
- Print Technology
- SLA
- Colors
- Transparent
- Characteristics
- High Accuracy, Fine Details
- Applications
- Investment 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
- Applications
Demanding engineering applications over 3 mm thick
- Compatibility
Form 2
Form 3/B/+
Form 3L/BL
Form 4/B
Form 4L/BL
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.
- Print Technology
- SLA
- Colors
- Transparent
- Characteristics
- High Accuracy, Fine Details
- Applications
- Investment 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
- Applications
Demanding engineering applications over 3 mm thick
- Compatibility
Form 2
Form 3/B/+
Form 3L/BL
Form 4/B
Form 4L/BL
Select Printer Series and Resin Volume
Bulk Order Discount
- 15%
- 30 L
- 20%
- 60 L
- 25%
- 120 L
- 30%
- 240 L
- 35%
- 1,000 L
- 40%
- 2,000 L
- 45%
- 3,000 L
Compatibility
- 3D Printer
- Form 4L, Form 4BL, Form 4, Form 4B, Form 3, Form 3L, Form 3B, Form 3BL, Form 2
- 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
- Tank
- Form 2 Resin Tank (PDMS), Form 2 LT Tank, Form 3 Resin Tank V2.1, Form 3L Resin Tank V3, Form 4 Resin Tank
Clear Cast Resin—
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 which reduces costs, decreases turnaround times, and improves flexibility in iterating 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.
Mechanical and Burnout Properties
Download the Clear Cast Resin Technical Data Sheet
Read the Investment Casting White Paper
| 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
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
Compare Formlabs Castable Resins
Learn moreCastable Wax Resin is a 20% wax-filled material for casting that can capture intricate features and offers a smooth surface finish for accurate castings with zero ash content and clean burnout. It is ideal for ultrafine structures in jewelry.
Castable Wax Resin offers high strength and stiffness, making it capable of printing ultrafine structures. The high green strength ensures excellent shape retention for thin patterns such as wire filigree.
Learn moreTrue Cast Resin is a wax-filled material designed for precision casting of intricate jewelry to complex engineering components up to 5 mm thick. It delivers highly accurate parts with exceptional detail and smooth surfaces.
Engineered for reliability, quality, and versatility, True Cast Resin integrates easily into a wide range of burnout schedules. Low thermal expansion, minimal shrinkage, and 0.03% ash content ensure clean burnout and consistently excellent casting outcomes.
Fine filigree
Lightweight jewelry
Dental
Medium to heavy jewelry
Medallions
Figurines
Small engineering components up to 5 mm thick
Form 2
Form 3/B/+
Form 3L/BL
Form 4/B
Form 4L/BL
Form 4/B
