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Many operators believe that since they look similar, using them interchangeably won’t cause any major issues. However, in reality, these two types of sandpaper belts differ completely in terms of base material, adhesive, and abrasive grain arrangement. Using the wrong one is not just a matter of wasting the belt—the real cost lies in scratched workpieces and damaged equipment. Therefore, understanding the differences between them is the first step in avoiding these problems.

In automotive bodywork and painting, as well as mechanical sanding operations, if the pneumatic sandpaper used with pneumatic sanders loses grit or sheds backing, it not only affects surface quality but also reduces work efficiency. Identifying the underlying causes is a crucial step toward improving these conditions. Below, the DMS editorial team provides an analysis of the causes.

In machining and surface finishing, the correct selection of sandpaper type, grit size, and grinding process directly impacts workpiece quality and production efficiency. Below, the DMS editorial team provides selection recommendations for four common materials—wood, metal, plastic, and fiberglass—to help you better understand machine-use sandpaper.

From April 13 to 15, 2026, the Auto Maintenance & Repair Exhibition will be held at the Beijing Capital International Convention & Exhibition Center. DMS will showcase its automotive body and paint grinding product series at Booth B1-F27, presenting a comprehensive grinding solution covering the entire process from coarse grinding and primer sanding to paint finish refinement.

Many car owners may not know what grit to start with when using wet sandpaper for paint restoration, scratch removal, or fixing orange peel texture. If the grit is too coarse, it can easily sand through the clear coat and damage the original paint. if it’s too fine, it won’t remove the imperfections, resulting in a waste of time and materials. Below, the DMS editorial team will explain the correct starting grit and sanding sequence for different paint issues.

While dry-grit and wet sandpaper may appear similar, they actually have distinct characteristics. Choosing the wrong type can directly negatively impact grinding results, workpiece surface quality, and overall production efficiency. How do you make the right choice? The DMS team is here to help.