About |
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DSM’s Somos® ProtoGen 18920 is a liquid photopolymer that produces accurate, ABS-like parts ideal for general purpose applications. Somos® ProtoGen resins are the first stereolithography resins to demonstrate different material properties based on machine exposure control. Based on Somos® Oxetane™ chemistry, Somos® ProtoGen 18920 offers superior chemical resistance, a wide processing latitude and excellent tolerance to a broad range of temperature and humidity, both during and after the build. Applications This high-temperature resistant, ABS-like photopolymer is used in solid imaging processes, such as stereolithography, to build three-dimensional parts. Somos® ProtoGen 18920 provides considerable processing latitude and is ideal for the medical, electronic, aerospace and automotive markets that demand accurate RTV patterns, durable concept models, highly accurate humidity & temperature resistant parts.&& |
Product Description | |
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Supplier | DSM |
Generic | 3D打印材料 |
Material Status | Commercial: Active |
Features | High Heat Resistance,Moisture resistance,Durability,Solvent resistance |
Availabilitys | North America,Asia Pacific,Europe |
Technical Data | |||
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PHYSICAL | Nominal value | Unit | Test method |
Density | 1.16 | g/cm³ | |
Water absorption rate | ASTM D570 | ||
balance | 0.78 | % | ASTM D570 |
balance | 0.38 | % | ASTM D570 |
balance | 0.74 | % | ASTM D570 |
viscosity | |||
30℃ | 0.35 | Pa·s |
IMPACT | Nominal value | Unit | Test method |
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Impact strength of cantilever beam notch | ASTM D256A | ||
— | 14 to 28 | J/m | ASTM D256-A |
— | 20 to 24 | J/m | ASTM D256-A |
— | 22 to 26 | J/m | ASTM D256-A |
THERMAL | Nominal value | Unit | Test method |
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Hot deformation temperature | ASTM D648 | ||
0.45 MPa, unannealed | 58.7 | ℃ | ASTM D648 |
0.45 MPa, unannealed | 96.5 | ℃ | ASTM D648 |
1.8 MPa, unannealed | 78.6 | ℃ | ASTM D648 |
1.8 MPa, unannealed | 51.0 | ℃ | ASTM D648 |
Glass transition temperature | ASTM E1545 | ||
— | 68.9 | ℃ | ASTM E1545 |
— | 97.5 | ℃ | ASTM E1545 |
Linear coefficient of thermal expansion | |||
MD | |||
-40 to 0 ℃ | 6.5E-5 | cm/cm/℃ | ASTM E831 |
-40 to 0 ℃ | 6.9E-5 | cm/cm/℃ | ASTM E831 |
0 to 50 ℃ | 7.4E-5 | cm/cm/℃ | ASTM E831 |
50 to 100 ℃ | 7.9E-5 | cm/cm/℃ | ASTM E831 |
50 to 100 ℃ | 1.1E-4 | cm/cm/℃ | ASTM E831 |
100 to 150 ℃ | 1.3E-4 | cm/cm/℃ | ASTM E831 |
100 to 150 ℃ | 1.4E-4 | cm/cm/℃ | ASTM E831 |
Electrical performance | Nominal value | Unit | Test method |
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Dielectric strength | ASTM D149 | ||
— | 15 to 16 | kV/mm | ASTM D149 |
— | 14 to 15 | kV/mm | ASTM D149 |
Dielectric constant | ASTM D150 | ||
60 Hz | 3.53 | ASTM D150 | |
60 Hz | 3.28 | ASTM D150 | |
1 kHz | 3.23 | ASTM D150 | |
1 kHz | 3.44 | ASTM D150 | |
1 MHz | 3.21 | ASTM D150 | |
1 MHz | 3.04 | ASTM D150 |
Supplementary information | Nominal value | Unit | Test method |
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Critical Exposure | 7.00 | mJ/cm² | |
Penetration depth | 106.7 | µm |
MECHANICAL | Nominal value | Unit | Test method |
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Shore hardness | ASTM D2240 | ||
Shaw’s D | 85 to 86 | ASTM D2240 | |
Shaw’s D | 86 to 88 | ASTM D2240 | |
Shaw’s D | 86 to 87 | ASTM D2240 | |
Tensile modulus | ASTM D638 | ||
— | 2100 to 2320 | MPa | ASTM D638 |
— | 2540 to 2920 | MPa | ASTM D638 |
— | 2580 to 2620 | MPa | ASTM D638 |
tensile strength | ASTM D638 | ||
— | 46.6 to 47.8 | MPa | ASTM D638 |
— | 56.1 to 56.9 | MPa | ASTM D638 |
— | 69.2 to 69.6 | MPa | ASTM D638 |
Tensile strain | ASTM D638 | ||
fracture | 5.0 to 12 | % | ASTM D638 |
fracture | 4.0 to 9.0 | % | ASTM D638 |
fracture | 13 to 19 | % | ASTM D638 |
Bending modulus | ASTM D790 | ||
— | 2440 to 2520 | MPa | ASTM D790 |
— | 2500 to 2700 | MPa | ASTM D790 |
— | 2130 to 2310 | MPa | ASTM D790 |
bending strength | ASTM D790 | ||
— | 85.0 to 87.0 | MPa | ASTM D790 |
— | 92.1 to 98.1 | MPa | ASTM D790 |
— | 73.0 to 75.0 | MPa | ASTM D790 |
Notes |
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1. Typical properties: these are not to be construed as specifications. |
2. UV Postcure at HOC +3 |
3. UV Postcure & Thermal Postcure |
4. UV Postcure at HOC -2 |
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