Physical cleaning method for stone care

1. Although the low pressure water spraying is low in efficiency, the water flow is moderate and easy to control, but it is easy to cause the damage of stone and building metal parts or wall soaking and the growth of microorganisms, plants and animals.

   
   

2. High pressure water spray has the characteristics of high efficiency and low cost, and it is difficult to control the use. Strong pressure is easy to cause damage to the edges and corners of the stone, and it can not be used for cleaning stone relics and artworks in general.

3. Water vapor jet, atomized water spray and other ways of cleaning efficiency is relatively low, in practical application is not used much, mainly for some stone cultural relics, small precious handicrafts of dirt cleaning.

4. Ion injection method: this method belongs to dry cleaning, the use of quartz powder, natural fine sand, corundum powder, glass beads, calcite powder, etc., through high pressure airflow will be sprayed to the stone surface, but this method also damage the stone surface, so it is generally only used in special aspects.

5 Laser cleaning: the use of laser beam cleaning stone surface attachments, time-saving, waterless, safe, but because of the cost is too high, rarely used in stone decoration engineering.

6. Shot blasting cleaning: by mechanical throwing metal particles, inorganic non-metal particles, to remove the dirt on the stone surface, suitable for outdoor large structures, not suitable for decorative stone.