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 56106 5" Dia. Non-Vacuum Disc Pad, Vinyl-Face
Dynabrade 15336 Rubber Drive Wheel
Dynabrade 79158 1" W x 30" L 120 Grit Ceramic DynaCut Belt, 50/pack
Dynabrade 97060 Lever Pivot Pin, M2.5 x 24
Dynabrade 59179 6" Dia. Dynorbital-Spirit Random Orbital Sander, Non-Vacuum, 3/16" Orbit
Dynabrade 93095 3" Dia. x 80 Grit Premium Ceramic Non-Vacuum DynaCut, Locking-Type Disc, 3 Ply Cloth, 25/pack
3M 08920 Scotch-Brite Surface Conditioning Belt, SC-BS, A/O Very Fine, 1 in x 30 in, 7000120609
Dynabrade 45206 Housing for Model 55126
Dynabrade 91164 3/8" W x 13" L 120 Grit A/O DynaCut Belt, 50/pack
Dynabrade 96746 General Purpose Cleaning Kit
Dynabrade 42735 Brush Set Assembly
Dynabrade 64350 26" W x 36" L (660 mm W x 914 mm L) Metal Capture Downdraft Station, 230 V (AC)
Dynabrade 92100 3" W x 10-11/16" L 40 Grit A/Z DynaCut Belt, 10/pack
Dynabrade 51750 .1 hp Straight-Line Extension Pencil Grinder, Rear Exhaust, 60,000 RPM, 1/8" Collet
Dynabrade 78304 1-1/2" Dia. x 1" W x 1/4" Shank, 60 Grit, A/O DynaCut Flap Wheel, 10/pack
Dynabrade 78571 1-1/2" Dia. x 8-32 Female Center Thread, 60 Grit, A/O, 3-Ply, J-DynaCut Eyelet Star, 50/pack
Dynabrade 11394 DF II Contact Arm Ass'y, 24" Belt Offset
Dynabrade 56850 5" Dia. Non-Vacuum Dynorbital Supreme Random Orbital Sander, 3/32" Orbit
Dynabrade 40750 Carbon Brush Set
3M 15996, Venture Tape UL181B-FX Polypropylene Duct Tape 1599B, Silver, 48 mm x 109.7 m, 3 mil, 7100043760
Dynabrade 95541 Grease Gun
Dynabrade 56469 Exhaust Gasket
Dynabrade 94472 5" Dia. x 3-1/2" W Standard Dynacushion Pneumatic Wheel 
