Blue silica gel is divided into blue plastic indicator, color changing silica gel and blue plastic, the appearance of blue or light blue glassy particles, according to the shape of the particles can be divided into two kinds of spherical and massive, with silica gel absorption of moisture, and With the increase of moisture absorption, its color changes from blue to purple, and finally to light red, which indicates both the humidity of the environment and visually shows whether there is still a moisture-proof effect.
1. Mainly used for moisture absorption and rust prevention under the confined conditions of instruments, meters, and equipment.
2. Use with ordinary silica gel desiccant to indicate the degree of moisture absorption of the desiccant and determine the relative humidity of the environment. As a silica gel desiccant for packaging, it is widely used in precision instruments, leather, clothing, food, medicines and household appliances.