Thermoplastic Polyurethane (TPU) is elastic and melt-processable and can be colored through various processes. It is an extremely flexible material that is adaptable to many applications. TPUs are linear segmented block co-polymers composed of hard and soft segments. The soft segment can be either a polyether or polyester type, depending upon the application. Its range of physical properties enables TPU to be used as both a hard rubber and a soft engineering thermoplastic.
Summa-Flexx50 is a Polyester-based TPU with a 50 Shore D hardness, a good general purpose grade for FDM with excellent chemical resistance.