1, ordinary sandpaper is commonly used to polish the rough surface, sponge sand is more suitable for surface grinding.

2, ordinary sandpaper is generally flake, sponge sand can be made into a variety of shapes and specifications.

Therefore, in summary, sponge sand is better than ordinary sandpaper and can replace ordinary sandpaper, so it is generally mainly used for hand-grinding furniture, surface polishing of plastic products, polishing of automotive maintenance and paint, metal rust and plastic surface treatment and other areas with high polishing requirements.