PrimaSelect™ FLEX

  • PrimaSELECT™Flex is a new type of Thermoplastic Co-Polyester (TPC) with very rubber – like characteristics. This material is perfect when you need a strong, but still flexible filament. Our filament has a shore hardness of 45, which means that it´s rigid but still pliable.

    • High flexibility with a shore hardness of 45D
    • Good resistance to chemicals
    • High UV resistance
    • Good heat resistance
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  • PrimaSELECT™Flex is a new type of Thermoplastic Co-Polyester (TPC) with very rubber – like characteristics. This material is perfect when you need a strong, but still flexible filament. Our filament has a shore hardness of 45, which means that it´s rigid but still pliable.


    PrimaSELECT™Flex can create object that are stretchable and can survive punishment that no ABS or PLA could tolerate. Another great thing with PrimaSELECT™Flex is it´s great UV and chemical resistance. The material can be bend and stretched but will always go back to its original shape. The one application that most people know this material from is mobile phone cases, so it´s great for usage where you need the material to fit the model, not the other way around.


    • PrimaSELECT™Flex is best used with a heated bed which should be set to 90 – 100˚C it could also be used without heated bed depending on the type and size of your print.
    • A print speed of 10-30 mm/sec are to prefer due to the materials flexibility.
    • PrimaSELECT™Flex sticks on BuildTak or glass plate coated with adhesive spray or glue stick.
    • PrimaSELECT™Flex is reeled on a transparent spool with 500 g of high quality filament. It´s packed in a sturdy box and packed with silica gel to avoid moister.
    • PrimaSELECT™Flex are available in diameter sizes of 1.75 mm and 2.85 mm.

    Our state of the art factory is equipped with the latest in laser measuring technology to ensure that you will receive a spool of filament with a very tight diameter and roundness tolerance. This in turn makes for a filament that is compatible with most common printers on the market today.


    Why should I use PrimaSELECT™ Flex?

    • High flexibility with a shore hardness of 45D
    • Good resistance to chemicals
    • High UV resistance
    • Good heat resistance
  • Dimensions

    Size: Ø tolerance Roundness
    1,75 mm ±0,05 mm 95 %
    2,85 mm ±0,10 mm 95 %

    Physical properties

    Description: Testmethod Typical value
    Specific gravity ISO 1183 1,14 g/cc
    Melt volume flow rate ISO 1133 39 cm³/10 min
    Stress at break ISO 527 24
    Strain at break ISO 527 530,00 %
    Tensile modulus ISO 527 95 MPa
    Impact strength Charpy method 23 °C ISO 179 Notched No break
    Shore D ISO 868 45

    Physical properties

    Description: Testmethod Typical value
    Specific gravity ISO 1183 1,14 g/cc
    Melt volume flow rate ISO 1133 39 cm³/10 min
    Stress at break ISO 527 24
    Strain at break ISO 527 530,00 %
    Tensile modulus ISO 527 95 MPa
    Impact strength Charpy method 23 °C ISO 179 Notched No break
    Shore D ISO 868 45

    Thermal properties

    Description: Testmethod Typical value
    Printing temp. 220-260 °C
    Melting temp. ISO 11357 180 °C