The Norton Stick & Sand aluminum-oxide coated abrasive disc has a PSA mounting system for quick disc changes when used with a random orbit sander. The pressure-sensitive adhesive (PSA) coating makes it quick and easy to attach and change the sandpaper disc. The aluminum oxide grit is one of the most common choices for general purpose grinding of wood, metal, fiberglass, and plastic and is more durable than silicon carbide grit. The abrasive has been treated with a water-based zinc stearate coating that prevents clogs from forming and can be used in wet sanding applications. The disc has a closed coat, which extends the abrasive's life, maximizes material removal, and achieves finer finishes on metals and hard materials than an open coat. The closed coat is 100 percent covered with abrasive grains and is only recommended for use with non-clogging materials. The paper backing conforms to contours and delivers a more consistent finish than fiber or cloth backings. The backing is made from C-weight paper, which offers a balanced combination of strength and flexibility.