Paper-backed abrasives (i.e., traditional sandpaper) are the most affordable abrasives and are available in a wide range of weights, from light and flexible to thick and tough. Weight grades A to C are best suited to hand sanding and the use of pressure-sensitive adhesives (PSA) or hook-and-loop discs, while grades D to G are strong enough for stroke or wide-belt sanding belts. Paper substrates are the lightest and most widely used. However, paper is also the weakest backing used for coated abrasives. Paper's lack of strength is offset by its affordability. Paper backings are recommended for light to medium sanding jobs on surfaces such as wood, textiles, and lacquers, as they provide a good finish while generating less friction and heat. Paper is ideal for flat sanding applications and generally provides the best finish for flat sanding jobs. However, paper supports tear ...

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 fo...

Incorrect Manufacturing process When belt joints are manufactured incorrectly, they can break. The manufacturer may not have used the correct heat setting when pressing the belts together to harden the belt, glue, and backing. Alternatively, the belt may not have been scuffed properly before gluing, meaning that a small part of the joint has not been sanded down to ensure a good bond.If a large number of belts from the same manufacturer break during use, it may be that a manufacturer's error is at the root of the problem. MOOSEFOS will provide our customers with a guarantee to replace your sanding belt with a new one in case of breakage. Too much pressure on the belt sander during use If you use your belt sander with too high or too low a tension pressure, you may experience tracking problems, belt bending, belt tearing, and joint failure. Belt is not running in the righ...