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 05530, Stikit Soft Hand Pad, 2-3/4 in x 5-1/2 in x 3/8 in, 7000028351
3M 04281 Scotch-Brite Surface Conditioning Belt, SC-BS, A/O Very Fine, 4 in x 132 in, 7010292398
3M 11411, Roloc Disc 361F, 50 YF-weight, TR, 1 in, Die R100N, 7000045095
Dynabrade 79171 1" W x 30" L 80 Grit Ceramic DynaCut Belt, 50/pack
Air Turbine Tools 310RSV - 1/4" Router Hand Tool Series, 25,000RPM, 33420
Dynabrade 11395 Guide Wheel
3M 20160, Scotch-Weld Epoxy Adhesive 1838, Green, Part A, 5 Gallon Drum (Pail), 7010309728
Dynabrade 95842 Dynabrade Air Lube 10W/NR, 1 Pint
Dynabrade 55501 .1hp Pencil Grinder, Twin Turbine, 100,000 RPM, Nickel-Plated Aluminum Housing, 3mm Collet
Dynabrade 95848 Dynabrade Gear Oil
Dynabrade 51705 .1 hp Straight-Line Pencil Grinder, Rear Exhaust, 50,000 RPM, 3/32" Collet
Dynabrade 51857 .7 hp Trim Router (Complete), 20,000 RPM, 1/4 Collet
Dynabrade 79174 2" W x 30" L 80 Grit Ceramic DynaCut Belt, 10/pack
3M 01326, PSA Cloth Disc 348D, P240 X-weight, 3 in x NH, Die 300V, 7000045069
3Mâ„¢ 72122, Portable Compressed Air Filter and Regulator Panel 256-02-01, 100 cfm, 8 outlets, with Carbon Monoxide Monitor, 7000052147, 1 EA/Case
ACS Diamond Cloth Belt, CX1250 1/2" X 18" 125U
Dynabrade 95675 1/4" Male Plug with 1/4" NPT Male Thread
Insize 7323-OTGC, ADAPTER FOR DATA OUTPUT CABLE, Type-C, one to one, 6928640396960
Dynabrade 51633 .1 hp Straight-Line Extension Pencil Grinder, Central Vacuum, 1/8" Collet
Dynabrade 51624 .1 hp Straight-Line Pencil Grinder, Central Vacuum, 35,000 RPM, 3mm Collet
Dynabrade 91427 1/4" W x 12" L 120 Grit A/O DynaCut Belt, 50/pack
3M 06580, Marine Adhesive Sealant 4000 UV, White, 295 mL Cartridge, 7000046623, 12/Case
3M 20730, PPS Series 2.0 Spray Cup System UV Kit, Standard (22 fl oz,
650 mL), 125u Micron Filters, 7100128906
Dynabrade 90631 3" W x 7-3/8" L 60 Grit A/Z DynaCut Belt, 10/ Pack
3Mâ„¢ 94275, Versafloâ„¢ Gold Coated Tinted Over-Visor with UV/IR Protection M-967N, 70071696879, 1 EA/Case
Dynabrade 51865 1.0 hp Trim Router (Complete), 20,000 RPM, 1/4 Collet
Dynabrade 53270 7" (180 mm) Dia. Right-Angle Disc Sander
3M 26130, PPS Series 2.0 Adapter, Type S35, 16 mm Female, 1.5 mm
Thread Stretched, 7100135926
Dynabrade 51623 .1 hp Straight-Line Extension Pencil Grinder, Central Vacuum, 1/8" Collet 
