3M Microfinishing PSA Film Type D Disc 366L is rated Best in the 3M Microfinishing line of film backed discs. It features micron-graded aluminum oxide abrasive bonded to a durable polyester film backing to produce a fast cut-rate and uniform finish on wood, solid surface composites, plastic, fiberglass, paint prep, coating and corrosion removal, primer, e-coat, or metal.

• Precision, micron-graded aluminum oxide abrasive offers a fast cut, long life, and uniform finish on many substrates
• Open coat construction provides aggressive cut and reduced loading
• Load-resistant coating prevents dust and debris from clogging the disc