The Scotch-Brite™ Roloc™ Surface Conditioning Disc's open web fibre runs cool and resists loading while the abrasives provide a high cut-rate to give you consistent finishing. The 3M™ Roloc™ Attachment System offers quick and easy disc change-outs, making the Scotch-Brite™ Roloc™ Surface Conditioning Disc ideal for a range of tasks including blending, deburring, and finishing. This disc is available with silicon carbide or aluminum oxide abrasive mineral. Silicon carbide is a synthetic mineral that is very sharp and commonly used for low-pressure applications such as paint prep and finishing. Aluminum oxide is a hard, blocky mineral that provides high cut-rate and long life. While silicon carbide breaks down faster than aluminum oxide, it produces a finer finish.