Sponge sand, also known as sponge sanding block, or sponge sand brick, is a kind of abrasive, compared with ordinary sandpaper, sponge sand is not based on paper or cloth as an abrasive carrier, but the abrasive plant on the sponge or on the TPU, which is the main difference between sponge sand and ordinary sandpaper, in addition to the two have the following differences:
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.
Ordinary sandpaper is usually a thousand grinding, sponge sanding block can absorb water, water resistance is better, dry grinding, wet grinding can be.
Sponge sand
Plain sandpaper
With the invention and application of sponge sanding block , more and more occasions began to use sponge sandpaper, then sponge sand can replace sandpaper?
Sponge sand and ordinary paper sandpaper, one is a layer of abrasive planted on the paper, the other is a layer of abrasive planted on the sponge or TPU, it can be said that sponge sand is an upgrade of ordinary sandpaper, relatively speaking, sponge sand is more durable than ordinary sandpaper, more soft, better draft effect, and because the sandpaper is sponge, So the grinding pressure is very good, the force will be very uniform, although the grinding efficiency and ordinary paper sandpaper is about the same, but the grinding feeling is better than the paper sandpaper, and the same thickness of the sponge sand is better than ordinary sandpaper.
The biggest advantage of sponge sand is that the surface treatment effect is better than that of ordinary sandpaper under the same abrasive and particle size, and the cutting degree and durability of sponge sandpaper are higher than that of traditional abrasive cloth sandpaper.
Remove rust from metal with sponge sand
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.
