Bentonite clay.

Clay desiccant is also called montmorillonite desiccant, known as a green desiccant sachets product due to its absolute safety and 100% environmental friendliness. It is non-toxic and non-corrosive, containing no resolvable material or calcium chloride.

Uni-Pak clay desiccant is designed and produced based on “Unit” value according to the standards of DIN55473 and MIL-D-3464E. Topsorb has strict quality control for its adsorption capacity, strength, dust etc. With our own bentonite mine, the bentonite clay we use as absorbent has more than 95% montmorillonite in purity, much higher than other clay desiccant products at home and abroad. Its adsorption reaches 18%~20% at 40%RH. The package is Tyvek material which has excellent strength and tight structure to avoid damage and dust pollution.

Clay sachets complies with DIN55437 and MIL-D-3464E.


Clay Sachet Part Number
Part No. Unit Weight gms
Pcs/Carton Remarks
   1/6  6  1800  
 SUDB002603  1/3  11  1000  
   1/2  17  600  
 SUDB004610  1  33  400  
 SUDB005609  2  66  200  
 SUDB006604  4  132  120  
   8  264  60  
 SUDB008623  16  528  40  

  Bentonite clay’s main chemical component is montmorillonite, which is scalelike and with the color of white, grey, buff, pink, purple etc. It is a natural non-metallic sedimentary or volcanic mineral. The simplest chemical molecular formula of montmorillonite is Al2O3•4SiO2•3H2O, theoretically, it consists of SiO2(66.7%)、Al2O3(25.3%)、H2O(5%). However, its factual component is much more complicated. Montmorillonite produced at different places is quite different in its components. 

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Brownell ltd small 2           AGM