The preservation of cultural relics is a very important subject nowadays. China is an ancient country with an ancient history and civilization, and its material cultural heritage is diverse, abundant and widely distributed. These precious cultural heritages are the carriers of information of ancient civilization, the material materials of great importance in history, culture, art and scientific research, the reference and source of scientific invention and technological innovation, and the basic resources for improving the material and spiritual living conditions of mankind.

Among all kinds of cultural relics, the weathering mechanism of stone cultural relics is more complex, including physical, chemical, biological and human effects. In view of the characteristics of stone cultural relics and the causes of weathering and alteration, the method of coating a protective film on its surface is adopted at home and abroad to protect stone materials. Mainly developed epoxy resins, acrylic resins, silicone materials and a variety of inorganic materials. Among them, silicone material has the most significant effect, and its structure is similar to the structure of stone cultural relics in addition to the general characteristics of polymer materials.

In addition, silicone materials also have high energy stability; Its chemical properties are between organic and inorganic, has good weather resistance, heat resistance, stain resistance, chemical resistance, water and flame retardant, has good stability to ultraviolet rays, ozone, compared with other materials more excellent "breathability", it does not damage or basically does not damage the permeability of cultural relics to air and water vapor.