Formlabs Flame Retardant Resin 3D Printing Material

Formlabs Flame Retardant resin is a light-grey, halogen-free SLA material that is self-extinguishing

3D Printed ABS-like White (Accura Xtreme White 200) part

What is Formlabs Flame Retardant Resin?

Formlabs Flame Retardant Resin is a light-grey, halogen-free SLA material that is self-extinguishing. It combines stiffness with heat and creep resistance, helping parts retain their shape under sustained loads. The material has a UL 94 V-0 rating at a tested thickness of 3mm (0.118 in.), under the specified processing conditions. 

Formlabs Flame Retardant Resin Overview

Applications

Formlabs Flame Retardant Resin is well suited to functional parts being developed for environments with heat or potential ignition sources. Its flame performance, stiffness, and creep resistance make it useful for protective electronics housings, internal equipment components, and custom industrial jigs and fixtures.

Key Product Benefits

  • Self-extinguishing and halogen-free 
  • UL 94 V-0 at 3mm (0.118 in.), under specified conditions 

Tolerances

Dimensional accuracy depends on part size, geometry, orientation, supports, and post-processing. Call out critical fits and dimensions so we can review them before manufacture. Material-specific tolerances should be confirmed during quoting.

Formlabs Flame Retardant Resin Properties

Property Test Method Metric Value Imperial Value
Colour  Manufacturer description  Light grey Light grey
Ultimate tensile strength ASTM D638-14 38 MPa ≈5,510 psi
Tensile modulus  ASTM D638-14 2.9 GPa 430 ksi
Elongation at break ASTM D638-14 9.4% 9.4%
Flexural strength ASTM D790-15 72 MPa 10,500 psi
Flexural modulus ASTM D790-15 2.7 GPa 392 ksi
Notched Izod impact strength ASTM D256-10 22 J/m 0.41 ft·lbf/in
HDT at 1.8 MPa (≈261 psi)  ASTM D648-16 71 °C 160 °F
HDT at 0.45 MPa (≈65.3 psi) ASTM D648-16 94 °C 201 °F
Flammability at 3 mm (0.118 in.) UL 94 V-0 V-0
Flammability at 2.5 mm (0.0984 in.) UL 94 V-1 V-1
Flammability at 1.5 mm (0.0591 in.) UL 94 HB HB
Bulk density ASTM D792-20 1.25 g/cm³ ≈78.0 lb/ft³
Data sheet Download data sheet (PDF)

Values are based on manufacturer testing and are approximate. Actual part properties may vary with geometry, machine settings, and processing conditions. This information is not binding and is not deemed to be certified. When performance is critical, consider independent laboratory testing of the material or finished part.