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White Silica Gel Desiccant (25 lb. Bag)

White Silica Gel Desiccant (25 lb. Bag)

Part #: 1212021
Availability : Contact Us
100% Water-Resistant adsorbent




Sorbead™ WS

Water-Resistant adsorbent, also known as KC-Trockenperlen® WS

BASF Sorbead™ WS water resistant silica gel adsorbents have high capacity and protect other adsorbents and catalysts from water and moisture in a broad range of applications.

The patented BASF Sorbead line of highly efficient adsorbents are alumino-silicate gels in the form of hard, spherical beads, with a very high resistance to crushing and a low attrition rate. Sorbead adsorbents have a longer life than most other adsorbents and can reduce operating costs in most applications.

Sorbead WS is the only 100 % water-resistant adsorbent with a high adsorption capacity. It is most frequently used as a protective layer in combination with Sorbead R or other adsorbents such as molecular sieves, activated alumina, activated carbons and catalysts in order to increase the reliability of the system. The high capacity of Sorbead WS enables it to be used on a stand-alone basis as well.

With its high resistance against hydrothermal aging and low regeneration temperature, Sorbead WS is ideal for applications where adsorbent regeneration with humid gas occurs (e.g. Heat-of-Compression and Blower-Purge air dryers, air separation plants).


Silica Gel Desiccant is not affected by water and is therefore generally recommended as a buffer layer. It is far more resistant to fracturing than other silica gels. The adsorption capacity is slightly lower than SGA35 Silica Gel Desiccant but certainly high enough to be used as a primary desiccant for a complete bed in severe conditions.


Download Lubricant MSDS Download Desiccant Material Safety Data Sheet (MSDS)


  • Dewpoints to -80° F or lower
  • Smooth Beads/ Low Abrasion
  • Low Regeneration Temperature 250°-400° F
  • Uniform Size - Low Pressure Drop
  • High Adsorption Capacity
  • Longer Life -Lower Operating Costs

Typical Properties

Color White
Size 2.0 - 5.0mm
Surface Area 650m2/gram
Pore Volume 0.45 cm3/g
Bulk Density 48 lbs./ ft3
Attrition Rate Below 0.05%
Avg. Bead Size 3.5mm
Regeneration Temp. 250-400° F.
Equilibrium Adsorption Capacity @ Relative Humidity % (RH)
@ 10% RH
@ 20% RH 8.2
@ 40% RH 18
@ 60% RH 29
@ 80% RH 34