Formlabs Clear Cast Resin (Form 4) 1 L
£150.00
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Clear Cast Resin is a resin designed for investment casting, to directly print patterns that can be invested and cast. It has an extremely low thermal expansion, low ash, and no trace heavy metals.
Clear Cast Resin, paired with a latticing software, is recommended for use with larger parts, excelling at producing geometries thicker than 3 mm.
| Specification | Value |
|---|---|
| Print Technology | SLA |
| Minimum Layer Thickness | 25 micron |
| Applications | Models & Props, Rapid Tooling, End-Use Parts, Rapid Prototyping, Investment Casting |
| Colours | Transparent |
| Categories | Specialty, Casting |
| Tensile Modulus | 2800.0 MPa |
| Flexural Modulus | 2200.0 MPa |
| Ultimate Tensile Strength | 65.0 MPa |
| Elongation at Break | 6.0% |
| Notched Izod | 25.0 J/m |
| Thermal Expansion | 94.8 μm/m/°C |
| Heat Deflection Temp. @ 0.45 MPa | 73.0 °C |
| Heat Deflection Temp. @ 1.8 MPa | 58.0 °C |
Compatibility
Compatible Tank: Form 4 Resin Tank, Form 2 Resin Tank (PDMS), Form 2 LT Tank, Form 3 Resin Tank V2.1, Form 3L Resin Tank V3
Compatible Build Platform: Form 4 Build Platform, Form 4 Flex Build Platform, Form 3 Build Platform, Form 3 Build Platform 2, Form 3 Stainless Steel Build Platform, Form 3L Build Platform, Form 3L Build Platform 2L, Form 4L Build Platform, Form 4L Flex Build Platform
Compatible Printer: Form 4, Form 4B, Form 4L, Form 4BL, Form 3, Form 3L, Form 3B, Form 3BL, Form 2
Why Choose Clear Cast Resin?
Clear Cast Resin is an accessible solution for directly printing casting patterns in house.
Accessible Pattern Production In-House
Clear Cast Resin on Formlabs SLA printers enables direct production of casting patterns in-house, reducing costs, decreasing turnaround times, and improving flexibility in iteration and production.
Low Thermal Expansion
Best-in-class thermal expansion for reliable casting shells with minimal cracking.
Clean Burnout
Clear Cast Resin achieves a clean burnout with low ash and no trace metals, leaving nothing to contaminate the final cast part. Clear Cast Resin is fully antimony free.
Accurate and Versatile
Create accurate patterns within 0.25 mm of the design. Compatible with any metal or shelling system, allowing foundries to cast new designs in record time.
Workflow for 3D Printing Investment Casting Patterns
3D printed patterns can be used to directly replace the moulded wax patterns typically used for investment casting, allowing for complex geometries and faster iterations without dedicated tooling.
- Shell, lattice, and add drain holes to the part with a tool like Materialise Magics or Formware.
- Orient, support, and slice the pattern in PreForm.
- Print the pattern.
- Wash, post-cure, and remove supports.
- Plug any drain holes with wax or cure a small amount of Clear Cast Resin over the hole.
- Attach the pattern to a casting tree and proceed with the rest of the casting process.
Applications
Clear Cast Resin is recommended for demanding engineering applications over 3 mm thick.
Investment Casting
Directly print patterns that can be invested and cast without dedicated tooling.
Rapid Tooling
Create casting patterns quickly for shorter lead times and faster design iteration.
Engineering Applications
Suitable for larger geometries and demanding applications over 3 mm thick.
Mechanical and Burnout Properties
Download the Clear Cast Resin Technical Data Sheet
| Parameter | Value |
|---|---|
| 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 |
Post-Processing
Washing
The foundational step in any SLA post-processing workflow is to remove any excess resin on the surface of the parts through an alcohol or ether wash.
Settings: Form Wash | Form Wash L
Curing
Post-curing Engineering and Specialty Resins is essential for parts to achieve their full strength and functionality. This step completes the chemical reaction initiated during printing, transforming the part from its green state into a fully finished component.
Settings: Form Cure V1 | Form Cure V2 | Form Cure L V1 | Form Cure L V2
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