OLAS 6 is a concentrated AFFF fire-fighting foam made from a mixture of fluorine-based and hydrocarbon-based surfactants, along with other solvents and performance additives.
OLAS 6 requires relatively low energy to form foam; the resulting foam solution is capable of forming a water film on most hydrocarbon fuel surfaces. This film separates the fuel from oxygen and prevents fuel evaporation. Additionally, the water in the foam solution has a cooling effect.
OLAS 6 is suitable for use with saltwater, freshwater, and brackish water at a mixing ratio of 6%. The foam solution can also be stored and used within fire extinguishing systems.
OLAS 6 is used at a mixing ratio of 6% (by volume) for Class B fires (hydrocarbon fuels).
Due to its excellent wetting properties, OLAS 6 is also used for Class A fires. OLAS 6 is not suitable for use in fires involving polar fuels.
OLAS 6 can be used with low-expansion foam spraying equipment (nozzles, spray heads) and other spraying equipment (mist nozzles, standard nozzles).

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