👉 Blast fluid, also known as fire-fighting fluid or fire suppressant, is a chemical solution used to extinguish fires, particularly those involving flammable liquids. It works by interrupting the fire triangle—heat, fuel, and oxygen—through a process called endothermic reaction, which absorbs heat and cools the fire. Commonly, it contains a mixture of water, surfactants, and other additives that help to smother flames and prevent reignition by displacing oxygen. Blast fluid is effective on a wide range of flammable materials, including gasoline, diesel, and oil, making it a versatile tool in firefighting operations.