The wall panels of the Tecnolam transporters are made of 4mm thick polypropylene alveolar panels.
The alveolar shape of the wall coverings serves to make the inner lining of polypropylene resistant on one side to shocks and on the other side so light that it does not reduce the load-bearing capacity of the boxcar. As a result, more fuel can also be saved during the transport of goods.
The polypropylene plates are water-repellent and therefore easy to wash. It is sufficient to clean with a simple sponge and a normal cleaner.