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  • Vlas Flax yarn

High performance twistless yarn for semi-structural applications

P1040518 Biotex Flax 1000tex Yarn

Biotex Flax provides high levels of performance, coupled with the ease of processing normally associated with glass-reinforced materials. The materials use a unique twistless technology to provide a combination of sustainability, performance and processability not previously seen in composites. Compared to glass fibre composites, Biotex Flax offers reduced weight, improved environmental impact, vibration damping, similar specific stiffness and safer handling.

Biotex Flax is available in a range of yarn weights and fabric constructions. The materials can be processed using standard composites manufacturing techniques and are suitable for semi-structural and decorative applications in a range of sectors, including automotive, sports & leisure, consumer goods and construction.

This 1000tex yarn is typically used for the direct production of parts using pultrusion or filament winding.


Typical processes for 1000tex Biotex Flax yarn include pultrusion and filament winding.


  • Linear Density: 1000tex
  • Package Type: To customer specifications
  • Processing: Typical processes for Biotex Flax yarn include pultrusion and filament winding, or for the production of textile preforms.

Mechanical Properties

Typical mechanical properties of moulded laminates

  • Fibre Volume Fraction: 60%
  • Density: 1.32 g/cm³
  • Tensile Modulus: 42 GPa (ISO 527-4)
  • Tensile Strength: 385 MPa (ISO 527-4)
  • Elongation: 33 GPa (ISO 14125)
  • Flexural Modulus: 430 MPa (ISO 14125)

Data derived from vacuum infused laminates using Biotex Flax 250tex yarn and unsaturated polyester resin, tested at ambient temperature.

Biotex Flax reinforcements are based on renewable biomass and have fewer health and safety concerns than many conventional alternative materials. However, typical precautions should be taken when handling the material including using appropriate PPE and adequate ventilation.

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