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TPU S-Flex 85A filament Spectrum Filaments 1,75 mm / 0,5 kg

Flexible plastic TPU S-Flex Shore 85A

Flexible 3D plastic Shore hardness 85A - is a new Spectrum S-Flex 85A. A material for 3D printing models that can be bent, as well as have excellent impact strength and thermal insulation.

Spectrum S-Flex 85A is a material based on thermoplastic polyester polyurethane. The thread from it is characterized by a relatively easy and trouble-free process of 3D printing. In addition, the material has very good adhesion to any material of the work surface, which allows you to get the perfect result of 3D printing.

Low shrinkage and high flexibility significantly reduce the risk of so-called folding of the edges of manufactured parts. As the name implies, the hardness of the material on the Shore scale is 85A, ie Spectrum S-Flex 85A is a solid elastomer. This feature in terms of the 3D printing process reduces the risk of deformation of the thread during feeding to the print head. This allows you to print a little faster than other, more compatible elastomers.

Parts made of Spectrum S-Flex 85A are characterized by very high resistance to hydrolysis (destruction caused by the presence of water), good recyclability and very good resistance to dynamic forces. Thanks to these properties, it is possible to 3D-print parts that protect impact surfaces (bumpers, sharp edges), sealing and protective elements with high chemical resistance, as well as thermal insulators.

TPU S-Flex 85A features

  • High resistance to hydrolysis.
  • Up to 650 % elongation at break.
  • Shore hardness - A85.
  • High resistance to rupture and rupture.
  • Low shrinkage.
  • Resistance to many common industrial oils and chemicals.
  • Reduced the number of lines when the printer is not working.

TPU S-Flex 85A application

  • Manufacturing of seals with high chemical resistance.
  • Manufacturing of products to be used as energy adsorbents.
  • Functional parts.
  • All kinds of bumpers, vibration dampers, guides, protective cases, compressible parts, sleeves, hinges, bumpers and flexible gaskets.
  • Sealing parts with increased rigidity.
  • Spring-cushioning elements for use in mechanical engineering and modeling.
  • Flexible tapes with high strength.
  • Covers and housings for various devices.

Shore Hardness 85A Flexible Plastic for 3D Printing S-Flex buy


A 0.5 kg filament is wound on a transparent spool, which contains information about the type of material, diameter, color and recommended printing temperature. Each coil is packed in a vacuum with a dehumidifier. All in the original Spectrum Filaments foil cardboard.

Coil dimensions

  • Outer diameter - 200 mm.
  • Width - 55 mm.
  • Inner diameter - 52 mm.
  • Weight of empty coil - ± 220 g.

Verify quality of 3D plastic thread 

Spectrum Filaments is the only company in Poland and one of the few in the world that has a tool for testing purchased filaments. VERIFY YOUR SPOOL is the most accurate quality control system on the market, ensuring that Spectrum Filaments products meet his stringent requirements.

Filament for 3D printers is produced by free extrusion, which is one of the most difficult extrusion processing technologies, due to the particularly significant influence of process parameters on product dimensions and material homogenization. During the manufacturing process, each 1mm of Spectrum Filaments is continuously measured in 2 axes with an accuracy of ±0.8 µm, resulting in a quality end product. To prove this, Spectrum Filaments, as one of the few manufacturers in the world, has introduced the possibility of an online presentation, individually for each coil produced:

  • diameter travel along the entire length of the coil;
  • average diameter;
  • ovality;
  • standard deviation.

Buy elastic filament for 3D printing in Poland

FDM materials
Ø Of Plastic (mm) 1,75
Print Temperature (°C) Up to 270
Material Flex
Diameter Tolerance (mm) +/- 0,05
Density (g/cm3) 1,16
Shore Hardness 85A
Colours Bahama Yellow, Bloody Red, Deep Black, Lime Green, Lion Orange, Pacific Blue, Polar White
Printing Options
Print Temperature (°C) 200 - 230
Bed Temperature (°C) 50 - 70
Heated Bed Necessary
Closed Chamber Not required
Active Cooling Fan (%) 50
Flowrate (%) 100 - 105
Print Speed (mm/s) 20 - 70
Manufacturer Country Poland
Weight & Dimensions
Plastic Weight (kg) 0,5
Weight Brutto (kg) 0,9

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