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Norton K225 Metalite Abrasive Sheet, Cloth Backing, Aluminum Oxide

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Product Specifications
Fastening Type
Construction Type
Backing Type
Grit Material Type
Aluminum Oxide
Brand Name
Norton Abrasives - St. Gobain

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100 9" x 11" 50 B00295JVB8 yes $58.45 Buy Options
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150 9" x 11" 50 B00295X6EG yes $10.43 Buy Options
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280 9" x 11" 50 B0006NDQWK yes $85.35 Buy Options
320 9" x 11" 50 B0006NDQWA yes $80.80 Buy Options
40 9" x 11" 25 B004JHYYFW Usually ships in 3 to 5 weeks $33.47 Buy Options
400 9" x 11" 50 B00295V1R0 yes $68.31 Buy Options
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Key Features

  • P-graded aluminum oxide is tough and offers a very consistent scratch pattern for a high-quality finish
  • Aluminum oxide is durable and the most common abrasive grain
  • Cloth backing is stiffer, tougher, and thicker than a paper backing
  • Closed coat for a higher-quality finish than an open-coat sheet
  • For hand- or machine-sanding a wide variety of metals

Product Description

Norton Metalite K225 abrasive sheets have a durable P-graded aluminum oxide for a more consistent finish. These sheets are used for hand or machine sanding in general purpose metalworking applications such as light deburring, rust removal, and polishing.

Coated abrasives have individual abrasive grains spaced at a predetermined distance from one another. This is a closed-coat sheet. A closed coat covers 100 percent of the surface with abrasive grains, for more stiffness and better surface finish than an equivalent open coat, where abrasive grit covers 50 to 70 percent of the surface. The cloth backing is stiffer, tougher, and thicker than a paper backing. Cloth resists tearing while bending and flexing during use. This sheet features a resin bond. Resin bonds have good moisture resistance, are harder and less flexible than glue bonds, and have good heat resistance and grain retention. Resin bonds are useful for abrasive operations with high operating speeds, impact, and sudden loading, as the resin bond is strong.

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.

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