Ruby Silica Gel, also known as Purple Silica Gel, is a cobalt-free color-indicating desiccant composed primarily of silicon dioxide (SiO₂). It changes color from ruby red (or purple) to orange as moisture is absorbed, providing a clear visual indication of the adsorption status. With excellent moisture adsorption performance, it is widely used for industrial drying, equipment protection, packaging and humidity monitoring applications.

Color-Indicating Silica Gel(Blue To Pink), Cobalt-Free Blue Silica Gel, Customization

Available Indicator Types
Orange → Colorless(White)
Orange → Green