Scotch-Brite™ light grinding and blending disc uses a ceramic abrasive grain blend to achieve a high cut rate for optimal weld grinding and blending in mild steel applications. In these instances, light grinding and blending discs are designed to effectively blend and refine a grade 36 scratch or finer. Additionally, light grinding and blending discs can often single handedly prepare surfaces for painting, where a 3 mil or greater paint thickness is being applied, without adding a final dual action sanding step. 3M™ ceramic aluminum oxide abrasive blend is a ceramic mineral designed using a proprietary process to enhance toughness and hardness of the grain for a higher level performance. 3M™ ceramic aluminum oxide abrasive is engineered to fracture frequently and surpasses aluminum oxide abrasives in both cut rate and durability. Perfect for moderate to heavy stock removal as well as finishing, ceramic abrasives are built to cut fast and handle intense heat and stress applications. Scotch-Brite™ abrasives are unique surface conditioning products with abrasives incorporated into non-woven fiber matrix. Combining abrasives and non-woven material creates an abrasive system that delivers consistent results for the life of the product. The open web material runs cool and is load resistant, which keeps the abrasive minerals cutting at high performance by limiting clogging of the fibers. 3M™ offers a complete line of hook and loop style 3M™ Hookit™ discs for work spaces where adhesive backed discs may become contaminated by dust, dirt or flying debris. Scotch-Brite™ 7000046246, Right Angle Super Duty, 4 in Diameter Disc, Coarse Grade, Aluminum Oxide Abrasive