Prosorb Humidity Control Cassettes
Humidity control cassettes from Prosorb present an easy way of maintaining a stable relative humidity level in display cases and cabinets.
Supplied as a complete unit, the prosorb cassettes require no additional containers or trays. Pre-filled with Prosorb beads, the cassettes are constructed from a sturdy polypropylene case with vapour permeable non-woven polyester panels.
The enclosed Prosorb beads will absorb and desorb water vapour, as appropriate, to stabilise the humidity.
Available in 2 sizes - Half Cassette and Full Cassette
Preconditioned to control relative humidity (RH) to 50%. Specs
Size: Half Cassette
Length: 335 mm
Width: 110 mm
Height: 24 mm.
Contents: 500 g beads. One half-size cassette will be sufficient for 0.7 m3 depending on circumstances of application.
Size: Full Cassette
Length: 335 mm
Width: 110 mm
Height: 44 mm.
Contents: 950 g beads. One or more full-size cassettes per cubic metre of air volume are required depending on circumstances of application Resources
Free of chlorides: PROSorb contains no lithium chloride, as some do (Lithium chloride is a chemical – salt, potentially harmful to many metals. This salt can be transferred to metals in dust or by human touch). PROSorb consists of 97% SiO2 and 3% Al2O3.
Low abrasion: PROSorb beads produce less dust than other silica gels (abrasion< 0,05 weight-% according to MIL-D).
High bulk density: 1 kg PROSorb only needs a volume of ca. 1,5 l (much less than some other silica gels).
Long term stability: PROSorb maintains the greater part of its capacity well beyond the 2-5 years when other silica gels have lost a large portion of their capacity.
Economical: PROSorb is much cheaper than the sold for the same purpose.
Temperature dependency: PROSorb is conditioned in relation to temperature. PROSorb reacts in the same way organic materials do. Therefore there will be no, or little, transfer of water vapour between organic materials and PROSorb if the temperature changes. Under fluctuating temperatures this property protects wooden objects and other organic materials from swelling or shrinking: The conditioning indicated on the labels refers to 20°C. At 10°C the conditioning of the cassettes will be around 1 – 1,5 % RH lower, at 30°C around 1 – 1,5 % RH higher