What is water abrasive paper?

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What is water abrasive paper?
Also known as water-resistant sandpaper or water-resistant sandpaper, it is named because it can be immersed in water or sanded in water. A kind of abrasive tool made of corundum or silicon carbide abrasives firmly adhered to the substrate, and its shapes are sheet-like and roll-like. According to the abrasive points, it can be divided into: brown corundum sandpaper; white corundum sandpaper; silicon carbide sandpaper; zirconium corundum sandpaper, etc. According to the binder, it can be divided into: ordinary binder sandpaper; resin binder sandpaper. [2]
The texture of water matte sandpaper is relatively fine, and water matte paper is suitable for polishing some things with finer texture, and it is suitable for post-processing; water matte sandpaper has a small gap between the sand grains, and the grinding powder is also small, when used with water The powder will flow out with the water, so it should be used together with water. If the water sandpaper is used for dry grinding, the powder will remain in the gaps between the sand grains, making the surface of the sandpaper brighter and thus unable to achieve its original effect. Sandpaper is not so troublesome. The gap between the sand grains is large, and the grinding powder is also large. During the grinding process, the small powder will fall off due to the large gap, so it does not need to be used with water.