The 3M Wetordry Sandpaper Sheet 431Q features sharp silicon carbide abrasive on a durable C weight paper backing, delivering consistent cutting performance on wood, plastic, metal, and other surfaces. Designed for wet or dry use, it provides smooth, reliable results whether you're finishing, polishing, or preparing surfaces.
The silicon carbide mineral is harder and more aggressive than aluminum oxide, making it ideal for fine finishing applications where precision and surface quality matter. The flexible C weight paper backing conforms to contours and is easy to handle for extended sanding tasks.