Flexibility with very good impact resistance and thermal insulation. Spectrum S-Flex 98A™ is a filament based on thermoplastic polyether polyurethane. In the field of additive manufacturing, S-Flex 98A™ is characterized by a relatively simple and trouble-free 3D printing process. It has excellent first-layer adhesion of the printed part to the build plate, regardless of whether it is made of glass, steel, plastic, or another material. Low processing shrinkage and very high flexibility reduce the risk of warping edges on the manufactured parts. The filament name 98A refers to the hardness of the material on the Shore scale, placing S-Flex 98A in the category of hard elastomers. This property reduces the risk of filament deformation in the feed system from the filament to the print heads, allowing for slightly faster printing compared to other, more vulnerable elastomers. The additively manufactured parts made from S-Flex 98A™ exhibit very high hydrolysis resistance, good recyclability, and excellent resistance to dynamic forces. Thanks to these properties, it is possible to print 3D parts for protecting impact-prone surfaces, sealing and protective elements with high chemical resistance, as well as thermal insulators. Applications include: bushings, vibration dampers, protective covers, snap-fit parts, edge protection against impacts, bumpers, and flexible spacers, sealing parts with increased rigidity, spring-damping elements for use in machine and model construction, flexible straps with high strength, covers and housings for various devices, parts of thermal insulation systems.