
Formlabs Flame Retardant Resin
RESIN · FORM 3 & 4 SERIES
FLAME RETARDANT RESIN
Overview
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 perform well long-term in indoor and industrial environments with high temperatures or ignition sources.


Why Choose Flame Retardant Resin
Flame Retardant Resin produces certified flame retardant, UL 94 V-0 and FAR-rated 3D printed parts that meet necessary certification requirements for enduring hazardous environments. Parts perform well long-term in indoor and industrial environments with high temperatures or ignition sources. Featuring a 2.9 GPa tensile modulus, this stiff and functional material handles post-fabrication operations such as tapping, trimming, and drilling while delivering an exceptional surface finish superior to FDM 3D printing. Recommended applications include interior parts in airplanes, automobiles, and railways; custom jigs, fixtures, and replacement parts for industrial environments; and protective or internal consumer and medical electronics components.
Technical Specifications
| Parameter | Flame Retardant Resin |
|---|---|
| Ultimate Tensile Strength | 41.0 MPa |
| Tensile Modulus | 3100.0 MPa |
| Elongation at Break | 7.1 % |
| Flexural Strength | 75.0 MPa |
| Flexural Modulus | 2700.0 MPa |
| Notched Izod | 22.0 J/m |
| Unnotched Izod | 257.0 J/m |
| Heat Deflection Temp. @ 0.45 MPa | 111.0 °C |
| Heat Deflection Temp. @ 1.8 MPa | 83.0 °C |
| Thermal Expansion | 68.1 μm/m/°C |
| Compatible Printer | Form 4, Form 4B, Form 4L, Form 4BL, Form 3, Form 3L, Form 3B, Form 3BL |













