Humidisorb Plus X-Corrode Packets provide moisture and corrosion control in electrical and electronic enclosures. Humidisorb is a self-regenerating desiccant that can absorb and release enormous quantities of moisture from surrounding air without becoming saturated. When first placed in service, a packet of granules will begin rapid absorption of moisture.

The packet will absorb at least five to ten times more moisture than the conventional desiccant before coming to equilibrium with the relative humidity (RH) of surrounding air. This will usually take several weeks to occur, even in very humid environments. During periods when the enclosure RH is lower than its long-term average the packet releases moisture in vapor form. The moisture desorption process cannot wet the air above its average RH level.

When enclosure RH tends to rise above its average level, the packet absorbs moisture. By absorbing moisture when the RH rises, and releasing some of the vapor phase moisture (regenerating) when the RH drops, the packet maintains a constant RH within the enclosure that is equal to the long-term average humidity.

Note: Humidisorb Plus X-Corrode Packets contain the same amount of X-Corrode volume coverage as our discontinued X-Corrode only packets. If using for X-Corrode only, you can expect the same uninterrupted protection.


  • Economical
  • Easy installation
  • Helps improve safety of personnel and equipment


  • Self-regenerating
  • Five to ten times greater moisture absorbing capacity than ordinary desiccants such as silica gel
  • Effective in frequently opened enclosures
  • Backed with self-adhesive mounting tape
  • High dielectric strength
  • Non-toxic