500g Bottle of Color-changing Silica Gel 3-5mm Blue Silica Gel

Blue silica gel has the adsorption and moisture-proof effect of narrow pore silica gel, It is characterized by the moisture absorption process, it can become Light blue with the increase of moisture absorption, and finally become light red or light pink. It can indicate the humidity of the environment and also visually show whether a new desiccant needs to be replaced.

Blue silica gel is widely used in respirators, transformers, electrical cabinets, precision instruments, leather, clothing, household appliances packaging moisture-proof, can be used as a desiccant alone, can also be used with fine silica gel.