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Advanced Prototyping offers a wide variety of prototype material options for your project. The technologies associated with rapid prototyping/3D printing (SLS, SLA, etc.) are fairly well known, the growing array of materials available can be a difficult to puzzle to put together. To help our customers choose wisely, the API rapid protoytping materials guide is a quick one page reference tool showing material and physical properties and metrics of SLA materials, SLS materials, and urethane materials for your parts. For custom blends and other materials, call API and we'll find the appropriate specialty prototyping material for your project.
The design features of your application will determine the material used. Most of the materials used are specialized plastics such as polypropylene, nylon, epoxy resins, and urethane. API can ensure that the right 3D prototyping process and material are selected, no matter what your application for the end-use parts.
SLA Materials - Stereolithography
Click on the links to download PDFs.
SLA/Rigid - Accura-55 White
Simulate the look and feel of molded ABS with this tough and versatile plastic.
- Automotive interior parts
- Rigid and durable functional rapid prototypes
- Short-run production parts
- Concept and marketing models
- Electronic components
- Accurate, durable master patterns for urethane casting
- Testing of functional assemblies
Technical Data
Liquid Material
| Measurement | Condition | Value |
|---|---|---|
| Appearance | White | |
| Liquid Density | @ 25 °C (77 °F) | 1.13 g/cm³ |
| Solid Density | @ 25 °C (77 °F) | 1.20 g/cm³ |
| Viscosity | @ 30 °C (86 °F) | 155 - 185 cps |
| Penetration Depth (Dp)* | 5.2 mils | |
| Critical Exposure(Ec)* | 7.4 mJ/cm² | |
| Tested Build Styles | EXACT™, FAST™, EXACT™ HR |
Post-Cured Material
| Measurement | Condition | Metric | U.S. |
|---|---|---|---|
| Tensile Strength | ASTM D 638 | 63 - 68 MPa | 9,200 - 9,850 PSI |
| Tensile Modulus | ASTM D 638 | 3,200 - 3,380 MPa | 460 - 490 KSI |
| Elongation at Break (%) | ASTM D 638 | 5 - 8 % | 5 - 8 % |
| Flexural Strength | ASTM D 790 | 88 - 110 MPa | 12,830 -15,920 PSI |
| Flexural Modulus | ASTM D 790 | 2,690 - 3,240 MPa | 390 - 470 KSI |
| Impact Strength (Notched Izod) | ASTM D 256 | 12 - 22 J/m | 0.2 - 0.4 ft-lb/in |
| Impact Strength (Notched Izod) | ASTM D 5420 | 1.1 J | 0.81 ft - lbs |
| Heat Deflection Temperature | ASTM D 648 @ 66 PSI @ 264 PSI |
55 - 58 °C 51 - 53 °C |
131 - 136 °F 123 - 127 °F |
| Hardness, Shore D | 85 | 85 | |
| Co-Effcient of Thermal Expansion | ASTM E 831-93 TMA (T<Tg, 0-40 °C) TMA (T<Tg, 75-140 °C) |
61 x μm/m -°C 163 μm/m -°C |
141 μin/in - °F 326 μin/in - °F |
| Glass Transition (Tg) | DMA, E" | 56 °C | 132°F |
Ultra-tough grey plastic with outstanding durability, accuracy and aesthetics to replace CNC-machined polypropylene and ABS articles.
Fast and easy to process, the Accura Xtreme material offers physical properties that are close enough to durable end-use plastics like ABS and polypropylene to make it ideal for functioning prototypes in demanding applications, as well as for short-run production projects. Accura Xtreme is a grey plastic with the appearance of a final production part with outstanding durability, impact resistance, accuracy and a thermal resistance over 60° C.
Post-Cured Material
| Measurement | Condition | Metric | U.S. |
|---|---|---|---|
| Tensile Strength (MPa)/PSI) |
ASTM D 638 | 38-44 | 5510-6380 |
| Tensile Modulus (MPa/KSI) |
ASTM D 638 | 1790-1980 | 260-287 |
| Elongation at Break (%) | ASTM D 638 | 14-22 | 14-22 |
| Flexural Strength (MPa/KSI) |
ASTM D 790 | 57-71 | 7540-10300 |
| Flexural Modulus (MPa/KSI) |
ASTM D 790 | 1520-2070 | 220-300 |
| Impact Strength (J/m /Ft-lbs/in) |
ASTM D 256 | 35-52 | 0.66-0.98 |
| Heat Deflection Temperature |
ASTM D 648 @ 66 PSI @ 264 PSI |
62 °C 54 °C |
144 °F 129 °F |
| Glass Transition (Tg) | 70-74 °C | 158-165 °F |
Liquid Material
| Measurement | Condition | Value |
|---|---|---|
| Viscosity | @ 30 °C (86 °F) | 250-300 cps |
| Penetration Depth (Dp) | 4.1 mils | |
| Critical Exposure (Ec) | 11.7 mJ/cm2 | |
| Color | Grey | |
| Solid Density | @ 25 °C (77 °F) | 1.19 g/cm3 |
| Liquid Density | @ 25 °C (82 °F) | 1.13 g/cm3 |
| Tested Build Styles | EXACT™ |
SLA/Rigid - DSM-10122 Clear
DSM Somos® WaterClear Ultra 10122 is a next generation optically clear resin with ABS like properties and good temperature resistance. In SLA rapid prototyping, it produces colorless, functional, accurate parts that simulate acrylic in appearance. Based on the Oxetane Advantage™, the parts also have improved water resistance over the original WaterClear 10120 resin. WaterClear Ultra is a fast, low viscosity, general-purpose resin.
