Aerosol-generating, hygroscopic flare for warm cloud seeding


Burn-in-place flare

  • Aerosol-generating, hygroscopic flare for warm cloud seeding
  • Pyrotechnic burn-in-place operation
  • Liquid polymer compound base delivers multiple benefits
  • Features our unique, highly effective cloud seeding reagent
  • Safe (non-explosive) and reliable (can be stored up to 10 years)

Use Cases

  • Rain enhancement
  • Rain suppression


Flare Calibre 63.5 mm
Pyro composition weight 500 g 1000 g 1500 g
Approximate burning time 150 s 300 s 450 s
Average active particle yield per gram pyro 1 x 10 15
Total yield per flare 5 x 10 17 1 x 10 18 1 x 10 18

Custom flares are available on request.

Performance Benefits

  • Increased Reliability – The fundamentally new design of CST flares gives very reliable burning intensity and allows flexible burning time selection.
  • Greater Safety – The homogeneous distribution and elastic properties of CST materials virtually eliminate the risk of spontaneous explosions.
  • High Operating Altitude – CST burn-in-place flares can be used up to an altitude of 6 km.
  • Longer Shelf-Life – The hydrophobic compounds used in CST flares exclude the presence of water vapour. This allows significantly longer storage times than flares made using traditional compounds.
  • More Flexibility - CST flares can be configured more flexibly than competing products, giving higher efficiency throughout the entire burning time.
Cloud Temp.
Icon for Warm Clouds
Icon for Top-Seeding by Aircraft
Icon for Below-cloud Seeding by Aircraft
Use Cases
Icon for Rain Enhancement / Reduction

Request Test-Report & Datasheet

We are happy to send you our fully detailed test-reports and further information upon request. Please fill in the form or contact us by phone.