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DSM Somos® ProtoTherm™ 12120 Water-resistant resin for stereolithography, UV Postcure
| Category | Polymer , Rapid Prototyping Polymer |
| Manufacturer | DSM Somos |
| Trade Name | ProtoTherm™ |
| Port | Shanghai port,China |
| Trade Terms | FOB, CFR, CIF |
| Payment Terms | L/C, T/T, Western Union |
| Download PDF | DSM Somos® ProtoTherm™ 12120 Water-resistant resin for stereolithography, UV Postcure.pdf  |
| Price | EMAIL US sales@lookpolymers.com |
Material Notes:
DescriptionDSM Somos® 12120 is a liquid photopolymer that produces strong, high temperature tolerant, water-resistant parts. Parts created with Somos® 12120 have a cherry-red appearance which turns to an orange-red color after thermal treatment.ApplicationSomos® 12120 differentiates itself from other high temperature stereolithography materials by increasing in tensile strength and maintaining decent elongation at break after thermal treatment. This makes the material ideal for many applications in the automotive and aerospace markets where strong parts that can resist high temperatures are needed.Information Provided by DSM Desotech Inc.
| Physical Properties | Metric | English | Comments |
|---|---|---|---|
| Density | 1.15 g/cc @Temperature 25.0 °C |
0.0415 lb/in³ @Temperature 77.0 °F |
|
| Water Absorption | 0.37 % | 0.37 % | ASTM D570-98 |
| Viscosity | 550 cP @Temperature 30.0 °C |
550 cP @Temperature 86.0 °F |
| Mechanical Properties | Metric | English | Comments |
|---|---|---|---|
| Hardness, Shore D | 85.3 | 85.3 | ASTM D2240 |
| Tensile Strength, Yield | 70.2 MPa | 10200 psi | ASTM D638M |
| Elongation at Break | 4.0 % | 4.0 % | ASTM D638M |
| Modulus of Elasticity | 3.52 GPa | 511 ksi | ASTM D638M |
| Flexural Strength | 109 MPa | 15800 psi | ASTM D790M |
| Flexural Modulus | 3.32 GPa | 482 ksi | ASTM D790M |
| Thermal Properties | Metric | English | Comments |
|---|---|---|---|
| CTE, linear | 58.1 µm/m-°C @Temperature -40.0 - 0.000 °C |
32.3 µin/in-°F @Temperature -40.0 - 32.0 °F |
ASTM E831-00 |
| 80.7 µm/m-°C @Temperature 0.000 - 50.0 °C |
44.8 µin/in-°F @Temperature 32.0 - 122 °F |
ASTM E831-00 | |
| 111.4 µm/m-°C @Temperature 50.0 - 100 °C |
61.89 µin/in-°F @Temperature 122 - 212 °F |
ASTM E831-00 | |
| 136.1 µm/m-°C @Temperature 100 - 150 °C |
75.61 µin/in-°F @Temperature 212 - 302 °F |
ASTM E831-00 | |
| Deflection Temperature at 0.46 MPa (66 psi) | 56.5 °C | 134 °F | ASTM D648-98c |
| Deflection Temperature at 1.8 MPa (264 psi) | 51.9 °C | 125 °F | ASTM D648-98c |
| Glass Transition Temp, Tg | 74.0 °C | 165 °F | ASTM E1545-00 |
| Electrical Properties | Metric | English | Comments |
|---|---|---|---|
| Dielectric Constant | 3.81 @Frequency 1.00e+6 Hz |
3.81 @Frequency 1.00e+6 Hz |
ASTM D150-98 |
| 4.04 @Frequency 1000 Hz |
4.04 @Frequency 1000 Hz |
ASTM D150-98 | |
| 4.14 @Frequency 60.0 Hz |
4.14 @Frequency 60.0 Hz |
ASTM D150-98 | |
| Dielectric Strength | 15.5 kV/mm | 394 kV/in | ASTM D149-97a |
| Descriptive Properties | Value | Comments |
|---|---|---|
| Appearance | Liquid | |
| Dp (mm) | 0.152 | Slope of cure-depth vs. ln(E) curve |
| E10 (mJ/cm2) | 63 | Exposure that gives 0.254mm thickness |
| Ec (mJ/cm2) | 11.8 | Critical exposure |
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