Desiccant Refills

To maintain the efficiency of transformer breathers, it is recommended to replace desiccants when saturated. When the orange indicating silica gel within the breather reaches its saturation point, it should be refilled with a new desiccant.

The desiccant refills are available in various sizes, from 0.5 kg to 50 kg. An alternate solution is to use a desiccant reactivation unit, which can dry out and reuse the saturated desiccants.

  • Grain shape: Sphere
  • SiO2 content (%): 99 min
  • Bulk density (g/ ml): 0.7 min
  • Specific resistance (Ω • cm): 3000 min
  • Loss on drying (wt%): 2.0 max
  • Grain size: 2-4 mm beads
  • Equilibrium capacity for water vapour (wt%) at 25 °C
    • relative humidity 20%: 8 mins
    • relative humidity 50%: 20 mins
    • relative humidity 90%: 30 mins

Blue-Indicating ​

  • Odourless 
  • Non-corrosive
  • Changes from blue to pink when saturated
  • Non-dusting packing in Tyvek desiccant bags is available 
  • Works well for non-dusting packing for electronic equipment
  • Adsorb up to 40% of its weight in water


  • Odourless
  • Heavy metal-free
  • Non-corrosive 
  • Environmentally friendly 
  • Changes from orange to green when saturated
  • Adsorb up to 40% of its weight in water