Scotch-Brite(TM) Hookit(TM) Production Clean and Finish Disc delivers high cut, long life, a fine finish, and is effective for conditioning aluminum, stainless steel, plastics, wood, and fiberglass. The disc is designed for fine finishing, paint prepping, and scratch blending, and conforms well to irregular surfaces for a clean, consistent finish without undercutting or damaging the base material.