To maintain the efficiency of transformer breathers, desiccant refills are available for replacing saturated desiccants. When the indicating silica gel changes colour from orange to green, it’s time to replace it with desiccant refills, available in sizes from 0.5kg to 50kg. An alternative to replacing the desiccants is the desiccant reactivation unit, which can dry out and reuse 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

 Orange-Indicating

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