The American manufacturer of heavy-duty, zero-emission engines Nuvera Fuel Cells, Billerica, Massachusetts is now using BASF’s polyphthalamide (PPA) Ultramid® Advanced N to manufacture several components in its latest generation of 45 kW fuel cell engines. The fuel cell engines will be integrated into transit buses and delivery vehicles in China over the next three years. The components, such as manifold, thermostat housing, check valve, ejector as well as exhaust pipes, require stable material properties across varying temperatures. UltramidÒ Advanced N3HG6 shows excellent thermal and chemical resistance, outstanding mechanical properties, high impact strength, good dimensional stability and a stable long-term performance. As some of the components are exposed to a variety of media through the cooling water, air and hydrogen channels, the PPA compound based on PA9T combines excellent chemical resistance with meeting the purity requirements for sensitive applications in fuel cells and electronic parts.