Ultrasint® PA11 black CF, a bio-based material (castor oil), is a functionally optimized PA11 for high performance applications. Parts made of this material show a high tensile strength, elasticity and high impact resistance. Typical applications are in environments where high strengths and stiffnesses are required (e.g. motorsports) and/or exposure to special surroundings (e.g. chemical, detergents, oil) may occur. It enables lightweight designs through its high strength-to-weight ratio.