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 11109 3/4" W x 7" L Hard Platen Pad 5-Pkg.
Dynabrade 69359 Muffler Body
Dynabrade 90493 1/2" W x 30" L 180 Grit A/O DynaCut Belt, 50/pack
Dynabrade 53143 1/2" Drill, Hole Saw, 1 HP, Rear Exhaust, 850 RPM
Dynabrade 57039 Adaptor, Stamped 57010, 12K RPM
Dynabrade X3161H - 3" Mini Extreme & 6" Extreme Random Orbital Sander, with Hook Pad, Non Vac, Combo Kit 12,000 RPM, 3/16" Dia., Rear Exhaust
Dynabrade 56712 Round Switch - Bottom
Air Turbine Tools 201SV - 1/8" Straight Hand Tool Series, 65,000 RPM, 32160
Dynabrade 53048 1/4" Drill Right Angle, .4 HP, Rear Exhaust, 20,000 RPM
Dynabrade 52836 1/4" Drill, .4 HP, Rear Exhaust, 20,000 RPM
Dynabrade 51346 3" (51 mm) Dia. Locking-Type Disc Pad, Medium Density, 1/4"-20 Thread
Dynabrade 01464 Seal
Dynabrade 95398 Bearing
Dynabrade 78645 1/2" Dia. x 1-1/2" W x 1/8" Center Hole, Z/A, 60 Grit, 100/pack
Dynabrade 53072 1/4" Right Angle Drill, .4 HP, Rear Exhaust, 950 RPM
Dynabrade 11129 3/4" W x 7" L Thin Platen Pad 5-Pkg.
Dynabrade 01438 Spring 
