Extra Fine and Indispensable
Few shops can do without abrasives in handy sheet form, and our 3M Paper Sheet 405U is built to be indispensable. A flexible A-weight paper backing provides excellent conformability and silicon carbide abrasive mineral delivers exceptional finishes.
Our silicon carbide abrasive sheets create a smoother finish than aluminum oxide products on most substrates. While it breaks down faster than aluminum oxide, it produces a superior finish. A resin bond construction provides superior grain retention while the open coat construction, along with the load-resistant coating, combine to provide excellent anti-loading characteristics.
These versatile sanding sheets contain the ideal abrasive grain type and grades for multi-step finishing processes.
Paper Backing for Conformability to Contours
The light A-weight backing provides conformability over contours and into crevices and corners. The sheet can also be easily cut to fit a hand pad block, inline sander, or finishing or power sanders. Other applications include general sanding, finishing, blending, surface leveling, prep prior to staining/painting and scuff sanding between coatings.
Recommended Applications
Silicon carbide is a synthetic mineral that is very sharp and commonly used for final finishing in white wood sanding.
It is ideal for general purpose sanding on wood, metal, plastic, dry wall, fiberglass, glass and ceramic materials as well as contour blending.

Insize 6140, DEPTH BASE ATTACHMENT, suitable for calipers with beam width (w) .630", 6928640303579
3M 27199, Foil Repair Tape 3311-10D, 2.0 in x 10 yd (50.8 mm x 9,1 m), 7100198304
3M 10115, Synthetic Steel Wool Pads, #3 Coarse, 7000051986
3M 15041, Scotch Electrical Shielding Tape 24, 1 in x 15 ft (25 mm x 4,6 m), 7000031348
3M 76632, Roloc Disc 777F, 50 YF-weight, TR, 3 in, Die R300V, 7000045628
3M™ 53797, Flexible Diamond Belt 6451J, 1/2" Dia x 18" L, M125 Micron, Type G, Pattern B2, 7010509272
3M 11412, Roloc Disc 361F, 36 YF-weight, TR, 1 in, Die R100N, 7000045092
Dynabrade 96101 Dynabrade Air Lube 10W/NR 24 Per Box
Dynabrade 53533 Cone or Plug Grinder (Triple Extension)
Dynabrade 53270 7" (180 mm) Dia. Right-Angle Disc Sander
3M 76783, Cubitron II Hookit Cloth Disc 784F, 120+ XF-weight, 5 in x NH, Die 500X, 7100222757
Dynabrade 51332 .7 hp Router, 3-1/2" Base, Central Vacuum, 20,000 RPM, 1/4 Collet
3M 10120, Synthetic Steel Wool Pads, 10120NA, #000 Extra Fine, 7000126149
Dynabrade 15003 Mini-Dynafile II Abrasive Belt Tool
Dynabrade 92186 1" W x 30" L 60 Grit A/Z DynaCut Belt, 50/pack
3M 35124, Grippy Sanding Cloth Trial Kit, 7100230957
Standard Abrasives 707195, Aluminum Oxide Handy Roll, P80 J-weight, 2 in x 50 yd, 7100031626
Air Turbine Tools 310RSV - 6mm Router Hand Tool Series with Brake, 30,000RPM, 33435
Norton 66254489957 Wheel, Vortex-7am, 6" X 1/2" X 1" C2312 Nor VTME7 PH VTC+, 4 Each
Dynabrade 77763 4-1/2" Dia. x 7/8" Center Hole, 60 Grit, Type 27, Ceramic DynaCut Flap Disc, 10/pack
3M 37853, Dirt Trap Protection Material, Gray, 56 in x 300 ft, 7100132344
Dynabrade 11477 Dynabelter Abrasive Belt Tool, Heavy-Duty
Dynabrade 22070 Downdraft Table Accessory Pack (Air Manifold, FRL and On/Off Air Valve)
3M 69602, Cloth Belt 777F, 60 YF-weight, 1 in x 11 in, Sine-lok, Full-flex, 7010295223, 500 per case
3M 26022, PPS Series 2.0 Adapter, Type S12, 10 mm Male, 1.0 mm Thread, 7100135943
Dynabrade 15006 Mini-Dynafile II Abrasive Belt Tool Versatility Kit
Dynabrade 95674 1/4" Female Coupler
3M 62715, Scotch-Weld Stainless Steel High Temperature Pipe Sealant PS67, White, 250 mL Tube, 7100039215, 2/case
3M 19768, Utility Cloth Sheet 314D, 9 in x 11 in P180 J-weight, 7000000356 
