What is a clay desiccant?
Clay desiccants are made from montmorillonite clay which has a special affinity for moisture. Clay is a good basic desiccant that works satisfactorily below 120°F (approximately 50°C). Above 120° F, there is a possibility that the clay will give up moisture rather than pulling it in, so anticipated storage and transportation conditions should be considered. The upside to clay is that it is normally the least expensive desiccant per pound. Its appearance is that of small gray pellets.
