Silica gel is applied as a desiccant and used to control moisture and humidity levels in a spectrum of applications. Its primary function is to adsorb and retain airborne or contact-surface moisture. This serves to prevent the growth/progress of mold/mildew, corrosion, and other moisture-related damage issues in products. There are several forms of silica gel, generally considered as indicating and non-indicating varieties. Indicating silica gel undergoes color changes, often from blue to pink, as the indicator chemical additive absorbs the moisture. Non-indicating silica gel doesn’t change color but adsorbs moisture equally effectively. Silica gel is manufactured in a range of particle sizes and shapes for specific applications.