Activated Clay - DESICCANT REFILLS

Description

Activated Clay is a moisture-adsorbing material for compatible packaging and enclosure protection systems. It provides a mineral-based refill option where the application needs control of water vapour during storage or transport. Choosing it against the actual environmental conditions helps establish a practical and manageable moisture-control arrangement.

Desiccant clays attract water molecules to their internal and external surfaces. Common bentonite-based drying clays use a layered mineral structure to retain moisture. The exact composition and performance of the supplied grade should be confirmed for the application rather than inferred from the general material family.

Clay desiccants are used in protective packaging and small enclosures to help limit moisture-related deterioration. Their adsorption behaviour varies with humidity and temperature. For equipment exposed to changing environments, assess the expected conditions and required protection period before choosing clay in preference to another refill material.

Refill suitability also depends on the container that holds the material. Confirm the equipment’s approved media, retention method and required charge, particularly when replacing an existing desiccant type. Our technical team can discuss whether activated clay fits the intended duty and how the refill should be packaged and supplied.

Store unused material in closed packaging and open only the quantity needed for servicing. Follow the holder’s instructions for emptying and refilling, keeping the charge properly contained. Replacement and any permitted reactivation should follow guidance for the specific clay grade and the conditions encountered in the protected package or enclosure.

Clay desiccant performance and applications

The supplied Activated Clay reference uses bentonite clay with a layered, calcium-rich montmorillonite structure. Its internal and external surfaces bind water molecules while the desiccant remains dry and free-flowing, without an apparent change in size, shape or texture at full water-vapour capacity.

The reference data shows useful uptake at low humidity and increasing capacity as relative humidity rises. At high humidity, its moisture uptake is slower than the silica gel and molecular sieve references, which helps explain why time and handling conditions matter as well as total capacity.

Protective packaging for electronics and stored components is a useful application to assess for a compatible clay grade. The supplied Activated Clay sheet describes a broadly constant adsorption capacity at constant relative humidity between 20°C and 50°C, and reactivation for repeated use. Confirm these properties and any reactivation instructions for the actual refill supplied.

Reference performance graphs

These graphs show the reference material grades under the printed test conditions; confirm suitability for the refill grade being supplied. Click to view full size.