136 Green ALO Pro Abrasive is a cost-effective product, made of high quality aluminum oxide grain, soft latex paper and strong phenol resin. The hook & loop backing makes disc changes fast and easy, meaning that you can use the disc again and again for the extent of the abrasive life. It is excellent for blending and finishing on aluminum and carbon steel, as well as woodworking applications for heavy and medium stock removal and finishing on hardwoods, softwoods, and composites. Our clean sanding discs also work well on primer, paint, sealers, topcoats, fiberglass, and plastics.