Viking ARC 3X3S C6 is high efficiency multipurpose alcohol resistant aqueous film forming foam concentrate (AR-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. As a result, it is highly effective against hydrocarbon fires. With the addition of special polymers it is also highly effective against polar solvent liquids. 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. When applied on polar solvent fuel fires, a polymeric membrane is formed and makes it possible for the foam blanket to extinguish effectively. This works on foam destroying polar solvent liquids such as pure MTBE or Gasoline mixed with MTBE. Viking ARC3X3S should be used at 3% of the solution volume on both hydrocarbon and polar solvent liquids (3 parts concentrate in 97 parts of water) in brackish, fresh or sea water.