Three common desiccant groups
Silica gel is porous granular silicon dioxide that adsorbs moisture without becoming liquid. Activated clay (activated bentonite) is a processed natural mineral that also works through adsorption. CaCl2 (calcium chloride) is strongly hygroscopic and retains moisture as liquid or gel after absorbing sufficient water vapor.
These are general properties of the materials in the desiccant industry, not results from FUCACO-specific measurements or tests.
Desiccants are not always interchangeable
These materials are often used for different purposes: silica gel and activated clay are common in small sachets inside boxes, while CaCl2/MAXSORB is frequently supplied as hanging container bags for long journeys.
No single material suits every situation-the right choice depends on the shipment and packaging conditions.
See the full selection framework in Choosing desiccants for your goods and packaging conditions →FUCACO desiccant products
FUCACO's 2023 Company Profile shows all three material groups-silica gel, activated clay and MAXSORB/CaCl2-in small sachets and hanging container formats.