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Dynabrade DynaCut Extreme 5 inch sanding disc uses premium P graded aluminum oxide abrasive, which delivers a fast cut so finish sanding and nibbing steps move quickly on the bench. The disc is made on a 3 mil high performance film backing that is extremely tough and tear resistant, helping discs survive edge contact and aggressive feathering without shredding. This film backing also generates very fine finishes, supporting consistent surface prep before coatings. The 400 grit specification targets fine sanding stages where you need scratch control rather than stock removal. A no hole design maintains full abrasive contact across the 5 inch disc surface, which benefits flat work on backup pads designed for solid discs. The orange disc is configured with pressure sensitive adhesive (PSA), so it stays fixed to vinyl face backup pads during use.
This Dynabrade aluminum oxide film sanding disc uses a pressure sensitive adhesive backing to mount directly to vinyl face backup pads, giving a full contact bond for stable sanding. The PSA layer is formulated to adhere firmly during operation, which maintains disc tracking and reduces slippage under load. When the abrasive surface is worn, the disc peels away from the pad cleanly, helping keep the pad face ready for the next disc without adhesive build-up. The 5 inch diameter is sized for typical 5 inch backup pads, and the no hole layout keeps the entire face usable on pads designed for solid discs. This construction supports a straightforward change-and-go workflow in both shop and jobsite sanding setups.
This 5 inch 400 grit PSA sanding disc sits in the fine sanding range, so it serves well where surface refinement is more important than aggressive leveling. The premium P graded aluminum oxide abrasive provides a uniform cut, which helps produce even scratch patterns that are easier to blend between steps. Because the disc is built on a 3 mil high performance film backing, it resists tearing at edges and joints, allowing operators to work close to profiles without the disc failing prematurely. That same film backing generates very fine finishes, which supports predictable results when moving into sealer or topcoat. The no hole configuration keeps full abrasive coverage on compatible pads, which is useful across flat panels or face frames where venting through the pad is not required.
This film backed sanding disc 5 inch design uses a proprietary clog free coating that creates a buildup resistant abrasive surface, letting the disc stay productive longer in dusty or resinous applications. Because the coating is pigment free, it reduces the chance of color transfer from the disc onto lighter substrates, supporting clean results on woods, primers, and solid colors. The extended disc life from this coating, combined with the tough film backing, can reduce the frequency of disc changes across a shift. The pressure sensitive adhesive backing adheres the disc firmly to vinyl face backup pads, providing a consistent interface and predictable feel during sanding passes. When the abrasive is spent, the clean removal of the PSA layer helps keep pads in service without time spent scraping adhesive, supporting efficient changeovers in repetitive finishing operations.
The Dynabrade DynaCut Extreme 5 inch sanding disc uses premium P graded aluminum oxide abrasive, giving a fast, consistent cut that supports efficient fine sanding stages.
The 3 mil high performance film backing is extremely tough and tear resistant, so the disc holds up near edges while generating very fine finishes for coating prep.
The proprietary clog free coating is pigment free and buildup resistant, helping the abrasive stay open longer and reducing disc changes during dusty sanding tasks.
The pressure sensitive adhesive backing adheres firmly to vinyl face backup pads, then removes cleanly when worn, supporting quick disc swaps and a clean pad face.
The no hole 5 inch design keeps abrasive across the entire disc face, which maximizes contact on compatible solid pads when sanding flat panels or components.
The 400 grit rating positions this disc for fine sanding and surface refinement, creating controlled scratch patterns suitable before sealer or topcoat steps.
The Dynabrade 91534 sanding disc pairs premium P graded aluminum oxide with a tough 3 mil film backing, giving fast cut with extended life in a 400 grit finish range. The proprietary pigment free clog free coating keeps the abrasive surface working longer by resisting buildup. With a pressure sensitive adhesive that bonds securely to vinyl face backup pads yet releases cleanly when worn, the disc supports an efficient sanding workflow. For fine sanding tasks that demand consistent finishes from a 5 inch no hole PSA disc, this aluminum oxide film option is built for repeatable shop or jobsite use.
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