Flexibility with very good impact resistance and thermal insulation. Spectrum S-Flex 85A™ is a filament based on thermoplastic polyether polyurethane. In the field of additive manufacturing, S-Flex 85A™ is characterized by a relatively simple and trouble-free 3D printing process. An additional advantage is the excellent adhesion of the first layer of the printed part to the print bed, 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 in the produced parts. The filament name – 85A – refers to the hardness of the material on the Shore scale. The risk of deformation of the filament in the area of the filament feed to the print heads has been minimized. This allows for somewhat faster printing compared to other, more susceptible elastomers. The additively manufactured parts made from S-Flex 85A™ exhibit very high hydrolysis resistance (a type of degradation due to the presence of water), good recyclability, and excellent resistance to dynamic forces. Thanks to these properties, it is possible to print 3D parts for the protection of impact-prone surfaces (bumpers, edge protection), sealing and protective elements with high chemical resistance, and thermal insulators. Application areas 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 machinery and model building, flexible straps with high strength, and covers and housings for various devices.