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Why Is Custom Sandpaper Commonly Used in Industrial Grinding? This is not because standard sandpaper is inferior, but because in industrial production, “standard” is inherently a compromise. The value of custom sandpaper lies in transforming sanding from an experience-driven craft into a data-driven precision manufacturing process.

Sanding the surface of furniture before painting directly affects the final finish’s texture and durability. If the surface isn’t sanded smooth, the paint will develop an orange peel texture; if it isn’t sanded clean, adhesion will decrease; and if it isn’t sanded thoroughly, rough spots will remain visible after painting, undoing all your hard work. Faced with these two common options—blue sandpaper and regular sandpaper—many people find themselves torn.

Curved surface polishing is one of the more challenging processes in fine sanding. The streamlined curves of automotive paintwork, the complex surfaces of model figures, and the rounded edges of furniture all face the same problem: how can high-grit sandpaper conform closely to curved surfaces without excessive cutting or damaging the original shape?

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.