A film that contains a thermoplastic polyurethane and water-soluble polymer is provided. The method includes the step of providing at least one rib on one of either a liner having a length or an interior surface of at least a first mold. A shielding wall made of an electrically conductive material is provided, this wall being electrically conductively connected to the body panel and being situated between a wheel bearing and the electrically conducting structure. A resistor couples the first circuit node to the second circuit node. Reduced residence time of stripper vapor in the vessel containing the stripper and the closed cyclone system reduces thermal cracking of stripper vapor. Particularly, a composition that includes a polyisocyanate and at least two polyols, one of which is a fatty polyol.