Uses of sandpaper

Sandpaper is a material for grinding. Sandpaper is used to grind metal and wood surfaces to make them smooth and clean. Sandpaper is usually made of various abrasive grit glued on the base paper. 

Different models mean that the thickness of the sandpaper surface is different, and different models are used in different places. 400/P800, 600/P1200, 800/P2400, represent the particle size of sandpaper, the larger the number, the smaller the abrasive particles, that is, the finer the touch, the smaller the scratch on the workpiece.

The choice of sandpaper does not matter much whether the material is soft or hard, it must go through the process of rough grinding, fine grinding, polishing and corrosion. 

Generally choose 1‎00, 200, 400, 600, 800, 1000, it is fine, if one or two types are missing in the middle, it is not relevant. The spring steel is harder and should be better ground, because the softer ‎The easier the material is to form scratches. Sandpaper consists of dry sandpaper and water sandpaper.

 We generally choose water sandpaper, but you can choose according to your own situation. The brand of sandpaper is very important. When choosing the sandpaper, look at the thickness of the sandpaper. It must not be too thin, as well as the firmness and uniform distribution of the sand.