Flexibility with excellent impact toughness 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 a material characterized by a relatively easy and trouble-free 3D printing process. Another advantage that allows for perfect prints is the very good adhesion of the first printed layer to the working surface, regardless of whether it is made of glass, steel, plastic, or another material.
Low processing shrinkage and high flexibility significantly reduce the risk of so-called edge warping of the produced parts. The designation 85A in the filament name refers to the Shore hardness rating of the material and classifies Spectrum S-Flex 85A in the category of hard elastomers. This feature, from the perspective of the 3D printing process, reduces the risk of filament deformation in the feeding system that leads the material to the print head. This allows for slightly faster printing compared to other, softer elastomers.
Parts made from Spectrum S-Flex 85A are characterized by very high resistance to hydrolysis (a type of degradation caused by the presence of water), good recyclability, and very good resistance to dynamic forces. Thanks to these properties, it is possible to print 3D parts that protect surfaces exposed to impact (bumpers, edge protectors), sealing and protective elements with high chemical resistance, and also thermal insulators.
Key properties:
- high resistance to hydrolysis - up to 650% elongation at break - Shore-A hardness of 85 - high tear and tensile strength - low shrinkage - resistance to many common industrial oils and chemicals - reduced stringing when the printer is idle
Applications:
- production of seals with high chemical resistance - production of items that need to serve as energy absorbers - functional parts - all types of bumpers, vibration dampers - protective housings - snap-fit parts - sleeves - hinges - bumpers and flexible spacers - sealing parts with increased rigidity - spring damping elements for mechanical and modeling use - flexible high-strength belts - covers and housings for various devices
Filament specifications:
- filament diameter: 1.75 mm / 2.85 mm - extrusion temperature: 200–230 "C - bed temperature: 50–70 "C - print speed: 20–70 mm/s
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