There are many invisible capillary pipes in the untreated stone. All kinds of water-borne and oily dirt can easily enter the stone through these pipes, or rust on the surface of building components, iron salt contained in the stone itself and calcium compounds in cement can seep out of the stone surface through these capillary pipes under the action of water, resulting in various "pathological changes", which need to be waterproof and antifouling Handle.

At the same time, the polished stone surface will slide when encountering water, and the friction coefficient of the wet stone surface may be as low as 0.2. It is not safe to walk on such wet and untreated stone ground, so anti-skid treatment is required. Because the stone in use is worn, the surface will appear scars and defects, which need to be renovated. Under the influence of various external factors such as ultraviolet, oxygen, water vapor, acid gas, various dust and external forces in the atmosphere, the stone in use appears the phenomenon of surface loss of light, wear and color darkening, which needs to be renovated and brightened. The color of dyed stone should be fixed and the color retention period should be extended as much as possible. The effect of stone decoration products should be as long as possible to reduce unnecessary labor and material costs and affect normal use. Therefore, in order to prolong the service life of stone, it is necessary to take proper care of stone.