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The 3M 7000118549 Microfinishing Film Disc 366L is a coated abrasive disc designed for precision surface finishing across a wide range of materials. It uses micron-graded aluminum oxide abrasive bonded to a durable polyester film backing, delivering a fast cut rate and a consistent, uniform finish. The Hookita hook-and-loop attachment system allows quick disc changes during multi-step finishing workflows. At 5 inches in diameter and rated to 12000 RPM, this disc suits both production and detail finishing work on wood, plastic, fiberglass, metal, and coated surfaces.
This disc is suited for surface preparation and finishing applications including paint prep, primer sanding, e-coat, corrosion removal, coating removal, and work on solid surface composites. The load-resistant coating helps maintain cut performance by reducing clogging from dust and debris, making it effective in continuous-use finishing environments. Trades and technicians performing bodywork, woodworking, composite fabrication, or metal finishing will find this disc applicable across multi-grit progressions.
Designed for use with 5 inch hook-and-loop random orbital sanders and disc finishing tools that accept Hookita-style backing. Compatible with multi-step finishing systems on wood, solid surface composites, plastic, fiberglass, metal, and painted or coated substrates.
Align the disc firmly to the hook-and-loop pad before powering the tool. Confirm the sander or grinder is rated for 12000 RPM or lower before mounting the disc. Inspect the disc for tears or worn abrasive before each use and replace if backing integrity is compromised. Use appropriate respiratory protection when sanding coated, composite, or metal surfaces.
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