Viking AFFF 3%M C6 is an aqueous film forming foam concentrate (AFFF) consisting of fluorocarbon and hydrocarbon surfactants blended with various solvents, preservatives and stabilizers. The foam forms an aqueous film that rapidly cuts off the oxygen supply and knocks down the fire. The expanded foam, from which the film is drained, forms a stable blanket that suppresses the release of flammable vapors and cools down the fuel surface extinguishing the fire and preventing reignition. The low surface tension of the water-foam solution enables the aqueous film, although heavier than the burning vapors, to float on top of the liquid surface.  Viking AFFF 3%M C6 should be used at 3% of the solution volume (3 parts concentrate in 97 parts of water) in brackish, fresh or sea water. It may also be stored as a premix solution in fresh water.