Classification of Sandpapers

Sandpaper is an indispensable thing, and it has wide applications. It is indispensable for various mold models such as mobile phones, automobiles, and wood products. Moreover, sandpaper also plays an important role in the coating construction process. Sandpaper is generally divided into dry sandpaper, water sandpaper, and sponge sandpaper. What they have in common is the use of adhesives to bond different abrasives and sandpaper substrates together.

1. Sponge sandpaper

Sandpaper sponge is the main tool of the sanding process, suitable for sanding smooth parts, and all kinds of materials are available. The sponge sandpaper sanding process has the characteristics of high production efficiency, good surface quality, and low production cost. Therefore, it has been widely used in furniture production. The surface quality of furniture products is closely related to the sanding process.

2. Water sandpaper

The sand material of water sandpaper is generally silicon carbide, and the paper base is usually kraft paper. There are also relatively high-end, such as 3M water sandpaper, many of the paper base is latex paper. Latex paper is characterized by good flexibility and stronger surface adhesion of the sand particles, so the sandpaper is more durable, the particles are more uniform, and the polishing effect is better.

The gap between the sand grains of water sandpaper is smaller than that of dry sandpaper, and the debris of the ground is also smaller. When used with water, the debris will flow out with the water, thereby maintaining the sharpness of the surface of the sandpaper. If the water sandpaper is used for dry grinding, the product debris will adhere to the gap between the sand grains, so that the surface of the sandpaper loses its sharpness and has no grinding power. So it can't reach its use effect. Water sandpaper is used in stone polishing, hardware processing, mold processing, wall putty polishing, automobile surface polishing, rust removal, paint removal and other industries.

3. Dry abrasive paper

Dry sanding paper uses synthetic resin as a binder to bond silicon carbide abrasive to latex, and is coated with an antistatic coating to make a product. It has the advantages of anti-clogging, anti-static, good flexibility, and high abrasion resistance. A variety of finenesses are available, suitable for sanding metal surfaces, wood surfaces, putties and coatings. Dry sanding paper is generally made of special kraft paper and latex paper, natural and synthetic resins are used as binders, and manufactured through advanced high-static sand planting technology. This product has high grinding efficiency and is not easy to stick to chips. It is suitable for dry grinding.

Dry sanding paper has a large gap between the sand grains, and the grinding debris is also large. It does not need to be used with water because the debris will fall off due to the large gap during use. The sand is generally high-quality silicon carbide, and the paper base is generally latex paper, so it has better flexibility and better heat dissipation during use, and it is not easy to cause clogging. Dry sandpaper is used in wood processing, stone processing, precision mold polishing, synthetic material processing and other industries and types of work, as well as in furniture, decoration and other industries.