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 69354 Ergo Grip
Dynabrade 78774 9" Dia. x 7/8", 80 Grit, Dynacut Ceramic Fibre Disc, 25/box
Dynabrade 58096 Drop-In Motor
Dynabrade 54791 4" (102 mm) Dia. Right Angle Type 27 Depressed Center Wheel Grinder, Steel Housing, .7 HP, 13,500 RPM, 3/8"-24 Spindle
Dynabrade 43510 .4 hp 6" (152 mm) Extension Die Grinder, Front Exhaust, 25,000 RPM, 1/4" Collet
Dynabrade 93595 1/2" Dia. x 3-48 Female Center Thread, 150 Grit, A/O, 3-Ply, J-DynaCut Eyelet Star, 50/pack
Dynabrade 48335 .4 hp 7 Degree Offset Die Grinder, Rear Exhaust, 25,000 RPM, 1/4" Collet
Dynabrade 04115 Air Motor
Dynabrade 40326 Dynafile II Abrasive Belt Tool for 20-1/2" Belts
Dynabrade 93333 Carbide Burr, 3/8" Dia., SC-3 D/C Burr, Cylinder-Radiused End, 3/4" Flute L, 1/4" Shank
Dynabrade 50781 Lock Ring
Dynabrade 64354 26" x 36" (660 mm W x 914 mm L) Metal Capture Downdraft Station, 460 V (AC)
Dynabrade 54347 .7 hp Extended Right Angle Die Grinder, Rear Exhaust, 12,000 RPM, 1/4" Collet
Dynabrade 47212 .4 hp 7 Degree Offset Die Grinder, Rear Exhaust, 5,000 RPM, 1/4" Collet
Dynabrade 61204 RaptorVac Pneumatic DrumVac Kit, Single Operator, General Purpose
Dynabrade 58441 5" Dia. Two-Hand Gear-Driven Sander, Non-Vacuum, .45 HP, 900 RPM, Hook-Face Pad
Dynabrade 95677 1/4" Male Plug with 1/4" NPT Female Thread
Dynabrade 78363 8" Dia. x 1" W x 3" Center Hole, 8S Fine, S/C DynaBrite Deburring Convolute Wheel, 2/box
Dynabrade 52574 4" (102 mm) Dia. Straight-Line Cut-Off Wheel Tool, Rear Exhaust, 1 HP, 18,000 RPM, 3/8"-24 Spindle
Dynabrade 15029 Contact Arm Ass'y, 1" Dia. x 3/8" W, Tapered Rubber Wheel, No Platen/Offset Design
Dynabrade 53682 Gasket
Dynabrade 52491 Bushing
Dynabrade 52420 3" (76 mm) Dia. 7 Degree Offset Cut-Off Wheel Tool, .5 HP, 20,000 RPM, 3/8"-24 Spindle
Dynabrade 11803 Tension Arm
Dynabrade 77794 4-1/2" Dia. x 7/8" Center Hole, 80 Grit, Type 29, Ceramic DynaCut Flap Disc, 10/pack
Dynabrade 51300 .5 hp Straight-Line Die Grinder, Front Exhaust, 15,000 RPM, 1/4" Collet 
