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SKU 7000118312
Legacy SKU 60070015684
UPC 00051144020171
Part Number 02017
Product Number 431Q

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.

  • 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
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On it's way to you October 10   


Minimum Order 250 Sheets
Order Increment 250 Sheets
  Immense Durability
  Reduces Abrasive Costs
  Lowest Price Per Item
Product Dimensions
Imperial Metric
Width 11 in 279.4 mm
Length 9 in 228.6 cm
Shipping Dimensions
Weight 15.5 lb
Length 12 in
Width 9.9 in
Height 6.9 in
Color Black
Grit 100


  1. What is 3M™ Wetordry™ Paper Sheet 431Q?

    3M™ Wetordry™ Paper Sheet 431Q is a premium wet sanding paper designed for automotive and woodworking applications. It features an abrasive surface that can be used with water or oil, allowing for consistent finishes.

  2. What are the dimensions of each sheet?

    Each sheet measures 9 inches by 11 inches and has a depth of up to .035 inches. The sheets have a C-weight backing, which makes them stable and durable.

  3. How many sheets come in each pack?

    There are typically fifty (50) sheets per inner pack, with five (5) inner packs included in every case. This gives you a total of two hundred fifty (250) individual pieces.

  4. Can this product be used on both painted surfaces and bare metals?

    Yes! These sandpaper sheets can safely be used on all types of surfaces - whether they're bare metal or painted over. Plus, their flexible design allows them to conform to curved or uneven areas more easily than other options might.

  5. Is there any warranty available for this product?

    We offer our customers the best possible quality when it comes to our products at all times; however -- like most abrasives -- this wet/dry paper doesn't usually include any warranties due to differences in application technique, user skill level etc.While we don't offer specific plans affording technical support after purchase, please don't hesitate reaching out if you'd ever run into trouble using these yourself!

For industrial/occupational use only. Not for consumer sale or use.
3M industrial and occupational products are intended, labeled, and packaged for sale to trained industrial and occupational customers for workplace use.  Unless specifically stated otherwise on the applicable product packaging or literature, these products are not intended, labeled, or packaged for sale to or use by consumers (e.g., for home, personal, primary or secondary school, recreational/sporting, or other uses not described in the applicable product packaging or literature), and must be selected and used in compliance with applicable health and safety regulations and standards (e.g., U.S. OSHA, ANSI), as well as all product literature, user instructions, warnings, and other limitations, and the user must take any action required under any recall, field action, or other product use notice.  Misuse of 3M industrial and occupational products may result in injury, sickness, death, or property damage.  For help with product selection and use, consult your on-site safety professional, industrial hygienist, or other subject matter expert.
3M™ Wetordry™ Paper Sheets

3M™ Wetordry™ Paper Sheets are a versatile abrasive product that can be used dry or with water. They are designed to prevent dust and debris from clogging the abrasive points, while producing a faster cut at the same time. These sheets are ideal for surfaces that tend to generate a lot of dust, such as paint and primer. They 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

Silicon carbide is a very hard mineral that is 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.

Waterproof Paper Backing

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.

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Lead times are estimates and may vary based on our suppliers' product availability.