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 02140, Fibre Disc Backup Pad, TN Quick Change , 4-1/2 in x 5/8-11 Internal, 7000045746
Insize 7231, SCRIBER, 6928640320071
3M 07144, Inhalation Valve 6893/07144(AAD), System Component, 7000002049, 200 EA/Case
3M 26000, PPS Series 2.0 Spray Cup System Kit, Standard (22 fl oz, 650mL), 200u Micron Filter, 7100135954
3M 26018, PPS Series 2.0 Adapter, Type S11, 3/8 Male, 18 Thread NPS, 7100135942
3M 22972, Disc Holder Adapter 9, 5/8-11 External M10-1.50 Internal, 7000046095
3M 34672, 641WY, 1/2" X 64", 100 Mesh, Diamond Cloth Belts 7100111364
3M 65487, Pro Grade Precision Ultra Durable Universal Hole Sanding Disc, DUH560TRI-10T, 5 IN x UH, 60, 7100202913, 10 per pack
3M 65489, Pro Grade Precision Ultra Durable Universal Hole Sanding Disc DUH5120TRI-10I, 5 inch UH, 120, 7100202873, 10 per pack 
