High Teck GREEN Abrasive Sanding Disc is a cost-effective product made with high-quality aluminum oxide grain, flexible latex paper, and a strong phenol resin. The PSA backing makes disc changes quick and easy. Designed to provide excellent blending and finishing on aluminum and carbon steel, High Teck GREEN works well for heavy- and medium-duty applications on hardwoods, softwoods, and composites. High Teck GREEN works well on primer, paint, sealers, topcoats, fiberglass, and plastics.