Moisture Adsorbing Board (MAB)


The Moisture Adsorbing Board (MAB) is an alternative to the typical desiccant sachets where space is limited. Available in a sheet form, the MAB can be cut into any sizes to fit into confined spaces, preventing any contamination from desiccant dust.

Benefits of  Moisture Adsorbing Board (MAB)

  • Suitable for automatic filling in the packing process
  • Not water-soluble, corrosive, or deliquescent (dissolvable)
  • Easily fixed in place by mechanical retention
  • No dust produced as it is contained in a plastic sheet
  • Moderate to long term hygroscopicity (water-absorbing capacity)
  • Printable sheet surface
  • Can be cut or punched to produce specific shapes or sizes
  • 3D thermoforming (creating a specific shape) is possible
  • Uniform thickness and easy for packing
  • No loose desiccants from broken sachets/bags

The MAB is available in a standard sheet size of 295mm x 205mm x 1.6mm or in the dimensions of an A4 sh. The size and shape of the MAB can also be customized to meet your specific requirements.

It has an average adsorption value of 0.006 grams per cm2, to calculate the quantity of Moisture Adsorbing Board needed. Manufactured from polyethylene plastic with active silica gel, it has an operating temperature ranging from -40 ºC to 70 ºC.



  • Polymer: Polyethylene
  • Desiccant: Silica Gel (30%)
  • Operating Temperature: to -40oC to +70oC
  • Adsorption Capacity (Nom): 8% – 10% by weight at 50%rh at 22oC Adsorption Rate: 0.05 grams per 24 hours 


Key Features

Product Features

  • Optional Shapes and Sizes
  • Uniform Thickness
  • No Loose Desiccant
  • Can be Printed
  • Flexible / thermo-formable
  • Long term adsorption characteristic
  • Easy to fix by mechanical retention