Sorbead® Air

Silica Gel

Sorbead® Air adsorbents (formerly known as KC-Trockenperlen) are comprised of alumino-silicate gel beads used in the drying of compressed air, technical gases and in power transformer breathers.

Three grades are available: Sorbead® Air R, Sorbead® Air WS and Sorbead® Orange CHAMELEON®. WS is a water stable grade often used as a guard layer in combination with other desiccants. CHAMELEON® is an indicating silica gel used for moisture sensitive applications, such as transformer air breathers.

Read the features and benefits section below for more information on this product range. Our technical sales team are here to help with your enquiry.


    • High performance alumino-silicate gel adsorbents.

    • Extremely high surface area.

    • Hard spherical beads with high crush strength.

    • Standard sphere sizes of 2.0-5.0 mm.

    • CHAMELEON® indicating silica gel, changing from orange to colourless.


    • Low regeneration temperature of between 120-150°C. Can offer a significant reduction in operating costs.

    • Long product lifetime.

    • Low attrition rate due to high crush strength.

    • Pressure dew point of -60°C can be achieved.

    • Patented Water Stable (WS) grade available which is commonly used as a guard layer in combination with Sorbead® Air R.

Typical Applications

    • Compressed air drying - thermal regeneration.

    • Technical gas drying (e.g. N2, O2, CO2).

    • Breathers for power transformers.