FireFighting Foam

Firefighting foam, also known as fire suppression foam or simply “foam, ” is a type of fire extinguishing agent used to suppress fires that involve flammable liquids or combustible materials. It is a mixture of water, foaming agents, and other additives designed to form a thick, dense foam that can cover the surface of a fuel and prevent the release of flammable vapors.

Firefighting foam is commonly used in a variety of settings, including industrial facilities, airports, and military bases. It is particularly effective for extinguishing fires involving fuels such as gasoline, diesel, and jet fuel, as well as fires involving flammable liquids and chemicals.

There are two main types of firefighting foam: aqueous film-forming foam (AFFF) and protein foam. AFFF is a synthetic foam that contains fluorinated surfactants and forms a thin film on the surface of a fuel, while protein foam is made from animal proteins and forms a thick, stable foam that can be used on certain types of fires. Firefighting foam is typically applied using specialized equipment such as foam generators, which mix the foam concentrate with water and air to create the foam. The foam is then sprayed onto the fire using fire hoses or other types of firefighting equipment. While firefighting foam is highly effective at suppressing certain types of fires, it is also associated with several environmental and health concerns. The foam contains chemicals such as per- and polyfluoroalkyl substances (PFAS), which have been linked to a variety of health problems, including cancer, immune system damage, and developmental issues. As a result, efforts are underway to develop and promote the use of alternative firefighting agents that are safer for both humans and the environment.