- Cut sheets are a smaller size to conveniently use with hand sanding blocks
- Water-based stearate coating resists loading for extended abrasive life
- P-graded aluminum oxide is tough and offers a very consistent scratch pattern for a high-quality finish
- Open coat sheet construction means that the sheet is more flexible and resistant to clogging than a closed coat sheet
- Lightweight paper backing conforms to the workpiece
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Norton A290 No-Fil Adalox Abrasive Cut Sheet, Light Weight Paper Backing, Aluminum Oxide
|Price:||$16.00 - $37.50|
|Brand Name||Norton Abrasives - St. Gobain|
|Grit Material Type||Aluminum Oxide|
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The Norton A290 No-Fil abrasive sheet is coated with No-Fil stearate for more durability over an uncoated abrasive while resisting chip loading. The lightweight backing conforms to the workpiece. This sheet is a good choice for hand-sanding soldered and welded areas, as well as all other dry metal finishing operations.
Coated abrasives have individual abrasive grains spaced at a predetermined distance from one another. This is an open-coat sheet. An open coat covers 50 to 70 percent of the surface with abrasive grains, for greater flexibility and clog resistance than a closed coat, which covers 100 percent of the surface. An open coat allows for longer usage time because it clogs less, while a closed coat offers a finer surface finish than an equivalent open-coat abrasive. The paper backing is flexible, and offers a more consistent finish than a cloth or fiber backing, while being thicker and more durable than a polyester film backing. Stearated abrasives are non-pigmented to eliminate color transfer to the work surface. Vacuum sheets attach to a vacuum system that clears chips and dust away from the workpiece and sander operator without interruption. Use this sheet with a sanding block that comfortably fits to hand. Use a soft sanding block for flexibility and conformability on contoured surfaces or a firm block on flat surfaces.
Aluminum oxide is a widely used and versatile abrasive material. It is a tough, fracture- and wear-resistant grit that works well with a broad range of materials, from metals to wood. Aluminum oxide is more durable than silicon carbide and often used for material removal and finishing. P-graded abrasive grains are held to a closer tolerance than non-P-graded abrasives, which means that they offer a more consistent surface finish.
Abrasives are used for a variety of applications from shaping a part to fine finishing, depending on the grit size. Low grit numbers like 40 are coarse and are used for removing excess material and shaping a part. High grit numbers like 400 are fine and help to create a smooth surface finish.
Norton Abrasives manufactures a wide variety of sanding, grinding, and polishing abrasives, and has been located in the United States since 1885. In 1990, Saint-Gobain purchased Norton, keeping its manufacturing facilities and offices in the same location. Norton/Saint-Gobain has been recognized as a Global 100 Sustainable Company, as well as earning ISO 9000 and 14001 certification for quality and environmental management standards.