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 53080 1/2" Right Angle Drill, .7 HP, Rear Exhaust, 3,400 RPM
Dynabrade 51705 .1 hp Straight-Line Pencil Grinder, Rear Exhaust, 50,000 RPM, 3/32" Collet
Dynabrade 78780 3/8" x 1-1/2"-W176 Dynacut Cotton Fibre Polishing Mounted Point, 120GFX, 10/pack
Dynabrade 93394 4" Dia. x 1/2" Center Hole, 150 Grit, A/O,. Arbor-Mount Sanding Star, 10/pack
Dynabrade 15108 Knob Assembly
Dynabrade 11462 Dynabelter Finisher
Dynabrade 76020 Lubri-Pak
Dynabrade 11738 Contact Arm Adapter
Dynabrade 61470 Raptor Vac Pneumatic Vacuum - Wall-Mount Style, 1.5 Gallon
Dynabrade 78292 2" Dia. x 6A M Medium Type R Unitized Locking-Type Disc, 25/pack
Dynabrade 82558 1/8" W x 18" L 80 Grit Ceramic DynaCut Belt, 50/pack
Dynabrade 78733 7/8" x 2"-A11 Dynacut A/O Mounted Point, Vitrified, 5/pack
Dynabrade 78696 D8-6 Cartridge Roll Mandrel 1/8" Pilot Dia. x 3/4" Pilot Length, 1/4" Dia. Shank x 6" Shank Length
Dynabrade 92768 4" W x 150' L 60 Micron A/O Microfinishing Film DynaCut Roll
Dynabrade 51393 6"-8" Dia. Right Angle Two-Hand Rotary Buffer, 1 hp, 4,500 RPM, Rear Exhaust, 5/8"-11 Thread
Dynabrade 78562 3" Dia. 2-Set, 1/4-20 Female Center Thread, 80 Grit, Dynacut A/O Overlap Slotted Disc, 100/pack
Dynabrade 78728 1/8" x 3/8"-B97 Dynacut A/O Mounted Point, Vitrified, 5/pack
Dynabrade 96355 Phillips Screwdriver
Dynabrade 91540 5" Dynacut Extreme Orange Premium Film Disc, 180 Grit, Hook & Loop, Vacuum Holes, 50/Box 
