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.

Dynabrade 10690 Filter/Regulator/Lubricator, FRL40, 1/2" NPTAssy.
Dynabrade 14336 Platen Pad Assy
Dynabrade 56470 ND9280 Mounting Plate Assy
Dynabrade 80020 Dynamount Bench Mount (for Dynafile 14000)
Dynabrade 02673 Rear Bearing Plate
Dynabrade 61420 Raptor Vac Electric Portable Vacuum System
Dynabrade 64354 26" x 36" (660 mm W x 914 mm L) Metal Capture Downdraft Station, 460 V (AC)
Dynabrade 56054 Insert (30/Pkg.)
Dynabrade 90704 5" Dia. x 1" W, 36 Grit, Z/A DynaCut Band, 10/pack
Dynabrade 78304 1-1/2" Dia. x 1" W x 1/4" Shank, 60 Grit, A/O DynaCut Flap Wheel, 10/pack
Dynabrade 52222 .5 hp 7 Degree Offset Die Grinder, Rear Exhaust, Short Shank, 20,000 RPM, 1/4" Collet
Dynabrade 78478 3" Dia. x 1", 1/4-20 Female Center Thread, A/O, 80 Grit, 8-Ply J-DynaCut Cross Pad, 100/pack
Dynabrade 92754 3" W x 150' L 15 Micron A/O Microfinishing Film DynaCut Roll
Dynabrade 82576 1/4" W x 24" L 80 Grit Ceramic DynaCut Belt, 50/pack
Dynabrade 58503 3-1/4" W x 5" L Dynabug II Orbital Sander, Non-Vacuum, .15 HP, 10,000 RPM, 3/32" Orbit
Dynabrade 78195 3" Dia. x 36 Grit A/O DynaCut Locking-Type Disc, 2 Ply Cloth, 25/pack
Dynabrade 52863 .4 hp Straight-Line Pencil Grinder, Rear Exhaust, 25,000 RPM, 1/4" Collet
Dynabrade 54374 .7 hp Extended Right Angle Die Grinder, Rear Exhaust, 12,000 RPM, 1/4" Collet
Dynabrade 15010 Mini-Dynafile II Abrasive Belt Tool For 18" Belt
Dynabrade 31991 - 3/4" to 1" Vacuum Whip Hose 4" Long w/Swivel Adaptor
Dynabrade 78673 3/4" Dia. x 1-1/2" W x 1/8" Center Hole, Tapered Cartridge Rolls, A/O, 60 Grit, 100/pack
Dynabrade 79471 4" Dia. x 4" W, 3/4" Center Hole, 80/Medium, DynaBrite Interleaf Wheel
Dynabrade 15002 Vacuum Mini-Dynafile II Abrasive Belt Tool
Dynabrade 90375 2" W x 34" L 220 Grit A/O DynaCut Belt, 10/pack
Dynabrade 51347 3" (51 mm) Dia. Locking-Type Disc Pad, Medium Density, 3/8"-24 Thread
Dynabrade 53812 .7 hp Straight-Line Die Grinder, Steel Housing, Rear Exhaust, 20,000 RPM, 1/4" Collet
Dynabrade 52678 1 hp Straight-Line 6" (152 mm) Extension Die Grinder, Rear Exhaust, 18,000 RPM, 1/4" Collet
Dynabrade 95698 [2-1/4" Thread - 2" Non-Thread], Non-Conductive Vacuum Hose Swivel Cuff
Dynabrade 52719 Cone or Plug 6" (152 mm) Extension Wheel Grinder, 12,000 RPM, 3/8"-24 Male Thread Spindle
Dynabrade 58035 1-1/4" Dia. Right Angle Mini-Orbital Sander, 15K RPM, .4 HP, Front Exhaust
Dynabrade 57930 Dynafine Finger Sander, .12 HP, 15,000 RPM, 1/32" Orbit
Dynabrade 52900 Take-About Sander Abrasive Belt Tool, Central Vacuum
Dynabrade 01894 Drop-In Motor
Dynabrade 52173 Shim (4/Pkg.)
Dynabrade 78770 3" Dia. x 2" W x 1/4" Shank, Very Fine, NWN DynaBrite Wheel, 10/pack
3M 20912, PSA Cloth Disc 348D, 40 X-weight, 2 in x NH, Die 200P, 7000118920
3M 13180, Scotch-Brite Multi-Finishing Wheel, MU-WL, 2S Medium, 6 in x 3 in x 1 in, 7000148248
3M 22395, Roloc Disc 361F, 60 YF-weight, TR, 3 in, Die R300V, 7000045098
3M 34118, 663FC, 2" X 120", 70u, Diamond Trizact Belt 7010509077 
