Gallery OBLOC®  1
Gallery OBLOC®  1
February 2021
By ausec
Headquarters 42610 Saint-Romain-le-Puy, France

OBLOC® - Innovative flood protection barrier

Climate change is causing extreme weather events that lead to increasingly frequent and violent flash floods, affecting previously unexposed areas. These cause considerable financial, ecological and psychological damage. In order to reduce these impacts, Ausec has developed the OBLOC® range of flood control products. Flood barriers absorb, block and divert water and sludge during a flood to reduce damage and waste after a flood. This lightweight, thin-looking bag increases its volume by 2400% when activated in contact with water. The patented innovation of these products provides a low storage volume, homogeneous activation and excellent water retention capacity. They are environmentally friendly and can be used independently.

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Key features

  • OBLOC® flood bags allow to reduce the storage volume by 1900% compared to a traditional sandbag (10 sandbags = 0.36m3, 10 OBLOC® bags = 0.019m3)
  • OBLOC® flood bags are 4 times faster to implement (2 hours for the 10 sandbags (reception, filling and installation), about 30 minutes for the 10 OBLOC® flood bags)
  • The solution is composed of 87% recycled products (super absorbent polymers not adapted to the hygiene sector), these products are reused to reduce the waste generated following a flood - The envelope is composed of recyclable polypropylene
  • OBLOC® products contribute to reduce the waste generated by floods
  • The use of OBLOC®'s products reduces the use of sandbags, CO2 emissions related to sand transportation and damages related to sand extraction.


  • Up to 25% cheaper than alternative : 10 OBLOC® bags = 158€ VS 10 sandbags = 198€
  • In case of flooding at a professional's premises/collectivity, no stoppage of activity, no loss of equipment/products/stock and the supply chain remain operational
  • Protection of movable property and real estate

Categories of Application

Maturity Stage

  • Medium and large scale commercialization
  • Small scale commercialization
  • Initial market commercialization
  • Prototype testing in the real world
  • Prototype testing 1:1 in the lab

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The information set out above, is solely for the purposes of information and the Solar Impulse Foundation does not provide any guarantee as to its authenticity, completeness or accuracy. This information does not constitute investment advice or a recommendation to buy into, transact or to enter into any agreement with any of the parties or persons mentioned above. Potential investors or interested parties are solely responsible for their investment or business decisions and for performing any due diligence required by the circumstances.