rubbery resin. shore 60–80A. gaskets, soft parts. trivially fragile after cure.
When you want a genuinely soft cured part: gaskets, seals, soft cosplay parts, ergonomic grips. Flexible resin is not truly TPU-equivalent but close.
| Formula | urethane acrylate |
|---|---|
| Density | 1.1 g/cm³ |
| Tg (glass transition) | 25°C |
| Nozzle temp | 0–0°C |
| Bed temp | 0–0°C |
| Enclosure | wash + cure station |
| Difficulty | ★★★: intermediate |
Engineer, author of The Big Book of 3D Printing and additive manufacturing expert
| Formula | urethane acrylate |
|---|---|
| Density (g/cm³) | 1.1 |
| Tg (°C) | 25 |
| Print ease (0-10) | 4 |
| Tensile (0-10) | 4 |
| Flexibility (0-10) | 9 |
| Impact resistance (0-10) | 8 |
| Heat resistance (0-10) | 3 |
| UV resistance (0-10) | 2 |
| Chemical resistance (0-10) | 4 |
| Cost (0-10) | 5 |
| Safety (0-10) | 4 |
| Finishing (0-10) | 8 |
| Bed adhesion (0-10) | 7 |
| Accuracy (0-10) | 7 |
| Property | Flexible Resin | Castable Resin | Dental Resin | High-Temp Resin |
|---|---|---|---|---|
| Print ease | 4 | 4 | 5 | 4 |
| Tensile | 4 | 3 | 6 | 7 |
| Flexibility | 9 | 2 | 3 | 2 |
| Impact resistance | 8 | 2 | 5 | 4 |
| Heat resistance | 3 | 1 | 6 | 9 |
| UV resistance | 2 | 2 | 5 | 3 |
| Chemical resistance | 4 | 3 | 7 | 6 |
| Cost | 5 | 3 | 1 | 2 |
| Safety | 4 | 4 | 10 | 4 |
| Finishing | 8 | 10 | 10 | 9 |
| Bed adhesion | 7 | 7 | 8 | 8 |
| Accuracy | 7 | 10 | 10 | 9 |
Compatible printers: 116