The extinguishing effect and function of Extover®
Fuel, oxygen and heat are the fundamental requirements for a fire to burn. All three factors must be present in the right proportions. A catalyst can promote combustion while an inhibitor retards a fire. All fire fighting methods are based on eliminating one or more fundamental requirements for a fire.
Extover® is multifunctional
- SUFFOCATION EFFECT Covering the fire load with Extover® granulate displaces oxygen and separates it from the fuel. The fire is suffocated.
- COOLING EFFECT Extover® can bind a lot of heat energy due to its specific thermal capacity. It absorbs heat energy, thereby cooling the fire. The thermal reaction is disrupted.
- ISOLATION EFFECT Like glass, Extover® melts at a certain temperature. The granulate absorbs a lot of heat in the form of melting energy, cooling the fire while forming an impervious layer over the fire load. A reaction with oxygen is prevented. Even difficult to control metal fires, such as sodium or magnesium fires, can therefore be extinguished with Extover®.
- GAS TIGHTNESS Thanks to the Extover® grain shape, very dense sphere packing is achieved. The supply of oxygen is impeded by the packed bed and the formation of combustible gases is prevented.
- SORBENCY OF LIQUIDS The special granulate mixture combined with the porous and therefore especially large grain surface effectively binds liquids.
- FIRE GAS FILTERING Just like liquids, gases and vapours accumulate on the extremely large surface of the Extover® granulate and are bound for disposal.