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3D Printing Materials

Robusta G-6321


Functional prototypes that need to be tough
Snap-fit models
Jigs and fixtures

Material Overview

Robusta G has all the benefits and convenience associated with Formula L1 but is significantly stronger, which opens up an additional range of uses. It is best used for parts where toughness is a key requirement, or for master models for vacuum casting. Its texture and bright white color is very similar to that of ABS and other thermoplastics, making it ideal for prototyping and functional testing.



Very strong and durable
Convenient to clean and finish
Highly detailed


Liquid Properties

Measurement Condition Value
Viscosity @ 25 °C (77 °F) 593 cps
Color White
Density @ 25 °C (77 °F) 1.122g/cm³

Optical Properties

Ec(critical exposure) Dp(slop of cure-depth vs.ln(E) curve)
9.36 mJ/cm2 0.14

Mechanical Properties (90 Minutes UV Postcure)

ASTM Method Property Description Value
ASTM D 638 Tensile Modulus 1069 MPa
ASTM D 638 Tensile Strength at Break 57.7 MPa
ASTM D 638 Elongation at Break 5.4%
ASTM D 648 @66PSI Heat Deflection Tempertature 55℃
ASTM D 790 Flexural Strength 70.43 Mpa
ASTM D 790 Flexural Modulus 1304 Mpa
ASTM D 256 Izod Impact (Notched) 49 J/m
ASTM D 2240 Hardness Shore D 81


Subject Download View
ProtoFab Robusta G MSDS
Robusta G
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