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.

3M 05009, Utility Cloth Roll 211K, 100 J-weight, 1 in x 50 yd, Full-flex, 7100016843
Dynabrade 92585 3-1/2" Dia. x Medium Hook-Face Surface Conditioning DynaBrite Disc, 10/pack
3M 01326, PSA Cloth Disc 348D, P240 X-weight, 3 in x NH, Die 300V, 7000045069
3M 85652, Thermosetable Glass Cloth Tape 3650, White, 4 in x 60 yd, 8.3 mil, 7010373472
3M 16162, PTFE Glass Cloth Tape 5453, Brown, 2 in x 36 yd, 8.2 mil, 7000144794
3M 50013, Venture Tape Cloth Duct Tape 1500, Silver, 72 mm x 55 m (2.83 in x 60.1 yd), 7010337384
3M 77197, Scotch-Brite™ Roloc™ Deburr and Finish PRO Unitized Wheel,TR, 3 in x 1/8 in x NH, 8C CRS+, 7100109130, 40/box
3M 93947, Scotch Stucco Tape 3260-A, 1.88 in x 60 yd (48 mm x 54.8 m), Stucco Tape, 7010384961
3M 76783, Cubitron II Hookit Cloth Disc 784F, 120+ XF-weight, 5 in x NH, Die 500X, 7100222757
Dynabrade 11253 Contact Arm Assy
3M 45714, Cubitron II Hookit Cloth Disc 947A, 120+ X-weight, 3 in x NH, D/F 3HL, Die 300BE, 7100113113
3M 06970, Scotch Polyethylene Coated Cloth Tape 390, Olive, 48 mm x 54.8 m, 11.7 mil, 7000048963
3M 11411, Roloc Disc 361F, 50 YF-weight, TR, 1 in, Die R100N, 7000045095
3M 63738, Contractor Grade Multi-Use Duct Tape 2979, Silver, 1.88 in x 60 yd, 7010335692
3M 49833, Multi-Purpose Duct Tape 3900, Black, 48 mm x 54.8 m, 7.7 mil, 7000148383
3M 85653, Thermosetable Glass Cloth Tape 3650, White, 5 in x 60 yd, 8.3 mil, 7010334203
3M 71358, 641WY 1/4" X 24", 600 Mesh Diamond Cloth Belt, 7010534894
3M™ 17379, Versaflo™ Length Adjusting Breathing Tube BT-30, 7100009685, 1 EA/Case
Dynabrade 11476 Dynabelter Abrasive Belt Tool, Heavy-Duty
3M 28135, Hookit Clean Sanding Disc 900DZ, 6 in P100 J-weight, Die 500LG, 7010300153
Insize 1120-150P, DIGITAL INSIDE GROOVE CALIPER, .87-6"/22-150mm, IP67 dust/waterproof, 6928640387401
3M 64324, Foil Tape 3340, Silver, 72 mm x 45.7 m, 3.9 mil, 7010335734
3M 65488, Pro Grade Precision Ultra Durable Universal Hole Sanding Disc, DUH5100TRI-10T, 5 IN x UH, 100, 7100202881, 10 per pack
3M 76623, Roloc Disc 777F, 50 YF-weight, TR, 1 in, Die R100N, 7000045619
3M™ 07010, Supplied Air Respirator Hose W-9435-25/07010(AAD), 25 ft, 3/8 in ID, Industrial Interchange Fittings, High Pressure, 7000005374, 1 EA/Case
3M 26016, PPS Series 2.0 Adapter, Type S9, 16 mm Male, 1.5 mm Thread, 7100135330
3M 96673, Glass Cloth Tape 398FR, White, 3 in x 36 yd, 7 mil, 7000001301
3M 35083, EMI Copper Foil Shielding Tape 1181, 1/4 in x 18 yd (6,35 mm x 16,5 m), 7000132168
Dynabrade 10690 Filter/Regulator/Lubricator, FRL40, 1/2" NPTAssy.
3M 20967, Portable Utility Cloth Roll 314D, P240 J-weight, 1 in x 20 yd, 7010290604 
