Somos Element Material Properties
Behaviour and use
Material Overview
Through continuous interaction with Somos customers, pattern makers and foundries, Somos® developed the groundbreaking stereolithography resin Somos® Element — the new standard for producing Investment Casting patterns.
Somos® Element is an antimony-free stereolithography material that has been specifically designed to improve the repeatability and quality of 3D printed casting patterns. Patterns created with Somos® Element leave trace amounts of lightweight, easily-removable ash residue after burnout and have good green strength, so there’s no worry of breakage during handling, while being dimensionally stable during storage. Any residue that is left behind is easily removed, leaving a perfectly clean void in the ceramic mold. This translates into lower mold prep times and lower rates of rework, saving customers time and money.
Key Benefits
- Trace amounts of ash that are lightweight and easily removed
- Suitable for high-end alloy castings
- Rapid draining
- Produces accurate, repeatable parts regardless of size
Ideal Applications
- Investment Casting
Somos Element Specification & Features
| Liquid Properties | Optical Properties | |||
|---|---|---|---|---|
| Appearance | Clear | EC | 10 mJ/cm² | [critical exposure] |
| Viscosity | ~125 cps @ 30°C | DP | 5.2 mils | [slope of cure-depth vs. In (E) curve] |
| Density | 1.11 g/cm @ 25°C | E10 | 68.4 mJ/cm² | [exposure that gives 0.254 mm (.010 inch) thickness] |
| Mechanical Properties | UV Postcure | ||
|---|---|---|---|
| ASTM Method | Property Description | Metric | Imperial |
| D638-14 | Tensile Modulus | 3,170 MPa | 460 ksi |
| D638-14 | Tensile Strength at Break | 53 MPa | 7.7 ksi |
| D638-14 | Elongation at Break | 2.3% | |
| D570-98 | Water Absorption | 0.36% | |
| D790-15e2 | Flexural Strength | 114 MPa | 16.6 ksi |
| D790-15e2 | Flexural Modulus | 3,230 MPa | 468 ksi |
| D256-10e1 | Izod Impact (Notched) | 22 J/m | 0.41 ft-lb/in |
| D2240-05 | Durometer Hardness | 86 | |
| Thermal/Electrical Properties | UV Postcure | ||
|---|---|---|---|
| ASTM Method | Property Description | Metric | Imperial |
| E831-13 | C.T.E. -40 - 0°C (-40 - 32°F) | 56.8 µm/m°C | 31.5 µin/in°F |
| E831-13 | C.T.E. 0 - 50°C (32 - 122°F) | 75.7 µm/m°C | 42.1 µin/in°F |
| E831-13 | C.T.E. 50 - 100°C (122 - 212°F) | 137 µm/m°C | 76.1 µin/in°F |
| E831-13 | C.T.E. 100 - 150°C (212 - 302°F) | 142 µm/m°C | 78.9 µin/in°F |
| D150-11 | Dielectric Constant 60 Hz | 3.7 | |
| D150-11 | Dielectric Constant 1 KHz | 3.6 | |
| D150-11 | Dielectric Constant 1 MHz | 3.4 | |
| D149-09 | Dielectric Strength | 18.3 kV/mm | 465 V/mil |
| E1545-11 | Tg | 58°C | 136°F |
| D648-16 | HDT @ 0.46 MPa (66 psi) | 58°C | 136°F |
| D648-16 | HDT @ 1.81 MPa (264 psi) | 53°C | 127°F |
| Burnout Properties | |||
|---|---|---|---|
| Method | Property Description | ||
| ICP | Antimony Content | Not detectable (<3 ppm) | |
| TGA | Ash Content | <0.005 % | |
SLA 3D Printing & Post-processing Machines
Machines that can 3D print and post-process Somos Element parts
Stratasys Neo Stereolithography
Stratasys Neo Stereolithography SLA Resin 3D Printers for prototyping, tooling and master patterns with superior surface quality and accuracy.
Need to 3D print with Somos Element?
Call us free at 1-877-219-6757 to speak to an expert, or send us your CAD model and we'll 3D print it with Somos Element material