According to melamine foams attractive properties, it has been widely applied in lots of industry segment:

Rail vehicles
In rail vehicles the excellent acoustic properties, safe fire behavior and low weight of Melamine foam predestine it for use in backed wall and ceiling systems and for laminated interior fittings with decorative designs. In the case of the applications in walls and ceilings the high level of thermal insulation brought about by low thermal conductivity is a significant additional advantage.