Abrasive Discs

Abrasive Disc Backing

There are also multiple options available when choosing the backing material for abrasive discs. Paper is the least expensive backing material, but isn’t known for its durability. A cloth backing, which often consists of cotton, is the better choice for more aggressive metal grinding or sanding applications. Fiber backings, which may consist of cellulose fibers or treated cotton, are typically tougher than cloth backings, although the fiber material tends to curl when working in humid conditions. Backings containing various combinations of these materials are also available.

Other Key Abrasive Disc Characteristics

Whether you buy abrasive sanding discs online or in person, you will need to consider a number of additional product features when making your selection:

• Size: Abrasive metal sanding discs for sanding and grinding applications are typically available in diameters ranging from 2” to 20”.
• Grit:  An abrasive disc’s grit size refers to the number of sharp particles per square inch on the material. Larger grit sizes have more sharp edges and will produce a smoother surface when sanding. Materials featuring smaller grit sizes are coarser, making them better for heavy sanding and stripping applications.
• Dust Repellence: Certain sanding and grinding applications produce high volumes of dust. You can buy discs containing thousands of small holes that enable the material to act as a dust-repellent vacuum.
• Pattern: Different types of discs can produce different sanding patterns. Discs made from high-quality materials typically create a more even, uniform sanding pattern than those of lesser quality.
• Center Holes: Some sanding/grinding machines contain mandrels that require the use of abrasive discs containing holes in the center. Discs are also available without center holes.

Shop A Wide Selection of Sanding Discs

Regardless of what type of sanding or grinding application you face, National Abrasives, Inc. is your source for top quality discs you can count on to get the job done. As one of the top abrasive disc online dealers, we have the right discs for removing paint, preparing wood and metal surfaces for painting, removing rust, polishing surfaces and more. Sandpaper Discs are also available in a wide range of backing materials, sizes and grits to meet your specific requirements.

Why Choose Us?

National Abrasives, Inc. is a family owned and operated supplier of unique products for the metal finishing industry. As a family-focused company, superior customer service is the primary focus of our business. You’ll also benefit from competitive pricing that will help keep your operating costs low. Free shipping for purchases over $300.

Browse our current selection of high-quality abrasive discs for sale and place your order online today!