Formlabs Flame Retardant Resin 1 kg (0.84 L)

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Formlabs Flame Retardant Resin


Introducing Formlabs Flame Retardant Resin - the perfect solution for creating stiff, creep-resistant and functional plastic parts that perform well long-term in indoor and industrial environments. This self-extinguishing resin is halogen free with favorable flame, smoke and toxicity ratings. With a 2.9 GPa tensile modulus and a heat deflection temperature of 112 °C @ 0.45 MPa, you can easily create durable parts quickly without sacrificing quality or performance!

Formlabs Flame Retardant Resin is a flame retardant, halogen-free resin for use in SLA 3D printing. It supports higher throughput, improved surface finishes and exceptional mechanical properties required for functional prototypes and industrial tooling applications. Formlabs Flame Retardant Resin has a UL 94 V-0 certification and favorable FST ratings, as well as high stiffness to creep ratio that make it well suited for various industrial applications.


Why Choose Formlabs Flame Retardant 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.



Formlabs Flame Retardant 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



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.


Printer compatibility: Form 3, Form 3+, Form 3L, Form 3B, Form 3B+, Form 3BL

Compatible with these resin tanks: Form 3/3B Resin Tank V1, Form 3/3B Resin Tank V2, Form 3/3B Resin Tank V2.1, Form 3L/3BL Resin Tank V1, Form 3L/3BL Resin Tank V2

Compatible with these build platforms: Form 3 Build Platform, Form 3 Build Platform 2, Form 3L Build Platform, Form 3L Build Platform 2

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