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Water sandpaper Jun 22, 2018

Water sandpaper

Also known as water-resistant sand paper or water sandpaper, it is named because it can be immersed in water when used or polished in water. The water-resistant sandpaper is based on water-resistant paper or paper that is treated and resistant to water, and paint or resin is used as a binder. A grinding tool made of a corundum or silicon carbide abrasive that is firmly adhered to a substrate has two shapes, a sheet shape and a roll shape. In accordance with the abrasive can be divided into: brown corundum sandpaper; white corundum sandpaper; silicon carbide sandpaper; zirconium corundum sandpaper and so on. According to the binder can be divided into: ordinary binder sandpaper; resin binder sandpaper. 

The texture of water sandpaper is finer. The water sandpaper is suitable for grinding some fine-textured materials and is suitable for post-processing. The gap between the grit of water-abrasive paper is smaller, and the grinding ground is also smaller. When used with water, The crumbs will come out with the water, so use it together with the water. If you take the water sandpaper dry, the crushed will stay in the gap of the grit, so that the surface of the sandpaper will be lighted so that it will not reach its original effect. Sandpaper is not so inconvenient. Its large gap between the sand grains is also larger. It will fall out during the grinding process due to large gaps, so it does not need to be used with water.

Its characteristics are:

1. The use of linkage production, high efficiency;

2. As the water-resistant sandpaper uses varnish as a binder, the drying time is longer, and the drying method generally adopts hanging drying;

3. Water-resistant sandpaper generally has a fine grain size. The grain size of China's water-sandpaper is started from P80, and the fine-grained grain is connected with the grain-fair of metallographic sandpaper.

4. Water-resistant sandpaper is generally polished under water-containing conditions, so less dust and better working conditions.