DuraForm EX Black


DuraForm EX Black

DuraForm EX is an impact resistant rigid plastic that is ideal for applications where impact resistance is required and functional hinges.

DuraForm EX combines the characteristics of ABS with extraordinary flexural strength, this combination makes it one of the best rigid materials available for creating functional snaps and hinges.

DuraForm EX can be used for: prototypes that require the toughness and durability of molded polypropylene or ABS; low to mid volume direct manufacturing of end-use parts; complex, thin-walled ducts; aircraft and motorsports parts; enclosures and housings; parts with snap-fits and living hinges; automotive dashboards, grilles and bumpers.

General Properties Condition Metric U.S.
Density ASTM D792 1.01 g/cm3 1.01 g/cm3
Mechanical Properties Condition Metric U.S.
Tensile Strenght Yield (MPa/PSI) ASTM D 638 37 5366
Tensile Strenght Ultimate (MPa/PSI) ASTM D 638 48 6961
Tensile Modulus (MPa/KSI) ASTM D 638 1517 220
Elongation at break (%) ASTM D 638 47 47
Flexural Strenght, Yield (MPa/PSI) ASTM D 790 42 6091
Flexural Strenght, Ultimate (MPa/PSI) ASTM D 790 26 6672
Flexural Modulus (MPa/KSI) ASTM D 790 1310 190
Hardness, Shore D ASTM D2240 74 74
Impact Strenght (notched Izod, 23°C) ASTM D256 74 J/m 1.4 ft-lb/in
Impact Strenght (unnotched Izod, 23°C) ASTM D256 1486 J/m 27.8 ft-lb/in
Gardner Impact ASTM D5420 11.8 J 8.7 ft-lb
Thermal Properties Condition Metric U.S.
Heat Deflection Temperature ASTM D 648
@0.45 MPa
@1.82 MPa

188 °C
48 °C

370 °F
118 °F
Coefficient of Thermal Expansion
(µm/m-°C/in-°F)
ASTM E 831
0-50 °C
85-145 °C

120
342

66.7
190
Specific Heat Capacity ASTM E1269 1.75 J/g-°C 0.418 BTU/lb-°F
Thermal Conductivity ASTM E1225 0.51 W/m-K 3.5 BTU-in/hr-ft2-°F
Electrical Properties Condition Metric U.S.
Volume Resistivity ASTM D257 1.3 X 1013 ohm-cm 1.3 X 1013 ohm-cm
Surface Resistivity ASTM D257 4.9 X 1012 4.9 X 1012
Dissipation Factor, 1 KHz ASTM D150 0.050 0.050
Dielectric Constant, 1 KHz ASTM D150 4.5 4.5
Dielectric Strenght ASTM D149 18.5 kV/mm 470 kV/in