If every kilo counts the AluFoam light panels are even lighter than the GRP Foam panels and are suited for light distributor vehicles of 3.5 tonnes class. The smooth surface of the outside allows the most demanding advertising designs. It is usually coated in RAL 9010.Airline rails (only 0.7 kg/m additional weight) can be recessed into the vapour diffusion-tight inner surface, as for example with the BR 138-3.