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 56195 5" Dia. Non-Vacuum Disc Pad, Hook-Face, Short Nap
Dynabrade 50947 - 8" (203 mm) Dia. Non-Vacuum Wet/Dry Sander Disc Pad, Hook-Face, Short Nap
Dynabrade 91548 5" Dynacut Extreme Orange Premium Film Disc, 150 Grit, Hook & Loop, Non-Vacuum, 50/Box
Dynabrade 43488 Shaft, Extension Die Grinder, 3"
Standard Abrasives 710335, A/O Straight Cartridge Roll, 1/4 in x 1 in x 1/8 in 60, 7100080015
Dynabrade 58021 - 3/8" (10 mm) Dia. Non-Vacuum Dynafine Backsplash Radius Disc Pad, Vinyl-Face
Dynabrade 96005 - 1/4" Male Plug with 3/8" NPT Male Thread
3M 92572, Temflex Vinyl Electrical Tape 165, Gray, 3/4 in x 60 ft (19 mm x 18 m), 6 mil, 7100169192
Dynabrade 90248 1/2" W x 18" L Very Fine NWN DynaBrite Premium Belts, 10/pack
Dynabrade 91629 1-1/2" W x 24" L 320 Grit A/O DynaCut Belt, 10/pack
Dynabrade 79008 1/4" W x 12" L 80 Grit A/Z DynaCut Belt, 50/pack
Norton 66254497067 - 2" X 1/4" 100 - 150 Grit Medium Grade Aluminum Oxide Vortex Rapid Blend Blue TR Non-Woven Abrasive Disc, 25 Each
Dynabrade 90473 1/4" W x 30" L 320 Grit A/O DynaCut Belt, 50/pack
Dynabrade 01024 O-Ring
Dynabrade 78739 5/16" x 5/8"- B53 DynaFire A/O Vitrified Mounted Point, 5/pack
Dynabrade 02679 Shield
Dynabrade 92202 1-1/2" W x 30" L 80 Grit A/Z DynaCut Belt, 50/pack
Dynabrade 78143 6" Dia. x 1/2" Center Hole, Extra Coarse, DynaStrip Disc
Dynabrade 64657 48" (122 cm) W x 96" (244 cm) L Downdraft Sanding Table, 115 V (AC)
Dynabrade 31935 1" to 1-1/4" Vacuum Whip Hose 4" Long w/Swivel Adaptor
Dynabrade 55223 Rotor Spacer
Dynabrade 61420 Raptor Vac Electric Portable Vacuum System
Dynabrade 52102 .5 hp Straight-Line Die Grinder, Rear Exhaust, 4,500 RPM, 1/4" Collet 
