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DuraForm PA & GF Materials

Create durable, high-quality, fully testable parts with SLS system.

Use DuraForm materials for:

  • Form, fit/snap-fit, and functional testing
  • In vivo testing
  • Durable patterns for sandcasting & silicone tooling
  • Production parts.
  • For polyporpylene-like parts

Benefits:

  • Durable parts without tooling
  • Heat and chemical resistant
  • Machinable, weldable, readily-joined-mechanically or with other adhesives
  • Excellent surface quality
  • High feature definition and detail
  • High durability and stability
  • USP Level VI certified; sterilized in an autoclave (PA only)

DuraForm PA & GF Materials Typical Properties

Powder Properties

Units

Test Method

PA

GF

Density Tap

g/cm3 ASTM D4164 0.59 0.84
Particle size average(1) µm Laser Diffraction 58 48
Particle size Range(1) 90% µm Laser Diffraction 25-92 10-96
Specific Gravity 200C ASTM D792 0.97 1.40
Moisture Absorption 230C % ASTM D570 0.41 0.30
Thermal Properties

Units

Test Method

PA

GF

Melting point: Tm 0C DSC 184 185
DTUL, 0.45 MPa 0C ASTM D648 177 175
DTUL, 1.82 MPa 0C ASTM D648 86 110
Mechanical Properties

Units

Test Method

PA

GF

Tensile Strength MPa ASTM D638 44 38.1
Tensile Modulus MPa ASTM D638 1600 5910
Tensile Elongation at Break % ASTM D638 9 2
Flexural Modulus MPa ASTM D790 1285 3300
Impact Strength Notched Izod J/m ASTM D256 214 96
Impact Strength Unnotched Izod J/m ASTM D256 428 101
Surface Finish

Units

Test Method

PA

GF

Upper Facing As processed, Ra µm 8.5 6.2
Upper Facing After finishing, Ra µm 0.13 1.0
Chemical Resistance
Alkalines, hydrocarbons, fuels & solvents
Electrical Properties

Units

Test Method

PA

GF

Volume Resistivity 220C, 50% RH, 500V ohm x cm ASDM D257-93 3.1 X 1014 2.0E X 1014
Surface Resistivity 220C, 50% RH, 500V ohm x cm ASDM D257-93 3.1 X 1014 2.3E X 1014
Dielectric Constant 220C, 50% RV, 500V 1000Hz D150-95 2.9 3.7
Dielectric Strength 220C, 50% RV, in air,5V V/sc v/mm D149-95a 1.6 X 1014 1.5 E X 1014
Comparative Tracking Index V D5288-92 and/or IEC standard 112 585, TI-Cu<1mm depth TBD