Spectrum Filament S-Flex 85A 250g, polar white

Flexibility with very good impact toughness and thermal insulation
Spectrum S-Flex 85A is a filament based on thermoplastic polyether polyurethane. In additive manufacturing, S-Flex 85A is a material known for a relatively easy and trouble-free 3D printing process. Another advantage that enables achieving a perfect print is the very good adhesion of the first layer of the printed part to the build surface, regardless of whether it is made of glass, steel, plastic, or other material. Low processing shrinkage and high flexibility significantly reduce the risk of so-called edge waviness of printed parts. The “85A” in the filament name refers to the material hardness on the Shore scale, classifying Spectrum S-Flex 85A as a hard elastomer. This property reduces the risk of filament deformation in the feeding system that leads the material to the print head during 3D printing. This allows slightly faster printing compared to other, more flexible elastomers.

Parts made from Spectrum S-Flex 85A are characterized by very high resistance to hydrolysis (a type of degradation caused by 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, sharp edge protectors), sealing and protective elements with high chemical resistance, and thermal insulators.

Key properties:
The filament offers high resistance to hydrolysis, up to 650% elongation at break, Shore-A hardness of 85, high resistance to tearing and tension, low shrinkage, resistance to many common industrial oils and chemicals, and a reduced number of strings during printer inactivity.

Applications:
It is suitable for the production of seals with high chemical resistance, objects used as energy absorbers, functional parts, all types of bumpers and vibration dampers, protective housings, snap-fit parts, sleeves, hinges, bumpers and flexible spacers, sealing parts with increased stiffness, spring damping elements for machine production and modeling, flexible bands with high strength, and covers and housings for various devices.

Filament specifications:
The filament diameter is 1.75 mm or 2.85 mm, extrusion temperature ranges from 200 to 230"C, bed temperature is 50 to 70"C, and recommended print speed is 20 to 70 mm/s.

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