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 92911 - 1" (25 mm) Dia. x 1-1/2" (38 mm) W Slotted Wheel
Dynabrade 02504 Rotor
Dynabrade 79166 1/2" W x 30" L 40 Grit Ceramic DynaCut Belt, 50/pack
Dynabrade 46000 .4 hp Right Angle Die Grinder, Rear Exhaust, 12,000 RPM, 1/4" Collet
Dynabrade 90424 1/4" W x 24" L 220 Grit A/O DynaCut Belt, 50/pack
Dynabrade 92209 1/8" W x 12" L 220 Grit A/O DynaCut Belt, 50/pack
Dynabrade 32010 Dolly for RaptorVac DrumVac Kits
Dynabrade 56727 .4 hp 7 Degree Offset Die Grinder, Central Vacuum, 5,000 RPM, 1/4" Collet
Dynabrade 78583 1/4" Dia. x 1-1/2" W x 1/8" Center Hole, 60 Grit, 100/pack
Standard Abrasives 708564, A/O Straight Cartridge Roll, 1/2 in x 2 in x 1/8 in 80, 7100093093
Dynabrade 95461 3/8" NPT Original Aluminum Dynaswivel
Dynabrade 82574 1/2" W x 24" L 60 Grit Ceramic DynaCut Belt, 50/pack
Dynabrade 96173 Motor Tune-Up Kit
Dynabrade Dynacut 94021, 10-piece, Alloy Specific Burr Kit (for Nickel & Titanium), 1/8" Shank
Dynabrade 79874 3" 600 Grit Dynacut Extreme Orange Film Vac Hook Face Disc, 50 per box
Dynabrade 78565 4" Dia. 2-Set, 1/4-20 Female Center Thread, 60 Grit, Dynacut A/O Overlap Slotted Disc, 100/pack
Dynabrade 50343 2" (51 mm) Dia. Depressed Center Grinder, .4 HP, 25,000 RPM, 3/8"-24 Spindle
Dynabrade 78315 2" Dia. x 1" W x 1/4" Shank, Coarse, NWN DynaBrite Wheel, 10/pack
Dynabrade 57127 3" (76 mm) Dia. Right Angle Depressed Center Wheel Grinder, Steel Housing, .55 HP, 15,000 RPM, 3/8"-24 Spindle
Dynabrade 02093 Drop-In Motor
Dynabrade 78101 2" Dia. x 80 Grit A/Z DynaCut Locking-Type Disc, 2 Ply Cloth, 25/pack
Dynabrade 57126 3" Dia. Dynabuffer Random Orbital Polisher
Dynabrade 78769 3" Dia. x 2" W x 1/4" Shank, Fine, NWN DynaBrite Wheel, 10/pack
Dynabrade 78572 2" Dia. x 1/4"-20 Female Center Thread, 60 Grit, A/O, 3-Ply, J-DynaCut Eyelet Star, 50/pack
Dynabrade 54785 3" (76 mm) Dia. Extended Right Angle Type 27 Depressed Center Wheel Grinder, Steel Housing, .7 HP, 18,000 RPM, 3/8"-24 Spindle
Dynabrade 78639 3/8" Dia. x 1-1/2" W x 1/8" Center Hole, Z/A, 120 Grit, 100/pack 
