Moisture Adsorbing Board (MAB)


The Moisture Barrier Bag (MAB), is an alternative solution used in replacement of the typical desiccant sachets where space is limited. Provided in a sheet-form, the MAB can be cut into any size to fit into confined spaces to prevent any contamination from desiccant dust.

Suitable for automatic filling in the packing process

  • Not water-soluble, corrosive, or deliquescent (dissolvable)
  • 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 of a specific shape) is possible
  • Easily fixed in place by mechanical retention
  • No dust produced as it is contained in a plastic sheet
  • Uniform thickness and easy for packing
  • No loose desiccants from broken sachets/bags

It is available in a standard sheet size of 295mm x 205mm x 1.6mm or in the dimension of an A4 sh. The shape and size of the MAB can also be customized according to your specific requirements.
To calculate the quantity of MAB required, the typical absorption rate of the MAB is given at 0.006 grams per cm2.
Manufactured from Polyethylene plastic with active silica gel, the standard operating temperature of the MAB ranges between -40 ºC to 70 ºC.

Custom Moisture Adsorbing Board for Limited Space Applications

The formation of condensation in the air is one of the significant causes of damage to products, system failures, and a dramatic reduction in reliability and performance of the environmentally vulnerable medical equipment, electronic circuits, and devices. When space is limited, the moisture adsorbing board offers an ideal alternative to regular desiccant absorbent sachets or bags—manufactured in sheet form, which enables easy cutting in different required sizes.

MAB also prevents the loss of desiccant dust and contamination, resulting from the broken or damaged desiccant sachets or bags. The moisture absorber maintains a clean and dry external environment. The moisture adsorbing board is available in sheet form and can be customized in varying thicknesses depending on its application.

Quality Desiccant Sheets from Streampeak

Streampeak a supplier of packaging solutions, catering to the needs of a broad range of industries. Moisture solution that helps in prolonging the life of sensitive electrical and medical equipment. Due to the long-term absorption capabilities and quality of fitting into tight spaces, a moisture adsorbing board is an alternative to traditional desiccant bags or sachets. Customized MAB available to different requirements.

Call us to discuss your requirements. Our packaging engineers will be more than happy to help!



  • 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