Our container desiccant is a high performance clay based desiccant capable of absorbing more than 70% of moisture relative to its weight (90% RH & 37ºC). This highly absorbent clay is activated by Calcium Chloride (CaCl2) to ensure this superior performance. The innovative design allows water vapor to enter the interior of the bag easily, where it is transformed into a mud like substance and will not leak, escape or spill. Welldry is specially formulated for use in shipping containers or general storage of larger areas.