The 3M 431Q Wet or Dry Sandpaper Sheet features sharp, fast-cutting 180 grit silicon carbide mineral for effective material removal and smooth surface preparation. Measuring 9″ x 11″, this medium-coarse abrasive sheet is ideal for applications on metal, composites, plastics, wood, and painted surfaces. Whether you’re sanding by hand or with a block, its waterproof design makes it suitable for both wet and dry sanding, helping to minimize dust and improve surface clarity.
Engineered with a tear- and moisture-resistant paper backing, the 431Q sheet offers durability, flexibility, and long-lasting use, even under pressure. Perfect for auto body prep, woodworking, or industrial finishing, this sandpaper delivers uniform results and is a go-to choice for professionals and DIY enthusiasts seeking dependable performance.
