Polyamides are well known for their resistance to a wide range of chemicals. Akulon and Akulon Ultraflow polyamides exhibit excellent resistance to different types of oils and greases, and are ideally suitable for under-the-hood applications such as engine covers as well as for use in gears and bearings for industrial applications.
Akulon, like other polyamides, are attacked by strong mineral acids and, unless stabilized, are susceptible to hydrolysis in the presence of water and glycols at elevated temperatures.
Guidelines for selecting an Akulon grade with respect to chemical properties:
- versus polyester (PBT): better hydrolysis resistance and resistance against alkaline solvents
- versus poylcarbonate (PC): better environmental stress crack resistance
- PA6: better heat aging and oil resistance than PA66
- PA66: better hydrolysis resistance for grades with similar glass fiber content compared to PA6