Tough 2000 V2 Overview
Tough 2000 V2 is a rugged engineering photopolymer with strength and stiffness comparable to ABS, combined with high ductility, temperature resistance, and creep resistance. Its dark matte finish supports presentation-ready functional prototypes, durable housings, manufacturing aids, and selected end-use parts. Final performance should be verified for the intended geometry, loading, temperature, chemical exposure, and service duration.
Design Advantages
- Post-cured tensile strength of 40.4 MPa with 79% elongation at break
- Post-cured flexural modulus of 1,701 MPa and HDT of 70 °C at 0.45 MPa
- Published impact, fracture-toughness, flex-fatigue, creep, and DMA data
- Dark matte finish for rugged enclosures, jigs, fixtures, and production-ready parts
Application Fit
- Robust housings and enclosures exposed to mechanical or thermal stress
- Jigs, fixtures, assembly aids, and durable factory-floor tooling
- ABS-like functional prototypes requiring strength, stiffness, and ductility
- Selected end-use components with a smooth, dark matte appearance
Material Specifications
| Item | Published Value |
|---|---|
| Material family | Tough ABS-like engineering photopolymer |
| Ultimate tensile strength | 40.4 MPa, post-cured |
| Tensile modulus | 1,800 MPa, post-cured |
| Elongation at break | 79%, post-cured |
| Shore hardness | 76D, post-cured |
| HDT at 0.45 MPa | 70 °C, post-cured |
Material Properties
Mechanical, Impact, and Fracture Properties
| Property | Green | Post-Cured | Method |
|---|---|---|---|
| Ultimate tensile strength | 26.1 MPa | 40.4 MPa | ASTM D638-14 |
| Tensile modulus | 1,235 MPa | 1,800 MPa | ASTM D638-14 |
| Tensile strength at yield | 26.1 MPa | 40.4 MPa | ASTM D638-14 |
| Elongation at yield | 5.0% | 4.5% | ASTM D638-14 |
| Elongation at break | 149% | 79% | ASTM D638-14 |
| Flexural strength | 38 MPa | 67 MPa | ASTM D790-17 |
| Flexural modulus | 1,040 MPa | 1,701 MPa | ASTM D790-17 |
| Notched / unnotched Izod | 24 / 323 J/m | 25 / 325 J/m | ASTM D256 / D4812 |
| Notched / unnotched Charpy | 2 / 20 kJ/m2 | 2.4 / 31 kJ/m2 | ISO 179-1 |
| Gardner impact, 0.79 mm | 4.8 J | 1.6 J | ASTM D5420-21 |
| Ross flex fatigue | 11,900 cycles | 3,560 cycles | 23 °C, 30°, 1 Hz |
| Stress intensity Kmax | 1.4 MPa·m1/2 | 1.65 MPa·m1/2 | ASTM D5045-14 |
| Work of fracture | 330 J/m2 | 305 J/m2 | ASTM D5045-14 |
Thermal, Electrical, and General Properties
| Property | Green | Post-Cured | Method |
|---|---|---|---|
| HDT at 1.8 MPa / 0.45 MPa | 45 / 53 °C | 57 / 70 °C | ASTM D648-16 |
| Thermal expansion, 0-150 °C | 142.6 µm/m/°C | 134.2 µm/m/°C | ASTM E831-19 |
| Flammability | Not tested | HB | UL 94 |
| Dielectric strength | — | 15.5 kV/mm | ASTM D149-20 |
| Dielectric constant | — | 3.46 at 50 Hz; 3.38 at 1 kHz | ASTM D150 |
| Dissipation factor | — | 0.018 at 50 Hz; 0.012 at 1 kHz | ASTM D150 |
| Volume resistivity | — | 3 x 1015 Ω·cm | ASTM D257-14 |
| Shore D hardness | 61D | 76D | ASTM D2240 |
| Bulk / liquid density | — | 1.09 / 1.03 g/mL | ASTM D792-20 |
| Liquid viscosity at 25 °C | — | 2,680 cP | Published |
Chemical Compatibility
24-Hour Chemical Weight Gain
| Fluid | 24 H Weight Gain |
|---|---|
| Acetic acid, 5% | 0.17% |
| Acetone | 22.92% |
| Isopropyl alcohol | 4.21% |
| Bleach, about 5% NaOCl | 0.11% |
| Butyl acetate | 18.65% |
| Diesel fuel | 0.08% |
| Diethylene glycol monomethyl ether | 4.65% |
| Hydraulic oil | 0.06% |
| Skydrol 5 | 0.96% |
| Hydrogen peroxide, 3% | 0.21% |
| Isooctane | 21.24% |
| Mineral oil, light | 0.12% |
| Mineral oil, heavy | 0.07% |
| Salt water, 3.5% NaCl | 0.16% |
| Sodium hydroxide, pH 10 | 0.18% |
| Water | 0.19% |
| Xylene | 27.69% |
| Concentrated HCl | 1.96% |
| TPM | 1.86% |
ASTM D543 Property Retention After Immersion
| Fluid | Modulus 1D / 1W | Strength 1D / 1W | Mass 1D / 1W |
|---|---|---|---|
| IPA | 63 / 18% | 66 / 27% | 107 / 119% |
| Acetone | 37 / 45% | 43 / 39% | 139 / 137% |
| NaOH, pH 10 | 93 / 100% | 101 / 97% | 100 / 101% |
| HCl, 10% | 100 / 104% | 102 / 99% | 100 / 100% |
| DI water | 103 / 106% | 102 / 97% | 100 / 101% |
| Hydrogen peroxide, 3% | 100 / 92% | 102 / 93% | 100 / 101% |
| Bleach, about 5% NaOCl | 98 / 95% | 100 / 92% | 100 / 100% |
| Diesel | 93 / 97% | 101 / 92% | 100 / 101% |
| Motor oil | 92 / 98% | 101 / 96% | 100 / 100% |
| Skydrol 5 | 93 / 98% | 101 / 94% | 102 / 103% |
Processing and Design Notes
Published specimens used 100 µm layers, a two-stage 10+5 minute wash in at least 99% isopropyl alcohol, and a 12-minute post-cure at 70 °C. Published creep testing used 4 MPa at 22 °C for 14 days. DMA identified a glass transition at 112.2 °C and storage-modulus inflection at 76.96 °C; these values are not continuous-use ratings.
Published Data and Qualification
Values are published specimen data for design reference; Lucent Additive has not independently generated every value. Geometry, orientation, process settings, post-curing, temperature, and exposure history can change performance. Chemical results do not establish long-term compatibility. Validate representative finished parts under intended loads, duty cycles, temperatures, and fluids.