The Norton A275 No-Fil Adalox waterproof abrasive sheet is an open-coat, P-graded paper sheet, for less loading and a more consistent surface finish. This sheet is intended for use in dry finishing paints, metals, and wood.

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 stearate coating offers more durability over an uncoated abrasive while resisting chip loading. Stearated abrasives are non-pigmented to eliminate color transfer to the work surface. 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.

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.

Manufacturer	St. Gobain Abrasives
Part number	66261131631
Item Weight	18.1 g
Product Dimensions	28.7 x 23.62 x 4.83 cm; 18.14 g
Item model number	66261131631
Size	9" x 11"
Colour	Brown
Material	Aluminum Oxide
Item Package Quantity	1
Grit Number	150
Grit Description	150
Batteries included?	No
Batteries Required?	No

Norton A275 No-Fil Adalox Abrasive Sheet, Paper Backing, Aluminum Oxide, Waterproof, Grit 150, 9" x 11", (Pack of 100)

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