What Is The Difference Between Water Sandpaper And Dry Sandpaper?
1) Sandpaper based on water-resistant paper or treated water-resistant paper is called waterproof sandpaper. Usually, paint or resin is used as a binder to firmly adhere the abrasive (corundum or silicon carbide abrasive) to the substrate. Dry sandpaper is made by bonding abrasives (silicon carbide) to latex with synthetic resin as a binder and coating it with an antistatic coating.
2) The gap between the sand grains of the water-grinding sandpaper is small, and the powder produced by grinding is also small. When it is used with water, the powder will flow out with the water, and it is usually used with water sanding; Due to the large gap between the sand grains, the dry sandpaper will produce a large amount of dust; during the grinding process, the dust will fall due to the large gap, so it does not need to be used with water.
3) Water sandpaper grinds slowly, but it grinds brighter. The finer the water sandpaper grinds, the slower and smoother it is; the dry sandpaper grinds faster, but the grind is coarser, and the coarser the dry sandpaper grinds. Faster and thicker.
4) Waterproof silicon carbide paper is used to polish more advanced paint, and thousand-grit sandpaper is used to polish metal products, putty, and coating.
5) The water sandpaper is finer, and the back is paper; the dry sandpaper is thicker, and the back is cloth.
When it is used, which one is better, water sandpaper or dry sandpaper?
There are many differences between water sandpaper and dry sandpaper. There is no saying which kind of sandpaper is better. The choice is mainly based on the grinding material and job requirements: if you want to polish a little and don't mind the slow grinding speed, water sandpaper is better; If there are many materials to be ground and the speed needs to be fast, it is more recommended to use dry sandpaper, or first use dry sandpaper to grind, and then use water sandpaper to polish.
Can water sandpaper be used for dry grinding? As the name suggests, water sandpaper is polished by water grinding. Usually, it is soaked in water or polished in water. So, is water sandpaper dry grinding?
Water sandpaper can also be dry-grinded, which is generally not recommended, mainly because if the water sandpaper is dry-grinded, the debris will remain in the gaps between the sand grains, making the surface of the sandpaper smooth and failing to achieve its proper grinding effect; Dry sanding with water sandpaper will cause faster damage to the water sandpaper and affect its service life, so dry sanding with water sandpaper is not recommended.
