Scotch-Brite™ Surface Conditioning Disc comes in a wide variety of grades and sizes and is an ideal first step for cleaning, blending, deburring, and finishing. Durable, nonwoven fiber construction conforms well on irregular or contoured surfaces without undercutting or damaging the base material. The Scotch-Brite™ Surface Conditioning Disc uses aluminum oxide abrasive. Aluminum oxide is a popular choice among industrial professionals because of its cut rate and long life. This mineral is a tough, durable abrasive that self fractures to expose fresh cutting edges in use, whereas traditional abrasives, such as garnet, quickly wear down with use. Due to its high cut rate, hardness, strength, and low heat retention, aluminum oxide mineral is widely used in grinding applications in addition to sanding and finishing use.