MOUSSEAL®-A is a fluorine-free additive that provides increased A-ratings of fire extinguishers. It is based on organic and anorganic salts as well as special surface- and interface-active surfactants and meets particularly high requirements on fire performance. The product enables thorough and lasting extinguishing of solid fuels. Due to its special composition, MOUSSEAL®-A can penetrate particularly well into the structure of the fire surface at the same time providing an impregnating effect.