Cargo dry pak is specially formulated desiccant product, designed to lower the dew point inside shipping & storage container by lowering the dew point. Cargo dry pak protects cargo from moisture damage while goods are in transit.active substance calcium chloride bentonitehigh absorption capacity, more than 100 of own weight high rate of absorption at all levels of humidity above 40 not prone to exhaustion at extreme events. Self limiting absorption rate. Does not reevaporate moisture once absorbed nontoxic, safe with food products and environmentally safe. Easily mounted and mechanically protected fits into wall corrugation suitable for all applications in shipping containers