Foam contains what percentage of water?

Foam typically contains a significant amount of water, and the most accurate percentage for most firefighting foams falls within the range of 94% to 99%. This high water content is crucial because it helps in cooling and suffocating a fire.

The water in the foam aids in extinguishing flames by absorbing heat and providing a barrier that prevents the release of flammable vapors. The foaming agent, which is mixed with this water, creates the necessary bubbles that help blanket the fire, thereby interrupting the chemical reactions that sustain combustion.

Understanding the composition of foam is essential for effective firefighting strategies, especially in industrial and hazardous environments where flammable liquids are present. This knowledge allows fire brigade members to make informed decisions on the appropriate type and amount of foam to use in various scenarios.