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DuraForm GF

DuraForm GF is a glass (bead) filled nylon based on nylon 12 developed for applications in more extreme testing environments delivering improved stiffness and heat resistance relative to DuraForm PA. It can be readily machined and painted.

Technical Data

Click here for supplier's data sheet.

General Properties Value Test
Specific Density 1.49 g/cm3 ASTM D792
Moisture Absorption – 24 hours 0.22% ASTM D570
Mechanical Properties Value Test
Tensile Strength, Yield 27 MPa (3916 psi) ASTM D638
Tensile Strength, Ultimate 26 MPa (3771 psi) ASTM D638
Tensile Modulus 4068 MPa (590 ksi) ASTM D638
Elongation at Yield 1.4% ASTM D638
Elongation at Break 1.4% ASTM D638
Flexural Strength, Yield N/A ASTM D790
Flexural Strength, Ultimate 37 MPa (5366 psi) ASTM D790
Flexural Modulus 3106 MPa (450 ksi) ASTM D790
Hardness, Shore D 77 ASTM D2240
Impact Strength (notched IZOD, 23°C) 41 J/m (0.8 ft-lb/in) ASTM D256
Impact Strength (unnotched IZOD, 23°C) 123 J/m (2.3 ft-lb/in) ASTM D256
Garner Impact 4.5 J (3.3 ft-lb) ASTM D5420
Thermal Properties Value Test
Heat Deflection Temperature (HDT) 179°C (354°F) @ 0.45 MPa
134°C (273°F) @ 1.82 MPa
Coefficient of Thermal Expansion (51-150°C) 82.6 µm/m-°C (45.9 µin/in-°F) @ 0-50°C
179.2 µm/m-°C (99.6 µin/in-°F)
@ 85-145°C
Specific Heat Capacity 1.09 J/g-°C (0.261 BTU/lb-°F) ASTM E1269
Thermal Conductivity 0.47 W/m-K (3.26 BTU-in/hr-ft2-°F ASTM E1225
Flammability HB UL 94
Electrical Properties Value Test
Volume Resistivity 3.2 x1011 ohm-cm ASTM D257
Surface Resistivity 3.2 x1011 ohm ASTM D257
Dissipation Factor, 1 KHz 0.177 ASTM D150
Dielectric Constant, 1 KHz 6.27 ASTM D150
Dielectric Strength 8.7 kV/mm (221 kV/in) ASTM D149
Data was generated by building parts under typical default parameters.
DuraForm GF was processed on a base level Sinterstation HiQ SLS system at 13 watts laser power
5 metres/sec scan speed, and a powder layer thickness of 0.1mm.


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