Robusta LR-6602

Introduction

Robusta LR is a high tough, white photocurable resin for challenging model processing. Robusta LR is not as strong as Robust G in terms of impact strength and elongation at break, but tensile strength and flexural modulus Robusta LR are higher, thermal performance is superior to Robusta G, and printing accuracy is higher.

Applications

Functional hand model with high toughness requirements
Snap-on model
Fixture

Details

As a high-tough material series, Robusta LR offers better elongation at break and impact strength, and higher thermal performance and precision. It is best suited for models and parts that require high toughness, or prototypes used to make vacuum complexes. Its texture and color are very similar to ABS and other thermoplastics, making it ideal for prototyping and functional testing.

Advantages

Very tough and very durable
Easy to clean
Fine surface texture
High precision

Specification

Liquid Properties

Measurement	Condition	Value
Viscosity	@ 22.8°C (73 °F)	757 cps
Color	Yellow green
Density	@ 25 °C (77 °F)	1.12 g/cm³

Optical Properties

Ec(critical exposure)	Dp(slop of cure-depth vs.ln(E) curve)
8.5-9.3 mJ/cm2	0.125-0.14

Mechanical Properties (90 Minutes UV Postcure)

ASTM Method	Property Description	Value
ASTM D 638	Tensile Modulus	2540-2720 MPa
ASTM D 638	Tensile Strength at Break	64.56 MPa
ASTM D 638	Elongation at Break	5.42%
ASTM D 648 @66PSI	Heat Deflection Tempertature	70℃
ASTM D 790	Flexural Strength	83.59 Mpa
ASTM D 790	Flexural Modulus	1637 Mpa
ASTM D 256	Izod Impact (Notched)	36.08 J/m
ASTM D 2240	Hardness Shore D	85