Within the field of thermoplastics, one of the highest performance materials is PEEK. It has exceptional strength and stiffness, outstanding fatigue and creep behavior, and excellent high temperature stability. To top it off, this thermoplastic material is ISO 10993-5 and ISO 10993-10 compliant for biocompatibility, allowing them to be used in many 3d printing applications. Its high wear resistance also makes it very suitable for surgical guides and mechanical machine parts that need to meet biocompatibility and/or food safety standards.