Adhesive discs lets you sand, grind, and deburr, quickly and easily. Pressure Sensitive Adhesive (PSA) sanding discs attach to your sander directly ‒ no fuss, no muss. These PSA sanding discs have an adhesive that firmly sticks to the backing pad to provide superb sanding for disc sanders, rotary sanders, or orbital sanders. PSA sandpaper is used for a variety of auto repair, floor sanding, and waterproofing applications. There are even PSA angle grinder discs for heavy-duty grinding as well. Zoro also has super selection of sanding belts, fiber discs, and quick change discs too.