Durform PA and GF

DURAFORM PA AND GF

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.

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: T_m	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

⁽¹⁾ Results were based on volume distribution of particles.

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