Cloth / fabric-backed abrasives are typically found on belts, although some sanding discs and sheets are available in cloth. They may be made from natural woven fibers (e.g., cotton) or synthetic fibers (nylon, polyester, rayon). Like paper, they come in different weights/thicknesses and varying degrees of flexibility and sturdiness. Your weight options are:

• JF- most flexible, making it a good choice when you’re sanding more detailed surfaces and profiles.
• J- made from a durable yet flexible cloth (e.g., denim) that can produce good results on both hand and machine sanding projects.
• X- stiff and sturdy cotton that is suitable for heavy machinery.
• YY- rugged polyester backing that’s strong enough to remove extra stock.

Abrasives with a more lightweight and flexible cloth backing are recommended for finishing work while those made from heavier fabrics are designed for use under high pressure, as well as for harder surfaces like metal. Unlike paper-backed abrasives, cloth or fabric backings can also be used for wet polishing.

Being more durable than paper, cloth-backed abrasives are generally more expensive, but they are worth the investment because they last longer and can be used in aggressive applications that include continual bending and flexing. The lifespan of coarse cloth or fabric abrasives can be extended further with regular cleaning. Unlike paper belts, you can wash cloth belts with soap and water to clean off resin.

1. Advantages

Tear resistant

Can be used with oil and grease

Available in a wide variety of weights

Can be cleaned with soap and water

2. Disadvantages

More expensive than paper

3. Usages

Hard surfaces like metal

Applications that require a flexible abrasive that will not tear

High stock removal