For a more perfect clear coat finish, 3M is offering its new Purple Finishing Film Discs, which are specially formulated with a coating that levels surface defects, requires less buffing and rework and reduces pigtails. The 3M Purple Finishing Film Discs are available in three-, five- and six-in. discs in 600, 800, 1000, 1200 and 1500 grit. A six-in. disc also is available in a dust-free version.