PA 11 and PA12 are very similar polymers. They are mostly used for same applications. PA11 is made entirely from vegetable oils, which in its development has had minimal impact on the environment, while PA12 is made from crude oil, which has a higher environmental impact. PA11 has, for most applications, superior mechanical performance in comparison to PA12. PA12 has a slightly lower melting point and density and PA12 performs better at high temperatures and has superior UV resistance.