Silica gel is a reusable desiccant which can be used to lower the relative humidity of an enclosed environment to below 40%. This is effective at preventing forms of moisture damage such as; mould, condensation & rust. Although silica gel still works at temperatures of up to 65°C, it is more efficient at room temperatures of 20‐35°C. In ideal conditions, silica gel can adsorb up to 40% of its weight in moisture before reaching its adsorption capacity and requiring replacement or regeneration. Silica gel is non-deliquescent, so even when saturated with moisture, its outer surfaces stay dry and remain in a solid form.

Our blue silica gel beads contain a moisture indicating solution which gives them a dark blue appearance when dry. As the silica gel adsorbs moisture, its colour gradually changes from blue, to purple and eventually turns pink. In this state, the silica gel is close to its moisture capacity, and should be replaced or regenerated. The regeneration process is simple and can be done by heating the beads in an oven or a microwave (read regeneration instructions below).

Features

  • Contains a blue moisture indicator which changes colour to pink once saturated
  • Lowers relative humidity in enclosed environments to 35-40%
  • Prevents moisture damage, such as condensation, mould & rust
  • Adsorbs up to 40% of its weight in moisture before reaching its adsorption capacity
  • Beads stay dry and remain free-flowing, even when saturated with moisture
  • Reusable; easily regenerate by heating in any standard oven
  • Non-corrosive with a low dust emission rate making it safe for use with sensitive items
  • Inert, odourless and non-toxic
     

Applications

  • Compressed air dryers
  • Gas drying
  • Transformer breathers
  • Electrical enclosures
  • Electronics
  • Non-consumable packaged items
     

Reactivation Instructions

  1. Spread silica gel on an appropriate metal or glass oven-proof tray – try to keep the silica gel layer to a thickness of less than 2 inches (5cm).
  2. Place in a 105°C -125°C oven for approximately 2-3 hours.
  3. Once regenerated, remove from oven and leave out until cool enough to handle.
  4. Store silica in a sealed container until ready to use again.
     

 

Specifications


SKU SBBL
Desiccant Silica Gel
Bead Diameter 3-5 mm
Type Indicating
Colour Blue - Pink
Indicating Dye 0.5% Cobalt Chloride
Reusability Reusable
Shipping Weight 1.0000kg

(SBBL)

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