Polyamide 11 (PA 11) is a bio-based, semi-crystalline thermoplastic polymer derived primarily from castor oil. It belongs to the nylon family of materials and is known for its excellent balance of mechanical, thermal, and chemical properties. PA 11 is lightweight, resistant to chemicals, and offers high-impact strength and flexibility, even at low temperatures. It is widely used in various industries, including automotive, electronics, sports, and medical applications, where durability and sustainability are essential.