Project Description
Generality
With our transparent resin printed using Stereolithography it is possible to create complex shapes with a high degree of transparency. The resin we use is one of the rarest used for rapid prototyping to meet the Bio-Compatibility tests of the standard * ISO 10993, 10993-3, 10993-5, 10993-10. It has similar characteristics to the PBT and to the ABS for behavior and appearance.
Propriety
The parts made with resin through Stereolithography have an optimal dimensional stability in the long term and functional properties that makes it one of the most requested prototyping processes.
Liquid properties
| Appearance | Optically transparent, almost colorless |
| Viscosity | ~ 260 cps @ 30 °C |
| Density | ~ 1,12 g/cm³ @ 25 °C |
Mechanical properties
|
Tensile strength at break
|
D638M
|
50,4 MPa
|
|
Breaking elongation
|
D638M |
15.5%
|
|
Elongation to yield
|
D638M |
3%
|
|
Voltage module
|
D638M |
2,770 MPa
|
|
Flexural strength
|
D790M |
68.7 MPa
|
|
Flex module
|
D2240 |
2,205 MPa
|
|
Impact (notched) Izod
|
D256A |
25 J/m
|
|
Water absorption
|
D570-98
|
0.35%
|
Thermal/electric properties
|
C.T.E. -40 -0 °C (-40 -32 °F)
|
E831-05
|
67 μm/m°C
|
|
C.T.E. 0 -50 °C (32 -122 °F)
|
E831-05
|
93 μm/m°C
|
|
C.T.E. 50 -100 ° C (122 -212 °F)
|
E831-05 |
180 μm/m°C
|
|
C.T.E. 100 -150 ° C (212 -302 °F)
|
E831-05
|
187 μm/m°C
|
|
Dielectric constant 60 Hz
|
D150-98
|
4.0
|
|
Dielectric constant 1 KHz)
|
D150-98
|
3.8
|
|
Dielectric constant 1 MHz)
|
D150-98
|
3.5
|
|
Dielectric strength
|
D150-97a
|
15,9 kV/mm
|
|
Tg
|
E1545-00
|
43°C
|
|
HDT @ 0.46 MPa (66 psi)
|
D648
|
50°C
|
|
HDT @ 1.81 MPa (264 psi)
|
D648
|
49°C
|
Finish
Excellent behavior to the surface finish such as sanding and painting and is a suitable support for the application of metal inserts and threading.
Application
The stereolithography allows the realisation of complex shapes and with a high level of transparency. These characteristics make it suitable for the production of parts for the automotive, medical and consumer electronic sectors: particularly for lenses and car lighting, packaging, silicon mold models, wind tunnel tests and quickcast patterns. The parts made thanks to stereolithography lend themselves well to superficial finishes such as sanding and painting and are suitable supports for the application of metal inserts and screw threading.