3M™ Wetordry™ Paper Sheet 431Q, 9 in x 11 in 320 C-weight, 50/Pac, 500 ea/Case

3M™ Wetordry™ Paper Sheet 431Q features extra-fast cutting silicon carbide on a strong C-weight, waterproof paper backing to provide superior finishing for both wet and dry applications on a variety of substrates, including paint, primer, gel coat, metal, and wood.
Special Price $1.56 Regular Price $1.84
UPC 00051144106974
3M ID 7100027106
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Used dry or with water, 3M™ Wetordry™ Paper Sheets enable the user to rinse areas of the workpiece and the sheet during use to prevent dust and debris from clogging the points of the abrasive and reduce air-borne dust, while producing a faster cut at the same time. These versatile sheets are ideal on surfaces that tend to generate a lot of dust, such as paint and primer; and can also be used dry for finishing metal and gel coats. In the marine industry they are used for sanding old finishes, fine feather edging, and surface work. The standard 9 inch x 11 inch sheets can be cut to size for the application.

Silicon carbide is a very hard mineral characterized by sharp points that fracture easily, resulting in freshly exposed sharp edges that cut extra fast and produce a smooth, professional-looking finish. Silicon carbide products are commonly used for low-pressure applications such as paint prep and finishing on wood and metal. While the mineral has a shorter life than aluminum oxide, it produces a superior finish.

3M™ Wetordry™ products are backed with a proprietary waterproof paper backing that supports both wet and dry applications. Lighter weight than cloth and smooth rather than textured, paper backing is preferable for lighter applications such as finishing and paint prep. At the same time, many such applications produce a significant amount of dust, clogging the abrasive points and creating an inferior work environment. These effects can be minimized by sanding with water to rinse dust away from the workpiece and the abrasive surface.


  • Versatile sheet can be used wet or dry on paint, primer, gel coat, metal, and wood finishes
  • Waterproof backing supports wet applications for decreased loading and a faster cut
  • Strong C-weight paper backing provides durability for either hand or machine sanding
  • Silicon carbide mineral produces a smoother finish than aluminum oxide
  • Sheet is standard 9 x 11 and can be sized according to task
More Information
3M ID 7100027106
Keywords paper sheet, wet or dry, WetorDry, 431Q
Global Product Hierarchy Abrasives > Abrasive Sheets & Rolls > Sandpaper Sheets & Rolls
Abrasive Material Silicon Carbide
Application Deburring, Finishing, Surface Preparation
Backing Material Paper
Backing Weight C Weight
Color Family Black
Grit 320
Product Color Black
Product Number 431Q
Product Type simple
Quantity 0
Trademark 1 3M™
Trademark 2 Wetordry™
Country of Origin United States
Sales Unit EA
SAP Shelf Life In Days 3650
Base - Billing Unit EA
Base - Customary Height Dimension 11
Base - Customary Length Dimension 0.3
Base - Customary Width Dimension 9
Base - Metric Gross Weight 14.197 G
Base - Metric Height Dimension 27.94 CM
Base - Metric Length Dimension 0.762 CM
Base - Metric Width Dimension 22.86 CM
Base - Item Quantity 1
Base - Unit EA
Unit of Use - Billing Unit EA
Unit of Use - Customary Cubic Dimension 29.71856337413462 ci
Unit of Use - Customary Gross Weight 0.03129902736238707 lbs
Unit of Use - Customary Net Weight 0.03129902736238707 lbs
Unit of Use - Customary Height Dimension 11.0 in
Unit of Use - Customary Length Dimension 0.3 in
Unit of Use - Customary Width Dimension 9.0 in
Unit of Use - Metric Cubic Dimension 0.487 CDM
Unit of Use - Metric Net Weight 14.197 G
Unit of Use - Metric Height Dimension 27.94 CM
Unit of Use - Metric Length Dimension 0.762 CM
Unit of Use - Metric Width Dimension 22.86 CM
Unit of Use - Item Quantity 1
Unit of Use - Total Unit Quantity 1
Unit of Use - Previous Packaging Level Quantity 1
Unit of Use - Item Unit SHTS
Unit of Use - Unit EA
Inner - Billing Unit EA
Inner - Customary Cubic Dimension 77.92671097153217 ci
Inner - Customary Gross Weight 1.6770564284403637 lbs
Inner - Customary Net Weight 1.5649513681193534 lbs
Inner - Customary Height Dimension 9.251968503937007 in
Inner - Customary Length Dimension 11.259842519685039 in
Inner - Customary Width Dimension 0.7480314960629921 in
Inner - Metric Cubic Dimension 1276.99 CCM
Inner - Metric Net Weight 709.85 G
Inner - Metric Height Dimension 23.5 CM
Inner - Metric Length Dimension 28.6 CM
Inner - Metric Width Dimension 1.9 CM
Inner - Item Quantity 50
Inner - Total Unit Quantity 50
Inner - Previous Packaging Level Quantity 50
Inner - Item Unit SHTS
Inner - Previous Packaging Level Unit SHTS
Inner - Unit PAK
Shipper - Billing Unit EA
Shipper - Customary Cubic Dimension 1019.0926208624071 ci
Shipper - Customary Gross Weight 17.40108635425239 lbs
Shipper - Customary Net Weight 15.65061599250446 lbs
Shipper - Customary Height Dimension 8.937007874015748 in
Shipper - Customary Length Dimension 11.968503937007874 in
Shipper - Customary Width Dimension 9.527559055118111 in
Shipper - Metric Cubic Dimension 16699.936 CCM
Shipper - Metric Weight 7.893 KG
Shipper - Metric Net Weight 7.099 KG
Shipper - Metric Height Dimension 22.7 CM
Shipper - Metric Length Dimension 30.4 CM
Shipper - Metric Width Dimension 24.2 CM
Shipper - Item Quantity 500
Shipper - Total Unit Quantity 500
Shipper - Previous Packaging Level Quantity 10
Shipper - Previous Packaging Level Unit PACK
Shipper - Item Unit SHTS
Shipper - Unit CS
Pallet - Billing Unit EA
Pallet - Customary Cubic Dimension 83663.55315387796 ci
Pallet - Customary Gross Weight 1214.7470646386755 lbs
Pallet - Customary Net Weight 1064.1669303211604 lbs
Pallet - Customary Height Dimension 41.338582677165356 in
Pallet - Customary Length Dimension 48.031496062992126 in
Pallet - Customary Width Dimension 42.125984251968504 in
Pallet - Metric Cubic Dimension 1.371 M3
Pallet - Metric Net Weight 482.698 KG
Pallet - Metric Height Dimension 1.05 M
Pallet - Metric Length Dimension 1.22 M
Pallet - Metric Width Dimension 1.07 M
Pallet - Item Quantity 34000
Pallet - Total Unit Quantity 34000
Pallet - Previous Packaging Level Quantity 68
Pallet - Previous Packaging Level Unit BOX
Pallet - Item Unit SHTS
Pallet - Unit PAL
Pallet - Pallet Layer Quantity 4
Pallet - Shipping Container Per Layer Quantity 17
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