Polyamide 12 is a partially crystalline plastic with good dimensional and temperature stability and good damping characteristics for noise and vibrations. It has the lowest density of any polyamide and absorbsthe least water. The suffix “12” refers to the molecular structure of the individual building blocks. They are composed of 12 carbon atoms and are distinguished by a particularly long alkyl chain. This fact, together with the interaction between specific parts of the molecule, make the plastic especially impact-resistant and resistant to oils, fuels, and other chemicals. Polyamide 12 is thus used in an extremely wide range of applications.