Our silica gel blue beads and crystals are a semi-transparent, glassy material containing cobalt (a heavy metal salt) indicator. Dark blue silica gel beads indicate that they are free from moisture. The beads change colour from dark to light blue upon absorbing small amounts of moisture and turn pink after absorbing a large amount. A pink colour indicates that the gel beads have reached their capacity, and it's time for replacement. The indicating properties of blue silica gel beads make them suitable for sealed vessels; they are primarily used as an indicator to show the moisture level in a sealed container. Depending on the user's application, Silica gel is available in crystals and beads. They are available in different sizes, in mm and mesh, with high absorption capacity.
Silica gel blue beads in loose form are applied in various industries - industrial gas drying, compressed air drying, seed and flower drying, hearing aid industries, and other various applications as a perfect solution for moisture.
