- Stock: In Stock
- Model: Clear Cast
- Weight Brutto: 1.51kg
- SKU: RS-F2-CCCL-01
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Formlabs Clear Cast Resin for injection molds 3D printing
Formlabs Clear Cast Resin is designed specifically for the production of engineering components by metal investment casting.
It is a high-precision material used to print casting patterns with an accuracy of up to 25 microns, designed for the production of parts with a wall thickness of more than 3 mm. The resin has extremely low thermal expansion, low ash content, and no traces of heavy metals.
The Formlabs Clear Cast Resin 1 liter cartridge is designed for 3D printing on Formlabs Form 3 Series printers of precise, low-ash models for investment casting directly in your workshop.
Clear Cast Resin is recommended for use with larger parts in combination with gridding software, allowing for geometries over 3 mm thick.
Main advantages
- Affordable in-house template production. Clear Cast Resin allows you to directly produce casting patterns on Formlabs Form 3 series SLA 3D printers without outsourcing. This reduces costs, shortens lead times, and improves iteration and production flexibility.
- Clean burn. Clear Cast resin provides a clean burn with low ash content and no trace metals, leaving nothing to contaminate the final cast part.
- Low thermal expansion. Best-in-class thermal expansion for reliable casting shells with minimal cracking.
- Precise and versatile. Create accurate models within 0.25 mm of the design. Compatible with any metal or shell system, enabling foundries to cast new designs in record time
- Built on experience. Formlabs manufactures industry-leading resins for third-party large SLA printers in its state-of-the-art Ohio facility and uses this experience to develop Clear Cast Resin for its own SLA printers.

Clear Cast Resin applications
Today, investment casting is used in many industries that require individual production of precision metal parts: engine parts, turbines, medical implants, surgical instruments, dental prostheses, jewelry, souvenirs and decorative elements, various complex components for industry, etc.

3D printing of burn-in models for investment casting
Investment casting (also known as lost-model casting or precision casting) is a high-precision method of producing metal parts that allows for the production of products with complex shapes and high precision. This process has a long history, but thanks to modern technology, it has reached a new level of development.
How does investment casting work?
The main idea behind investment casting is to 3D print an exact copy of a future part. The traditional way to produce such a copy was to create it from wax, which was a rather time-consuming method.
The 3D-printed copy of the part is then covered with a refractory material. After the refractory mixture has hardened, the wax is melted, forming a cavity of the exact shape of the part. Molten metal is poured into this cavity, filling the entire space and taking the shape of the wax model. After cooling and removal of the casting system, the finished product is obtained.

Burnable resins in the Formlabs library
Clear Cast Resin is one of the materials developed by Formlabs for the needs of lost foam casting.
Unlike Castable Wax Resin, which is designed for small filigree jewelry, and Castable Wax 40 Resin, which is designed for casting more massive jewelry, Clear Cast Resin occupies a niche in 3D printing molds for casting large engineering metal parts. Unlike other resins, Clear Cast Resin excels in printing large parts and in the process of burning a large cavity without cracking the ceramic coating.
Mechanical and Burnout Properties
- Ultimate Tensile Strength - 65 MPa
- Tensile Modulus - 2.8 GPa
- Flexural Modulus - 2.2 GPa
- Thermal Expansion, -30-140 °C - 94.8 μm/m/°C
- Ash Content - <0.20%
- Antimony - <10 ppm
- Detected Transition Metals (>10 ppm) - Al, Cu
- High Concentration Transition Metals (>50 ppm) - None
Buy Clear Cast Resin for Form 3 in Poland
See the Data Sheets of the Formlabs Clear Cast Resin on "Download Data Sheets" tab
| Details | |
| Printing Technology | SLA/LFS |
| Layer Height (µm) | 50, 100 |
| Printer Compatibility | Form 3/3+, Form 3B/3B+ |
| Resin Tank Compatibility | Form 2 RT (PDMS), Form 2 LT RT, Form 3/3B RT V1/V2/V2.1, Form 3L/3BL RT V1/V2/V3 |
| Build Platform Compatibility | Form 3 BP, Form 3 BP 2, Form 3 Stainless Steel BP, Form 3L BP, Form 3L BP 2L |
| Volume (L) | 1 |
| Manufacturer Country | USA |
| Material Parameters | |
| Polymerization Needed | Needed |
| Biocompatibility | No |