SLA – Flame Retardant Resin
Flame Retardant (FR) 3D printable resin is a specialized material designed for applications requiring enhanced fire safety. This resin is formulated to resist ignition and limit the spread of flames, making it suitable for use in environments where fire resistance is a critical safety consideration.
Key Material Facts:
- This 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.
- 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.
- 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.
- High Detail for demanding applications, capture the finest of features
- Parts can be printed solid and air / fluid tight right off the printer, no sealing required
- Compatible with assembly features including:
- Glue Joints / light welding
- Printed In Threads, can also be tapped (however Helicoils are recommended)
Common Applications:
- 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 Reference Data:
- For more information on how the SLA printing process works please check out this page.
- For SLA part design trick and tips check out this page.
- Material manufacturers website
SLA – Flame Retardant Resin: Technical specifications
Mechanical Properties – Post-cured for 60 minutes at 70 °C
| Property Description | Measurement (Metric) | Measurement (English) |
| Ultimate Tensile Strength (MPa | PSI) | 41 | 5990 |
| Tensile Modulus (GPa | KSI) | 3.1 | 446 |
| Elongation at Break | 7.10% | 7.10% |
| Flexural Strength (MPa | PSI) | 75 | 10900 |
| Flexural Modulus (GPa | KSI) | 2.7 | 401 |
| Notched Izod (J/m | ft-lbf/in) | 22 | 0.42 |
| Unnotched Izod (J/m | ft-lbf/in) | 257 | 4.82 |
| Maximum Stress Intensity Factor / Kmax (MPa · m^1/2 | psi · in^0.5 | 1.11 | 1009 |
| Work of Fracture / Wf (J/m2 | ft-lbs/ft^2) | 277 | 19 |
| Heat Deflection Temperature | 111 °C @ 0.45 MPa 83 °C @ 1.82 MPa | 232 °F @ 66 PSI 181 °F @ 264 PSI |
| Coefficient of Thermal Expansion, 20°- 80°C | 68.1 μm/m/°C | 37.8 μin/in/°F |
| Glass Transition Temperature (Tg) | 6144 °C | 291 °F |
Electrical Properties
| Property Description | Result |
| Dielectric Strength | 15.1 kV/mm |
| Dielectric Constant | 3.83 |
| Dielectric Constant | 3.82 |
| Dissipation Factor | 0.024 |
| Dissipation Factor | 0.025 |
| Volume Resistivity | 2.1 x 1015 ohm-cm |
- Outgassing
- Total Mass Loss and Collected Volatile Condensable Materials from Outgassing in a Vacuum Environment
- Pass
- Total Mass Loss (TML): 0.87%
- Collected Volatile Condensable Material (CVCM): <0.01%
- Water Vapor Recovered (WVR): 0.2%
- Total Mass Loss and Collected Volatile Condensable Materials from Outgassing in a Vacuum Environment
SLA – Flame Retardant Resin Solvent Compatibility
Percent weight gain over 24 hours for a printed and post-cured 1 x 1 x 1 cm cube immersed in respective solvent
| Solvent | 24 hr weight gain, % |
| Acetic Acid 5% | < 1 |
| Acetone | 2.1 |
| Bleach ~5% NaOCl | 0.3 |
| Butyl Acetate | < 0.4 |
| Diesel (Chevron #2) | < 0.1 |
| Diethyl glycol Monomethyl Ether | 0.3 |
| Hydraulic Oil | < 0.1 |
| Hydrogen peroxide (30%) | 1 |
| Hydrogen peroxide (3%) | 0.2 |
| Isooctane (aka gasoline) | < 1 |
| Isopropyl Alcohol | 0.2 |
| Mineral oil (Light) | < 0.1 |
| Mineral oil (Heavy) | < 0.1 |
| Salt Water (3.5% NaCl) | 0.2 |
| Skydrol 5 | < 0.1 |
| Sodium Hydroxide solution (0.025% PH 10) | <0.3 |
| Strong Acid (HCl conc) | < 1 |
| Water | < 1 |
| Xylene | < 1 |
| Windex Powerized Formula | 0.3 |
| Soapy water | 0.2 |
| TPM | 0.1 |
| Distilled Water | 0.2 |
| Hydrochloric Acid (10%) | < 0.1 |
| Sodium Hypochlorite Solution | < 0.1 |
| Sulfuric Acid (30%) | Disintegrated |
| Gasoline ISO 1817, liquid C | < 0.1 |
| Transmission Fluid (Havoline Synthetic ATF) | < 0.1 |
| Engine Oil (Havoline SAE 5W-30 | < 0.1 |
| Brake Fluid (Castrol DOT-4) | < 0.1 |
| Power Steering Fluid | < 0.1 |
SLA – Flame Retardant Resin: Part Gallery
