What Are The Classifications Of Sandpaper?

In actual use, the classification of sandpaper is not uniform.

Sponge sandpaper

Suitable for grinding smooth parts, all kinds of materials can be used. The sponge sandpaper sanding process has the characteristics of high production efficiency, good surface quality and low production cost, so it is widely used in furniture production. The final surface quality of furniture products is closely related to the sanding process. Sponge sandpaper is the main tool in the sanding process.

Dry sandpaper

Dry sanding paper uses synthetic resin as a binder to bond silicon carbide abrasives on the latex, and is coated with an antistatic coating to make high-end products. It has the advantages of anti-blocking, anti-static, good softness and high wear resistance. . Available in a variety of fines, suitable for sanding metal surfaces, putties and coatings. Dry sanding paper is generally made of special kraft paper and latex paper, and natural and synthetic resins are used as binders. . Widely used in furniture, decoration and other industries, especially rough grinding.

Water sandpaper

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.

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.

Its characteristics are:

1. Adopt linkage production, high efficiency;

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

3. Water-resistant sandpaper is generally finer in particle size. The particle size of water-resistant sandpaper in my country starts from P80, and the fine particle size is connected with the grain of metallographic sandpaper.

4. Water-resistant sandpaper is generally sanded under water conditions, so there is less dust and good working conditions.

Dust-free sandpaper

The use of dust-free mesh sanding minimizes the risk of harmful particles from escaping.

Compared with traditional grinding materials, there is no clogging, this feature greatly prolongs the service life of the product; very little agglomeration, efficient dust collection fundamentally solves the generation of agglomeration; extremely high efficiency, greatly reduces sand The replacement frequency of discs improves work efficiency.