Compressed air foam

Water Supply
ICAF can eliminate or reduce the size of water supply tanks & fire pumps

Drainage and Containment
ICAF can eliminate or reduce the size of drainage and containment systems including spill tanks and oil separators

Disposal Costs
The significant reduction in foam and water required for ICAF reduces the costs associated to clean-up and disposal of foam during discharge testing or after a fire.


Compressed Air Foam Video



Significant Reduction in Foam and Water Required

ICAF uses four times less water and up to six times less foam concentrate compared to foam-water systems.

Flammable &
Liquid Type
Minimum Density (L/min-m2)
Minimum Density (L/min-m2)
Hydrocarbons 6.52 at 3% 1.63 at 2% 4.07 at 3% 1.02 at 3%
Polar solvents: Alcohol 9.78 at 3% 2.44 at 6% 6.11 at 3% 2.44 at 6%
Ketone 10.59 at 3% 2.44 at 6% 6.11 at 3% 2.44 at 6%



Performance of the System

Compressed air foam (CAF) is generated by the combination of compressed air, water and foam concentrate in the right proportions, to create a homogeneous foam solution similar to shaving cream. CAF is delivered with high momentum through a fixed piping system, and distributed over the hazard via an approved discharge device. The ICAF compressed air foam system is FM Approved as a local application extinguishing system for class B pool fires, spill fires and cascading fires. Full-scale fire tests have demonstrated ICAF to be an extremely effective extinguishing mechanism for flammable and combustible liquids, both miscible and non-miscible. The unique physical properties and texture of CAF allow it to form a stable and uniform foam blanket overtop the liquid surface. The robust foam blanket developed during a discharge works at the fuel surface, creating an effective vapour seal to establish a physical separation between the fuel and the burning vapours. Because CAF is generated through aeration in a mixing chamber versus agitation at the nozzle, it has higher expansion ratios and longer drain times than conventional low-expansion foam systems. This translates directly into enhanced extinguishing and burnback performance.

SIRON FOAM ICAF Performance of the Systems


Enhanced System Performance

Full-scale fire tests have demonstrated that ICAF is a very effective extinguishing mechanism for class B fires. The unique physical properties of ICAF foam with a 10:1 expansion ratio combined with long drain times provide improved extinguishing and burnback performance. Furthermore, its ability to stick to vertical surfaces enabled the ICAF to be Listed for cascading fires. System performance can be a deciding factor in critical applications where it is desirable that system performance exceeds the minimum requirements set out in published codes or standards.



Water Tank Horizontal
siron icaf water tank Horizontal


Improved Visibility in the Hazard

In comparison to water-based systems, CAF’s unique physical properties significantly reduce steam production and thereby improve visibility during and after a fire. The CAF blankets the fuel surface and therefore does not cause visual impairment often associated to high-expansion, total flooding foam systems.



Transformers Test Video


For more information about Compressed Air Foam visit at www.compressedairfoam.eu.