Heater holders printed in 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.


Flame Retardant (FR) Resin is a cost and time-effective solution for fabricating self-extinguishing parts. 

FR Resin is ideal for:

Interior parts in airplanes, automobiles, and railways with excellent surface finish
Protective and internal consumer or medical electronics components
Custom jigs, fixtures, and replacement parts for industrial environments with high temperatures or ignition sources

Material Properties

Post-cured at 70ºC for 60 minutes

Heat Deflection Temperature 0.45 MPa


Heat Deflection Temperature 1.8 MPa


Tensile Modulus

2.9 GPa

Ultimate Tensile Strength

38.5 MPa

Elongation at Break


Notched Izod

22.1 J/m

Post-cured at 80ºC for 120 minutes

Heat Deflection Temperature 0.45 MPa


Heat Deflection Temperature 1.8 MPa


Tensile Modulus

3.1 GPa

Ultimate Tensile Strength

41.2 MPa

Elongation at Break


Notched Izod

22.4 J/m


Form Wash Settings


10 min IPA or 15 min TPM


If washing with TPM, use a quick water rinse after to ensure full removal of TPM.

Form Cure Settings


60 min



70 °C


There are two post-curing options for FR Resin. Refer to the technical data sheet to understand how different options affect mechanical properties, and choose the post-cure option that is best suited to the intended application. To achieve the highest HDT of 111 °C @ 0.45 MPa: Post-cure parts in Form Cure for 120 min at 80 °C. For applications that do not require the maximum heat resistance but offer more toughness, post-cure parts in Form Cure for 60 min at 70 °C.