NAFFCO AFFF Foam Concentrate (Aqueous Film Forming Foam) – A high-performance firefighting foam concentrate specially formulated for rapid suppression of Class B hydrocarbon fuel fires, including petrol, diesel, kerosene, aviation fuel and similar flammable liquids. It forms a fast-spreading aqueous film over the fuel surface, helping suppress flammable vapours, separate the fuel from oxygen, provide cooling, and reduce the risk of re-ignition.