Materials 4 AM is a crucial topic in AM. Today we know a large number of engineering materials from metal alloys, to polymeric material to ceramic and composites. Most of them are either not available as precursor for additive manufacturing nor can be processed by AM technologies. Objectives of Materials 4 AM research are to develop new materials which reach high performance for engineering application or develop very specific functional properties to materialise new design, products or physical properties. Typical developments are materials based on the precursor of metallic powders, new types of resins, ceramic materials or functional materials such as magnetic properties.