3D printer filament


3D printer filament

Edition Number :
Edition Date :
November 06, 2019

Clariant's 20% glass fiber reinforced polyamide 6/66 (PA6/66-GF20) is a great material for the production of strong 3D printed parts. The glass fibers help increase mechanical properties and minimize warpage while printing.

  • Strong and tough engineering thermoplastic
  • Chemically resistant
  • High heat resistance
  • Good tensile strength
  • Glass fiber reinforcement helps minimize warping during printing and improves strength
  • Reduced thermo-oxidative degradation
  • Minimized undesired yellowing due to ultraviolet light


  • Mechanical and technical application parts that require strength, toughness and thermal resistance
  • Prototypes
  • Tools, jigs, fixtures

*Subject to detailed product specifications.

Color Range

  • Black

Custom colors available upon request.

  • Print Temperature = 240-260°C
  • Print Speed = 20-50 mm/s
  • Bed Adhesion = A polyvinylpyrrolidone (PVP) based glue coated on a glass or carbon fiber surface
  • Bed Temperature = ideally 80°C
  • Fan Settings = off to low

Notes: parameters are dependent on printer used; Clariant tests were performed on an Ultimaker S5 printer.

Property Typical ValuesUnitsTest MethodTest Specimen
Tensile stress at yield, 50 mm/min

92 dry

54 cond.b

108 dry

61 cond.

MPaISO 527Injection molded
72 dry 
MPaISO 5273D printed XY / flat at 250°C
89 dry 
MPaISO 5273D printed XZ / on edge at 250°C
MPaISO 5273D printed ZX / upright at 250°C
Tensile stress at break, 50 mm/min

83 dry

49 cond.

99 dry

57 cond.

MPaISO 527Injection molded
70 dry 
MPaISO 5273D printed XY / flat at 240°C
88 dry 
MPaISO 5273D printed XZ / on edge at 250°C
22 dry 
MPaISO 5273D printed ZX / upright at 250°C
Tensile elongation at yield, 50 mm/min

3.8 dry

15 cond.

3.7 dry

14 cond.

 %ISO 527Injection molded
  3.7 dry  %ISO 5273D printed XY / flat at 250°C
  3.5 dry  %ISO 5273D printed XZ / on edge at 250°C
  -- dry  %ISO 5273D printed ZX / upright at 250°C
Tensile elongation at break, 50 mm/min

11 dry

34 cond.

9.0 dry

25 cond.

%ISO 527Injection molded
3.7 dry  %ISO 5273D printed XY / flat at 250°C
3.7 dry  %ISO 5273D printed XZ / on edge at 250°C
1.7 dry  %ISO 5273D printed ZX / upright at 250°C
Tensile modulus (modulus of elasticity), 1 mm/min

5435 dry

1910 cond.

6138 dry

2407 cond.

  MPaISO 527Injection molded
  3932 dry  MPaISO 5273D printed XY / flat at 250°C
  4795 dry


 MPaISO 5273D printed XZ / on edge at 250°C
  2213 dry  MPaISO 5273D printed ZX / upright at 250°C
Flexural modulus40034080

MPaISO 178injection molded
Flexural strength112122

MPaISO 178Injection molded
Izod impact notched

kJ/m2ISO 180Injection molded
Charpy impact notched9.1 dry5.0 dry

kJ/m2ISO 179Injection molded


kJ/m2ISO 1793D printed XY / flat at 250°C
Charpy impact unnotched81 dry62 dry 
kJ/m2ISO 179Injection molded
35 dry 
kJ/m2ISO 1793D printed XY / flat at 250°C
Melting point

 ISO 11357, DSCc 
Glass transition temperature  

°CISO 11357, DSC 
Heat deflection temperature at 1.8 MPa (A)
158 dry

°CISO 75Injection molded
 143 dry126 dry  °CISO 753D printed XY / flat at 250°C
Heat deflection temperature at 0.45 MPa (B)169 dry178 dry

°CISO 75Injection molded
  174 dry  °CISO 753D printed XY / flat at 250°C
  kg/m3ISO 1183 
Volume    cm3ISO 1183 

1% in H2O
Water absorption 
  % ISO 6224 hours at 23°C
Water content - coulometric Karl Fischer
   μg/gISO 12937after drying at 120°C for 2 hours
Water content 
ISO 15512after drying at 120°C for 2 hours
non-volatile-matter content
   %ISO 3251 
a. Organic based color. b. Test parts are conditioned at 70% humidity and 25°C. c. DSC = Differential Scanning Calorimetry at 10°C/minute.
Note: results are generated according to the valid testing standards indicated above and the standard operating procedures used by the testing facilities.

Delivery Form

1.75 mm and 2.85 mm diameter 3D printer filament.


1 kg and 5 kg spools of 3D printer filament.
Custom sizes are available upon request.


Ideally store the 3D printer filament in a cool, dry place at temperatures between 5 to 25°C in a sealed container with the provided Clariant Desi Pak® desiccant bag. If the 3D printer filament has been exposed to moisture, please dry at 80°C for 3-4 hours with a vacuum or desiccant drying system if possible. Minimum shelf life is 1 year from the date of shipping when properly stored.
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Please contact us for safety and regulatory details or the Material Safety Data Sheet (MSDS).

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This information corresponds to the present state of our knowledge and is intended as a general description of our products and their possible applications. Clariant makes no warranties, express or implied, as to the information’s accuracy, adequacy, sufficiency or freedom from defect and assumes no liability in connection with any use of this information. Any user of this product is responsible for determining the suitability of Clariant’s products for its particular application.<br />
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