Sandpaper has many uses in daily applications, but today we focus on the following aspects.
1. Polish the board
There are two common types of board sandpaper: dry sandpaper and water sandpaper. Dry abrasive paper is suitable for hand sanding, while water abrasive paper can be used in water, suitable for large areas and rough surfaces.
When selecting board sanding paper, it is necessary to select the appropriate type, particle size, substrate and abrasive according to the specific application scenario and processing requirements.
When the board is polished, the choice of sandpaper should be determined according to the specific process requirements. For example, when sanding solid wood white, 180#~240# sandpaper can be used. For the sanding of the splint or primer, 220#~240# sandpaper can be used. Smooth primer grinding, you can choose 320#~400# sandpaper. The last primer or finish polishing, generally choose 600#~800# sandpaper. When polishing the finish paint, 1500#~2000# sandpaper can be used.
In addition, safety should also be paid attention to when sanding, such as avoiding injury to fingers. In order to ensure the quality of grinding, it is necessary to train, assess and manage grinders.
2. Polishing treatment
In the polishing process, fine-grained sandpaper is generally used, because fine sandpaper can be polished more finely, making the surface smoother. Under normal circumstances, you can choose 800 mesh, 1000 mesh, 1200 mesh, 1500 mesh, 2000 mesh and other specifications of sandpaper for polishing, of which 2000 purpose sandpaper is the smallest.
When choosing polishing sandpaper, it should be determined according to the specific situation. For example, if the surface is rough, it can be polished with coarse sandpaper first, and then polished with fine sandpaper; If the surface is smooth, it can be polished directly with fine sandpaper.
3. Defect treatment
For flaw treatment, fine-grained sandpaper is generally chosen, because fine sandpaper can better polish and smooth the surface to achieve the purpose of removing defects.
Specifically, sandpaper of 800 mesh, 1000 mesh, 1200 mesh and other specifications can be selected for defect treatment. When used, the appropriate sandpaper should be selected according to the degree of the defect and the surface material, and the obvious defects should be polished with a thicker sandpaper first, and then gradually use fine sandpaper for polishing to achieve better results.
Please note that when using sandpaper for blemish treatment, it must be gentle and careful to avoid excessive sanding or causing new damage. At the same time, you should also pay attention to protect your safety and avoid causing harm.
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