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3M™ Wetordry™ Paper Sheet 431Q

Products
  • 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
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Overall Width (Imperial)
Overall Width (Metric)
Overall Length (Imperial)
Overall Length (Metric)
Grit
Products Available
Available options:
 Overall Width (Imperial), Overall Width (Metric), Overall Length (Imperial), Overall Length (Metric), Grit and Micron Grade
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Specifications
Attribute Name
Value
Application
Deburring, Finishing, Surface Preparation
Application Category
Adhesives, Blending/Deburring, Coatings, Finishing/Polishing, Sealant Corrosion Removal
Backing Material
Paper
Backing Weight
C Weight
Brand
Wetordry™
Coat Type
Closed Coat
Color
Black, Black
Equipment - Machines
Hand Sanding
For Use On
All Metals, Paint
Grit
100, 120, 150, 180, 240, 320, 400, 60, 80
Industries
Composite, Marine, Metalworking, MRO, Paint Preparation
Micron Grade
100 μm, 120 μm, 150 μm, 180 μm, 240 μm, 60 μm, 80 μm
Mineral Type
Silicon Carbide
National Stock Number
5350015169015, 5350015251494, 5350015263246
Net Weight (Imperial)
12.14 lb, 13.25 lb, 14.15 lb, 15.5 lb, 18.15 lb, 18.35 lb, 23.35 lb
Net Weight (Metric)
10.59 kg, 5.51 kg, 6.01 kg, 6.42 kg, 7.03 kg, 8.23 kg, 8.32 kg
Overall Length (Imperial)
11 in, 9 in
Overall Length (Metric)
228.6 cm, 279.4 mm
Overall Width (Imperial)
11 in, 9 in
Overall Width (Metric)
228.6 mm, 279.4 mm
Position
Better
Product Form
Sheet
Sub Industries
Sub Applications
Substrate
All Metals, Paint
US Govt Contract Number
GS-21F-0075x
Wet or Dry
Wet
Product Details
  • 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

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.

3M™ Wetordry™ Paper Sheet 431Q
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.

Lighter weight than cloth and smooth rather than textured, paper backing is preferable for lighter applications such as finishing and paint prep.
Our 3M™ Wetordry™ products are backed with our 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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