Mechanical Properties (Metric)
| ASTM Method | Description | Somos® WaterClear® Ultra UV Postcure | Acrylic |
|---|---|---|---|
| D638M | Tensile Strength Tensile Modulus Elongation at Break Elongation at Yield Poisson's Ratio |
55 - 56 MPa 2,860 - 2,900 MPA 6 - 9 % 4 % 0.40 - 0.42 |
47 - 79 MPa 2,200 - 3,800 MPa 1 - 30 % 4 % 0.37 - 0.45 |
| D790M | Flexural Strength Flexural Modulus |
82 - 85 MPa 2,410 - 2,570 MPa |
88 - 138 MPa 3,000 - 3,500 MPa |
| D256A | Izod Impact-Notched | 0.24 - 0.26 J/cm | 0.15 J/cm |
| D2240 | Hardness (Shore D) | 86 - 87 | 63 - 97 |
| D570-98 | Water Absorption | 1.1 % | 0.3 - 2.0 % |
| D542 | Index of Refraction | 1.515 | 1.498 |
Thermal & Electrical Properties (Metric)
| ASTM Method | Description | Somos® WaterClear® Ultra UV Postcure | Acrylic |
|---|---|---|---|
| E831-00 | C. T. E. -40°C – 0°C C. T. E. 0°C – 50°C C. T. E. 50°C – 100°C C. T. E. 100°C – 150°C |
63.6 - 66.8 μm/m- °C 87.8 - 93.0 μm/m- °C 164.3 - 171.9 μm/m- °C 149.9 - 167.1 μm/m- °C |
|
| D150-98 | Dielectric Constant 60Hz Dielectric Constant 1KHz Dielectric Constant 1MHz |
3.0 - 3.2 3.3 - 3.6 3.0 - 3.2 |
4.0 3.5 3.0 |
| D149-97a | Dielectric Strength | 14.5 - 15.5 kV/mm | 18 - 60 kV/mm |
| E1545-00 | Tg | 42 - 46 °C | 100 - 105 °C |
| D648-98c | HDT@ 0.46 MPa HDT @ 1.82 MPa |
46 - 47 °C 42 - 43 °C |
80 - 103 °C 80 - 103 °C |
| Thermal postcure | |||
| HDT @ 0.46 MPa | 59 - 61 °C | ||
| HDT @ 0.46 MPa | 59 - 61 °C | ||
Mechanical Properties (Imperial)
| ASTM Method | Description | Somos® WaterClear® Ultra UV Postcure | Acrylic |
|---|---|---|---|
| D638M | Tensile Strength Tensile Modulus Elongation at Break Elongation at Yield Poisson's Ratio |
7.9 - 8.1 ksi 414 - 421 ksi 6 - 8 % 4 % 0.40 - 0.42 |
6.8 - 11.5 ksi 319 - 551 ksi 1 - 30 % 4 % 0.37 - 0.45 |
| D790M | Flexural Strength Flexural Modulus |
11.8 - 12.4 ksi 349 - 373 ksi |
12.8 - 20.0 ksi 435 - 508 ksi |
| D256A | Izod Impact-Notched | 0.44 - 0.48 ft-lb/in | 0.3 ft-lb/in |
| D2240 | Hardness (Shore D) | 86 - 87 | 63 - 97 |
| D570-98 | Water Absorption | 1.1 % | 0.3 - 2.0 % |
| D542 | Index of Refraction | 1.515 % | 1.498 |
Thermal & Electrical Properties (Imperial)
| ASTM Method | Description | Somos® WaterClear® Ultra UV Postcure | Acrylic |
|---|---|---|---|
| E831-00 | C. T. E. -40°F – 32°F C. T. E. 32°F – 122°F C. T. E. 122°F – 212°F C. T. E. 212°F – 302°F |
35.3 - 37.1 μin/in- °F 48.8 - 51.7 μin/in- °F 91.3 - 95.5 μin/in- °F 83.3 - 92.9 μin/in- °F |
|
| D150-98 | Dielectric Constant 60Hz Dielectric Constant 1KHz Dielectric Constant 1MHz |
3.0 - 3.2 3.3 - 3.6 3.0 - 3.2 |
4.0 3.5 3.0 |
| D149-97a | Dielectric Strength | 367 - 393 V/mil | 456 - 1520 V/mil |
| E1545-00 | Tg (TMA) | 108 - 115°F | 212 - 221°F |
| D648-98c | HDT@ 66 psi HDT @ 264 psi |
115 - 116 °F 108 - 110 °F |
176 - 217 °F 176 - 217 °F |
| Thermal postcure | |||
| HDT @ 66 psi | 139 - 142 °F | ||
| HDT @ 264 psi | 120 - 122 °F | ||