Views: 0 Author: Site Editor Publish Time: 2025-12-04 Origin: Site
Cement board sanding is mainly classified according to sanding method, sanding accuracy, and sanding purpose. The core classification and characteristics are as follows:
Divided by sanding method:
Mechanical sanding (mainstream): By using a sanding machine combined with sand belts/grinding wheels for operation, it has high efficiency and good flatness. It can be divided into dry (with a lot of dust, requiring dust removal equipment) and wet (water jet sanding to reduce dust and make the surface more delicate), suitable for mass production.
Hand sanding: using sandpaper to manually polish, with high flexibility, suitable for repairing corners, irregular parts or small batches, but with low efficiency and difficult uniformity of flatness.
Classified by sanding accuracy:
Coarse sand (80-120 mesh): Remove burrs and floating slurry on the surface of cement boards, correct flatness deviations, and lay the foundation for subsequent processing.
Medium sand (150-240 mesh): Refines surface texture, improves hand feel, suitable for general decorative surfaces.
Fine sand (above 320 mesh): Obtaining a delicate and smooth surface, meeting high-precision requirements such as painting and veneering, commonly used in high-end decorative scenes.
Classified by sanding purpose:
Leveling and sanding: The core solution is to solve the problems of uneven thickness and surface roughness of the board, ensuring dimensional accuracy.
Surface sanding: Optimize surface texture, enhance decorative quality, and facilitate subsequent painting, pasting, and other processes.
Repair sanding: locally polish and repair defects (such as scratches and bubbles) on the board to ensure product qualification rate.
