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 53533 Cone or Plug Grinder (Triple Extension)
Dynabrade 55500 .1hp Pencil Grinder, Twin Turbine, 100,000 RPM, Nickel-Plated Aluminum Housing, 1/8" Collet
Air Turbine Tools 310RDM - 1/4" Router Hand Tool Series, 30,000RPM, 33432
Dynabrade 64350 26" W x 36" L (660 mm W x 914 mm L) Metal Capture Downdraft Station, 230 V (AC)
3M 94702, Cubitron ll Cloth Belt 947A, 120+ X-weight, 1/4 in x 24 in, Fabri-lok, Single-flex, 7100141686, 200 per case
3M 45020, Diamond Grade DG3 Reflective Digital Sheeting 4081UDS, Fluorescent Yellow, 30 in x 50 yd, 1 Roll/Case, 7100282390
3M 26016, PPS Series 2.0 Adapter, Type S9, 16 mm Male, 1.5 mm Thread, 7100135330
3M 21543, Scotch-Brite Roloc Clean and Strip XT Pro Extra Cut Disc, TR, 2 in x NH, A XCS, 7100179815, 60/box
Dynabrade 92019 1" Dia. x 2" W, 36 Grit, Z/A DynaCut Band, 10/pack
Air Turbine Tools 310RSV - 6mm Router Hand Tool Series, 30,000RPM, 33431
3M 26130, PPS Series 2.0 Adapter, Type S35, 16 mm Female, 1.5 mm
Thread Stretched, 7100135926
3M 01328, PSA Cloth Disc 348D, P180 X-weight, 3 in x NH, Die 300V, 7000045068
Dynabrade 40610 Electric Dynafile II Abrasive Belt Tool
3M 97421, Aluminum Foil Tape 3380, Silver, 72 mm x 45 m, 3.25 mil, 7010375681
3M 19773, Utility Cloth Sheet 314D, 9 in x 11 in P60 X-weight, 7000000360 
