Coated Coating Non-Coated Silica Gel Desiccant 3-5mm Eco-Friendly Color-Change Silicone

Co-free color-changing silica gel, also known as orange color-changing silica gel or indicator silica gel, is a type of color-changing silica gel made from fine-pored silica gel by dyeing with an inorganic salt mixture. It changes color after absorbing moisture, allowing for observation of saturation. It is orange before absorption and turns dark green upon saturation. After the silica gel reaches saturation, it can be placed in a microwave oven or oven to be reused.