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.

3M 16359, Sensitivity Solution FT-11, Sweet, 7000029587, 6 ea/Case
3M 54928, Home Dust Mask 8661P5-DC, 7100159226, 5 Each/Pack
Dynabrade 01185 Vane Set (4pk)
Dynabrade 53533 Cone or Plug Grinder (Triple Extension)
3M 41597, Polyurethane Adhesive Sealant 560, Black, 310 mL Cartridge, 7100005901, 12/Case
Dynabrade 54705 Rotor/Vane Set
Dynabrade 15101 Tension Arm (for Mini Dynafile II)
Dynabrade 54972 Vane Set (5pk)
Dynabrade 11399 Type 27 Wheel Mounting Adapter Kit
Dynabrade 14230 Rubber Drive Wheel
Dynabrade 11352 Contact Wheel Ass'y, 5/16" Dia. x 5/8" W x 1/4" I.D., Crown Face, Steel
ACS CX1250 Diamond Belt, 1/2" X 24" 175u
Dynabrade 52474 Vane Set (4pk)
Dynabrade 07107 Vane Set (5pk)
Dynabrade 13509 Dynastraight Finishing Tool, Rear Exhaust, 6,000 RPM, 5/8" (16 mm) or 1" (25 mm) Dia. Arbor
3M 34030, Sanding and Fiberglass Respirator, 8200H3-DC, 7100155863, 3 Each/Pack
3M 87103, Cloth Belt 341D, 24 X-weight, 9 in x 20 in, Fabri-lok, Single-flex, 7010326200, 20 per case
Dynabrade 11005 Dynafile Belt Housing Guard
3M 91369, Lawn & Garden Valved Respirator 8511G2-DC-PS, 7100182264, 2 Each/Pack
Dynabrade 11004 Dynafile Screw-In Housing
Air Turbine Tools 310RSV - 6mm Router Hand Tool Series with Brake, 30,000RPM, 33435
Dynabrade 18570 Vane Set (4pk)
3M 08017, Marine Grade Silicone Sealant, White, 3 oz Tube, 7000120479, 6/Case
Dynabrade 95848 Dynabrade Gear Oil
Dynabrade 48520 2" Dia. Right Angle Disc Sander, Rear Exhaust, .4 HP, 12,000 RPM
Air Turbine Tools 2590DM - 1/4" Angle Hand Tool Series (Long Version, Front Exhaust), 40,000RPM, 35844
3M 98213, Sanding and Fiberglass Respirator N95 Particulate, 8200H40-DC, 7100159546, 40 Each/Pack
Dynabrade 64350 26" W x 36" L (660 mm W x 914 mm L) Metal Capture Downdraft Station, 230 V (AC)
ACS Diamond Cloth Belt, CX1250 3/8" X 120" 125U
Dynabrade 40320 Dynafile II Abrasive Belt Tool
3M 32441, Chemical Odor Valved Respirator, 8577C2-DC-PS, 7100189894, 2 Each/Pack
Dynabrade 95821 Dynabrade Air Lube 10W/NR, 4oz Bottle
Dynabrade 14360 Pneumatic Pipe Belt Finisher
3M 11412, Roloc Disc 361F, 36 YF-weight, TR, 1 in, Die R100N, 7000045092
Dynabrade 11684 Dynabelter Contact Arm Assembly 4" DIA X 5/8" W., 40 Duro Serrated
Dynabrade 78122 2" Dia. Medium NWN DynaBrite Locking-Type Disc, 25/pack 
