What are the differences between dry sanding and wet sanding?

BINIC ABRASIVE INDUSTRY Co., Ltd./ Shanghai Bangjia Industrial Co., Ltd. is a factory specializing in the production of coated abrasives. Generally speaking, many friends unable to choose sandpaper for abrasive tools correctly. Sandpaper is divided into dry sand and water sand. We will guide you how to choose the right sandpaper  and how to use wet and dry sandpaper from the follow perspective:

  • The materialof dry and wet sand
  • The production process ofdry and wet sand
  • The Characteristicsof dry and wet sandpaper.
  • The applicationof dry and wet sandpaper.

The Material of Dry Sandpaper

First of all, let’s take a look at the material composition of dry sandpaper. Dry sandpaper is a product made by adhering silicon carbide abrasives to latex with synthetic resin as a binder and coating them with an antistatic coating. The main base is generally using latex paper, which has better flexibility, better heat dissipation, and is not easy to cause clogging. They are usually coarse and medium grit sandpaper.

The Production Process of Dry Sandpaper


Raw material → vibrating feeder (removing soil waste) → coarse crushing → medium and fine crushing → screening (screening large aggregates) → sand making → screening (screening small aggregates) → dust removal→ Powder selection→ Finished sand→ Glue->Paper base→ Finished dry sandpaper. Because there is a lot of dust in the production process of dry sandpaper, the fine powder can be recovered by dust removal and powder separator.

The Characteristics of Dry Sandpaper

Dry sandpaper has a large gap between the sand grains, and the grinding debris is also large. During the use process, the debris will fall off due to the large gap, so it does not need to be used with water.

The main advantages of dry sandpaper are:

  • Anti-clogging
  • Anti-static
  • Smooths rough material quickly
  • Good softness
  • High wear resistance

The disadvantages of dry sandpaper

  • It has heavy dust pollution
  • Needs to wear appropriate protective equipment during operation.

The Applications of Dry Sandpaper

Dry sandpaper is widely used in wood processing, stone processing, precision mold grinding, synthetic material processing and other industries and types of work. Binic provide finest sandpaper for wood. It is widely used in furniture, decoration and other industries, especially in wood processing and mold grinding industries.

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The Material of Wet Sandpaper

Then we continue to introduce our wet sandpaper, wet sandpaper is also called water sandpaper, water-resistant sandpaper, that is sandpaper that can be sanded with water. The abrasive material of water sandpaper is generally silicon carbide, and the paper base is usually kraft paper. They are usually high grit sandpaper.

The Production Process of Wet Sandpaper

Raw material → vibrating feeder (removing soil waste) → coarse crushing → medium and fine crushing → screening (screening large aggregates) → sand making → screening (screening small aggregates) → sand washing machine→finished sand → glue → paper base → finished water sandpaper. Compared with dry sand making, you will find that there are only slight differences in the processing process, that is, the sand washing machine is used to replace the powder separator and dust collector.

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The Characteristics of Wet Sandpaper

The gap between the sand grains of the wet sandpaper is smaller than that of the dry , and the debris of the ground items is also small. It will flow out with water, so as to keep the sharpness of the sandpaper surface and the service life is longer.

The main advantages of wet sandpaper are:

  • Reducing a lot of dust in the process
  • Produces super smooth finish, product is cleaner and of better quality.

The disadvantages of wet sandpaper are:

  • A large amount of lubricant (usually water) are required.
  • Lower yields.
  • Takes more time.

Generally, the grinding operation is performed under water conditions, so there is less dust and better working conditions.

The Applications of Wet Sandpaper

Waterproof paper abrasive paper is widely used in stone grinding, hardware processing, mold processing, wall putty grinding, sandpaper for car paint, rust removal, paint removal and other industries.

Final Thoughts

The above is the specific introduction of dry sandpaper and wet sandpaper. You can choose suitable products according to different usage scenarios. It is better to use dry sanding paper for wood works. However, if you need to sand finer car surfaces, it is better to choose water sandpaper for metal. BINIC ABRESIVE INDUSTRY Co., Ltd.: Coated abrasives manufacturers, your best choice.