Character: 
The purple-red color-changing silica gel is purple-red color when dry, gradually turns orange-red after moisture absorption, and light orange upon full saturation. Can easily check its moisture saturation by observing color changes. The product is cobalt-free, environmentally safe, chemically stable and highly adsorptive.

Use: 
This product is mainly used for drying and indicating the saturation level of the desiccant, as well as the relative humidity of the internal space medium of precision instruments and meters, and for moisture protection of regular packages and instruments and meters. It can be used alone as desiccant, or combine with fine-pore silica gel.