Silver, 5 Gallon Drum (Pail), 7000046344
3M 22409, Roloc Disc 361F, P120 XF-weight, TR, 1-1/2 in, Die R150S, 7000045103
3M 40465, VentureClad Heavy Duty Insulation Jacketing Tape 1579GCW, Silver, 30 in x 25 yd, 7100209735
Norton 66254432925 Wheel, 3" X 1/2" X 1/4" Bear-Tex, Rapid Blend, Non-Woven 5 Density, A/O, M Grit, 20 Each
3M 02960, Scotch-Brite Cut and Polish Wheel, CP-WL, 5A Fine, 6 in x 1 in x 1 in, 7100009186, Box of 3
3M 29858, Sanding Screen, 80 grit, 12 in x 18 in, 7100161088
3M 77558, Cubitron II Hookit Cloth Disc 947A, 77558, 40+ to 120+, 6 in x NH, Die 600Z, 7100232737
3M 50216, Temflex Cotton Friction Tape 1755, 3/4 in x 82-1/2 ft, Black, 7010297809
3M 22394, Roloc Disc 361F, 50 YF-weight, TR, 3 in, Die R300V, 7000045096
Standard Abrasives 882173, A/O Unitized Wheel, 821, 6 in x 1/4 in x 1/2 in, 7010330323
3M 33780, 641WY 1/4" X 24", 400 Mesh Diamond Cloth Belt, 7010534915
3M 06839, Booth Coating, 1 Galllon, 7000028421
Dynabrade 40320 Dynafile II Abrasive Belt Tool
3M 13718, Scotch-Brite EXL Unitized Wheel, XL-UW, 2S Fine, 3 in x 3/4 in x 1/4 in, 7000046025
3M 33349, 641WY 1/4" X 24", 220 Mesh Diamond Cloth Belt, 7010534919
3M 95725, Venture Tape Metal Building Facing Tape 1552CW, White, 72 mm x 45.7 m, 7010313505
3M 34550, Cubitron II Net Sheet Roll, 80+, 80 mm x 10 m, 7100283781, 6 Rolls/Case
3M 05752, Perfect-It Quick Connect Adaptor, 05752, 5/8 in, 7100141852
Standard Abrasives 708751, PSA A/O Disc, 12 in x NH, 60, 7010370081
Dynabrade 53533 Cone or Plug Grinder (Triple Extension)
3M 57894, 642WY 1/4" X 24", 50000 Mesh Diamond Cloth Belt, 7100230570
3M 55053, Cubitron II Cloth Belt 984F, 80+ YF-weight, 1/2 in x 12 in, Fabri-lok, Single-flex, 7000119518, 200 per case
3M 03601, Plastic Emblem and Trim Adhesive, 1 oz, 7100045880, 24 per case
3M 20909, PSA Cloth Disc 348D, 80 X-weight, 2 in x NH, Die 200P, 7000118873
Dynabrade 95843 Dynabrade Air Lube 10W/NR, 1 Gallon
3M 16091, PPS Mix Ratio Inserts, Large (28 fl oz), 7000028411
3M 28214, Cubitron II Roloc Disc 984F, 60+ YF-weight, TR, 2 in, Die R200P, 7010361116 
