2023 International Carbon Materials Conference & Exposition to be held in Shanghai

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...

Proper storage of abrasives is essential to ensure that they work at their best and last longer. Otherwise, their performance and lifespan can suffer. In this article, we will explain the best way to store abrasives, using sanding belts as an example. It is recommended to store abrasive materials within a temperature range of 60°F-80°F while maintaining an ideal relative humidity of 45%. The level of relative humidity is a crucial factor in abrasive storage, as issues may arise when it fluctuates. For instance, the humidity levels in heated rooms tend to drop by approximately 15% at the beginning of the heating season while it goes up to 80% or even more after extended periods of rainy or foggy weather. If it's difficult to maintain ideal temperature and humidity conditions, ensure that coated abrasives are stored away from concrete floors, heaters, hot air ducts, and da...