SLA / DLP · Resins · Specialty
Castable resin
A pattern resin that burns out cleanly in plaster molds; jewelry and precision casting.
What is Castable resin?
Castable resins are formulated with wax content and burn out in the casting furnace without leaving ash. They are used to produce patterns for lost-wax casting of jewelry, dental frameworks and small precision metal parts.
- Fine detail
Technical data
Typical values compiled from common manufacturer datasheets; they vary by brand and grade.
| Use | Lost-wax casting pattern |
|---|---|
| Burnout | Low ash content (typically < 0.1%) |
| Layer thickness | 25 – 50 µm |
Design guidelines for Castable 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
- Ring and jewelry patterns
- Dental casting frameworks
- Patterns for precision metal parts
Advantages
- Mold-free, one-off casting
- Fine details preserved in casting
Limitations
- Patterns are fragile and must be handled carefully
- Casting parameters are sensitive
Comparison
Castable resin and alternatives
| Property | Castable resin | Sterling silver 925 | Gold (14K / 18K) | Brass |
|---|---|---|---|---|
| Density | 1.1 g/cm³ | 10.4 g/cm³ | 14.2 g/cm³ | 8.5 g/cm³ |
| Tensile strength | — | — | — | — |
| Elongation at break | — | — | — | — |
| Modulus (stiffness) | — | — | — | — |
| Heat deflection (0.45 MPa) | — | — | — | — |
Values are averages of typical ranges; see each material page for details.
Good to know
Frequently asked questions about Castable resin
What is Castable resin?
Castable resins are formulated with wax content and burn out in the casting furnace without leaving ash. They are used to produce patterns for lost-wax casting of jewelry, dental frameworks and small precision metal parts.
Is Castable resin heat resistant?
The heat deflection value of Castable resin varies by grade and application; for parts working in hot environments, you can consult our engineers.
Can Castable 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 Castable resin?
Castable resin is typically used in applications such as ring and jewelry patterns, dental casting frameworks, patterns for precision metal parts.
Which material can be used instead of Castable resin?
Depending on the application, Sterling silver 925, Gold (14K / 18K), Brass can be alternatives. You can see the differences in the comparison tables on the material pages.
Does TAİ Robotik produce with Castable resin?
For Castable 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.
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Tell us your needs for this material or an alternative we can produce.