SLA / DLP · Resins · Flexible
Flexible / elastic resin
Rubber-like, high-detail gaskets, grips and soft-touch prototypes.
What is Flexible / elastic resin?
Flexible and elastic resins produce rubber-like parts in the 50A – 80A Shore hardness range. They suit gaskets, grip overmolds, wearable prototypes and medical models.
- Flexible
- Fine detail
Technical data
Typical values compiled from common manufacturer datasheets; they vary by brand and grade.
| Hardness | 50A – 80A Shore |
|---|---|
| Tensile strength | ≈ 3 – 9 MPa |
| Elongation at break | ≈ 100 – 160% |
Design guidelines for Flexible / elastic resin
General guidelines for SLA technology. All design guidelines
- Minimum wall thickness0.5 mm (supported) / 1 mm
- Smallest detail0.2 mm
- Clearance for moving parts0.2 – 0.4 mm
- Text and logosEmbossed ≥ 0.3 mm, engraved ≥ 0.4 mm
- Minimum hole diameterØ 0.5 mm
- Unsupported overhang angle≥ 30° from horizontal; flatter surfaces need support
- Escape holeØ 3.5 mm drain hole in hollow parts
Applications
- Gasket and seal prototypes
- Grips and overmolds
- Wearable product prototypes
Advantages
- Finely detailed flexible parts
- Soft touch
Limitations
- Lower tear strength than TPU
- Can harden over time
Comparison
Flexible / elastic resin and alternatives
| Property | Flexible / elastic resin | TPU 95A | TPU / TPE (SLS / MJF) | Rubber-like photopolymer |
|---|---|---|---|---|
| Density | 1.1 g/cm³ | 1.21 g/cm³ | 1.1 g/cm³ | 1.15 g/cm³ |
| Tensile strength | 6 MPa | 35 MPa | 9 MPa | 3 MPa |
| Elongation at break | 130 % | 800 % | 280 % | 240 % |
| Modulus (stiffness) | 0.01 GPa | — | 0.08 GPa | 0.01 GPa |
| Heat deflection (0.45 MPa) | — | — | — | — |
Values are averages of typical ranges; see each material page for details.
Good to know
Frequently asked questions about Flexible / elastic resin
What is Flexible / elastic resin?
Flexible and elastic resins produce rubber-like parts in the 50A – 80A Shore hardness range. They suit gaskets, grip overmolds, wearable prototypes and medical models.
Is Flexible / elastic resin heat resistant?
The heat deflection value of Flexible / elastic resin varies by grade and application; for parts working in hot environments, you can consult our engineers.
Can Flexible / elastic resin be used outdoors?
It can degrade under prolonged sunlight and UV light. For outdoor use, ASA or another UV-resistant material should be preferred.
Which parts are made with Flexible / elastic resin?
Flexible / elastic resin is typically used in applications such as gasket and seal prototypes, grips and overmolds, wearable product prototypes.
Which material can be used instead of Flexible / elastic resin?
Depending on the application, TPU 95A, TPU / TPE (SLS / MJF), Rubber-like photopolymer can be alternatives. You can see the differences in the comparison tables on the material pages.
Does TAİ Robotik produce with Flexible / elastic resin?
For Flexible / elastic resin, send us your part's dimensions, quantity and operating conditions; we will determine the best production route and, if needed, an equivalent alternative together.
Let's choose the right material together
Tell us your needs for this material or an alternative we can produce.