Product Details
3M™ Paper Sheet 346U measures 9" x 11" and features 36 grit aluminum oxide abrasive grains. Constructed with a durable paper backing, it is suitable for coarse sanding while maintaining flexibility for use on curved surfaces. The aluminum oxide mineral provides hard, long-lasting sharp points on the abrasive grains, extending the sheet's lifespan compared to natural abrasives like emery or garnet. The sandpaper employs an open-coat construction that spaces out abrasive grains to reduce dust buildup, preventing clogging and prolonging usability, especially when sanding soft materials. This paper sheet is ideal for blending joints in wood and metalworking, as well as prepping metal surfaces prior to painting. It is commonly used across industries such as cabinetry, custom woodworking, millwork, furniture, metal fabrication, and primary wood and panel processing. The product complies with industry standards to ensure consistent performance and reliability. Warranty terms apply as specified by 3M.








