
- Print Technology
- SLA
- Characteristics
- Stiff & Strong, Heat Resistant, Robust, Low Creep, UL94 V0 Certified
- Tensile Modulus
- 3100.0 MPa
- Ultimate Tensile Strength
- 41.0 MPa
- Flexural Strength
- 75.0 MPa
- Notched Izod
- 22.0 J/m
- Unnotched Izod
- 257.0 J/m
- Elongation at Break
- 7.1 %
- Heat Deflection Temp. @ 1.8 MPa
- 83.0 °C
- Heat Deflection Temp. @ 0.45 MPa
- 111.0 °C
- Thermal Expansion
- 68.1 μm/m/°C
- Flexural Modulus
- 2700.0 MPa
Flame Retardant Resin is a specialty UL 94 Blue Card-certified material for creating self-extinguishing and halogen-free parts with favorable flame, smoke, and toxicity (FST) ratings. Use FR Resin to easily 3D print flame-retardant, heat-resistant, stiff, and creep-resistant parts that will perform well long-term in indoor and industrial environments with high temperatures or ignition sources.
Tests and certifications include: UL 94 V-0 at 3 mm thickness for flammability; FAR 25.853 Appendix F, Part I for flammability; and ASTM E662 for FST. For full test results and certifications, see the Technical Data Sheet.
- Print Technology
- SLA
- Characteristics
- Stiff & Strong, Heat Resistant, Robust, Low Creep, UL94 V0 Certified
- Tensile Modulus
- 3100.0 MPa
- Ultimate Tensile Strength
- 41.0 MPa
- Flexural Strength
- 75.0 MPa
- Notched Izod
- 22.0 J/m
- Unnotched Izod
- 257.0 J/m
- Elongation at Break
- 7.1 %
- Heat Deflection Temp. @ 1.8 MPa
- 83.0 °C
- Heat Deflection Temp. @ 0.45 MPa
- 111.0 °C
- Thermal Expansion
- 68.1 μm/m/°C
- Flexural Modulus
- 2700.0 MPa
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
- 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 3 Resin Tank V2.1, Form 3L Resin Tank V3, Form 4 Resin Tank, Form 4L Resin Tank
Flame Retardant Resin—
Why Choose Flame Retardant (FR) Resin
Accelerate time to market without the design constraints and upfront costs of traditional manufacturing with isotropic and highly detailed parts (XY resolution: 25um) with unlimited geometric freedom in any quantity (from 1 to 1000 parts) at any time.

Certified Flame Retardant
Produce certified flame retardant, UL 94 V-0 and FAR-rated 3D printed parts that meet necessary certification requirements for enduring hazardous environments.
Heat and Creep Resistant
Parts will perform well long-term in indoor and industrial environments with high temperatures or ignition sources.
Look and Feel of Injection Molded Parts
Fabricate plastic parts with exceptional surface finish far superior to other fabrication methods such as FDM 3D printing.
Stiff and Functional
Produce stiff and functional parts with a 2.9GPa modulus that can handle post-fabrication operations such as tapping, trimming, and drilling.
Applications
Flame Retardant (FR) Resin is a cost and time-effective solution for fabricating self-extinguishing parts.
Interior parts in airplanes, automobiles, and railways with excellent surface finish
Custom jigs, fixtures, and replacement parts for industrial environments with high temperatures or ignition sources
Protective and internal consumer or medical electronics components
Material Properties
| Parameter |
Post-cured at 70 ºC for 60 minutes |
Post-cured at 80 ºC for 120 minutes |
|---|---|---|
|
Heat Deflection Temperature 0.45 MPa |
94 ºC |
111 ºC |
|
Heat Deflection Temperature 1.8 MPa |
71 ºC |
83 ºC |
|
Tensile Modulus |
2.9 GPa |
3.1 GPa |
|
Ultimate Tensile Strength |
38.5 MPa |
41.2 MPa |
|
Elongation at Break |
9.4% |
7.1% |
|
Notched Izod |
22.1 J/m |
22.4 J/m |
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
Request a Free Flame Retardant Resin Sample Part
See and feel Formlabs quality firsthand. We’ll ship a free Flame Retardant Resin 3D printed sample part to your office.
