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Clear Cast Resin

Clear Cast Resin

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

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Clear Cast Resin

Clear Cast Resin

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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

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

Compare Formlabs Castable Resins

Castable Wax Resin
Castable Wax ResinLearn more
Overview

Castable 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.

True Cast Resin
True Cast ResinLearn more
Overview

True 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.

Material properties
Applications

Fine filigree 
Lightweight jewelry
Dental

Medium to heavy jewelry
Medallions
Figurines
Small engineering components up to 5 mm thick

Compatibility

Form 2
Form 3/B/+
Form 3L/BL
Form 4/B
Form 4L/BL

Form 4/B