Centurion 6% is aqueous film-forming foam (AFFF) which is used at 6% concentration to extinguish fires in hydrocarbon fuels.
This new formulation demonstrates National Foam’s commitment to superior flexibility, firefighting performance, and environmental responsibility. Centurion 6% is suitable for use with most types of proportioning and discharge equipment. AFFF foam concentrates are designed for rapid fire knockdown by producing a thin aqueous film which spreads across the surface of the fuel, separating the fuel from oxygen. This is accomplished by allowing the foam solution to quickly drain from the foam bubble that in turn, affects long term seal ability and burn back resistance. The aqueous film is produced by the fluorocarbon surfactant reducing the surface tension of the foam solution to a point where the solution can be supported by the surface tension of the fuel. The effectiveness of the aqueous film is directly influenced by the surface tension of the fuel. The film tends to be more effective on fuels with higher surface tension such as diesel and jet fuels, and less effective on fuels with lower surface tension such as hexane and gasoline.