ProductionShop Premium 400 Grit PSA Gold Longboard Sandpaper Roll, 2-3/4" Wide Continuous 12 Yard Roll. This high-performance film-backed longboard sanding sheet roll has a PSA pressure-sensitive adhesive backing and an easy-to-peel-off backing liner to protect the adhesive backing. These PSA sanding sheets securely attach to a wide variety of tools, including pneumatic air file sander shoes, firm or flexible longboard file boards, hand sanding blocks, Dura blocks, and more. Exceptional Sanding Performance: These premium-quality abrasive sanding sheets contain super-coated aluminum oxide corundum fused with zirconia alumina. These open-grain abrasive discs deliver a fast, exceptionally long-lasting sharp cut with a consistent scratch pattern. The discs are also highly resistant to clogging and loading, increasing productivity and reducing material consumption. Multiple Usage Applications: These long-lasting, durable sanding sheets are suitable as workhorse sandpaper for a wide range of industries and applications. They are ideal for use in auto body repair and paint shops, metalworking shops, woodworking shops, the marine industry, drywall installations, industrial manufacturing, and more. They are also ideal for household sandpaper for home and craft project sanding. Full Range of Sanding Grits: These premium PSA gold sanding sheets are available in variety packs with multiple grits and separately in a full range of sanding grit grades from coarse to extra-fine: 40, 60, 80, 100, 120, 150, 180, 220, 240, 320, 400, 500, and 600. ProductionShop offers a professional product line of high-quality sandpaper types that provide exceptional sanding performance, allowing you to get the job done fast, saving you time and money. ProductionShop Premium 400 Grit PSA Gold Longboard Sandpaper, 2-3/4" Wide Continuous 12 Yard Roll - Self Adhesive Stickyback for Autobody Paint, Wood Air File Long Board Sanders, Hand Sanding Blocks