Flame Retardant
In applications where heat, sparks, or electrical faults are a constant risk, safety starts with the right material. Flame-retardant 3D printing enables housings, brackets, and cable guides that resist ignition, self-extinguish, and maintain their integrity under demanding conditions. From first prototype to certified end-use part, every contour and every cavity is engineered to protect people, equipment, and uptime.
Advantages
Smarter parts, fewer limits.
You can integrate fire‑safety features directly into the geometry: thicker walls only where needed, ribbing, cable guides, and separation channels that improve airflow and isolation without adding unnecessary mass. This makes it easier to meet safety targets while keeping parts compact and functional.
3D printing lets you quickly test different wall thicknesses, vent patterns, and enclosure concepts in flame‑retardant materials, so you can optimize parts for standards like UL 94 much earlier in development. This shortens the loop between design, testing, and approval.
Flame‑retardant housings, covers, and brackets can be produced exactly when and where they are needed, reducing the need for tooling and large safety‑critical spare inventories. That flexibility is especially valuable for low-volume, customized equipment or late design changes in certified assemblies.
Possibilities
Components used in aircraft cabins and interiors must meet strict fire safety regulations. Flame retardant materials ensure these parts maintain structural integrity and resist ignition in the event of a fire.
From dashboard components to engine bay brackets, automotive parts are exposed to heat and potential ignition sources. Flame retardant properties add a critical layer of safety in both passenger and high-performance vehicles.
In buildings and infrastructure projects, components such as ventilation ducts and fire-protection enclosures must comply with applicable fire safety regulations. Flame-retardant 3D-printed components provide reliable performance while enabling complex geometries that are difficult to achieve using conventional manufacturing methods.
Materials
ULTEM™ 9085 is a high-performance FDM® thermoplastic with an excellent strength-to-weight ratio, a tensile strength of 69–86 MPa, a flexural strength of 110–130 MPa, and a heat deflection temperature (HDT) of 153–170°C. It offers excellent chemical resistance, high impact strength, and meets the flame, smoke, and toxicity standards of the transportation industry — backed by UL 94-V0 certification.
When printed on the Stratasys® F900™, the most advanced FDM® production system, large, precise, and consistent parts can be manufactured with ease. The F900™ features the largest build volume in its class (914 × 610 × 914 mm) along with high-precision control for reliable throughput, repeatability, and an optimized workflow. Its versatility enables production across a wide range of high-performance polymers and industrial thermoplastics for demanding manufacturing environments.
Materials
ULTEM AM1010F is a high-performance polyetherimide (PEI) filament designed for FDM additive manufacturing, offering exceptional heat resistance, mechanical strength, and reliability for demanding industrial applications. This amorphous thermoplastic features a high glass transition temperature (Tg) of 217 °C, supports continuous service temperatures up to 170 °C, and provides inherent flame retardancy with a UL94 V0 rating.
The Stratasys® F900™ is a high-performance FDM® system designed to print the ULTEM AM1010 perfectly to meet the most demanding manufacturing requirements, offering exceptional accuracy and reliability. As the Fortus® system with the largest build volume, it enables the production of large-format parts with outstanding precision.
Materials
INFINAM® FR 4100 L from Evonik is a flame-retardant photopolymer resin designed for DLP 3D printing, offering high mechanical durability and ductility for demanding industrial applications. The resin cures to provide ABS-like toughness, with superior elongation at break and good haptics. It self-extinguishes within 10 seconds with a maximum 30-second afterglow, showing low smoke and toxicity. Physical traits include a liquid density of 1.12 g/cm³ and viscosity of 4500 mPa.s at 25°C.
The XiP Pro that uses LCD-based vat photopolymerization with Lubricant Sublayer Photocuring (LSPc) in combination with Evonik’s INFINAM® FR 4100 L, forms a strong platform for flame‑retardant, mechanically robust parts at high throughput in aerospace, automotive, and electronics applications.
Materials
Printable with
Loctite® 3D 3955 is a halogen-free, flame-retardant photopolymer resin optimized for DLP 3D printing. It combines high mechanical strength, excellent thermal resistance (HDT up to 285°C), and superior FST properties, achieving a UL94 V-0 rating and meeting FAR 25.853(a) standards — making it an outstanding choice for flame-retardant applications in aerospace, rail, and transportation, including components such as connectors and housings.
The Stratasys® Origin® Two is ideally suited for printing with Loctite 3955 resin. It is an industrial DLP 3D printer featuring Programmable PhotoPolymerization (P3™) technology and a high-resolution 5K projector, delivering exceptional accuracy of up to ±50 µm and a surface finish comparable to injection-molded parts. It offers a build volume of 192 × 108 × 370 mm (7,672 cm³), enabling the production of larger parts or nested batches. Layer thicknesses from 25 to 200 µm are supported for high precision, with speeds of up to <20 mm/h.
Materials
INFINAM® PA 6004 P from Evonik is a flame-retardant polyamide 12 (PA12) powder designed for powder bed fusion 3D printing processes like SLS, HSS, and MJF, offering excellent flowability and reusability for industrial-scale production. This natural-colored nylon powder delivers robust mechanical performance, chemical and heat resistance, and UL 94 V0 classification at 2 mm thickness, with self-extinguishment within 10 seconds and 30-second afterglow maximum. It suits demanding applications in aerospace, automotive, electronics, and harsh environments where fire safety and durability matter.
The Nexa3D QLS 260's open SLS platform and 60W CO2 laser (typically 10.6 µm) aligns perfectly with PA12 powders like INFINAM® PA 6004 P, which is explicitly for PBF/SLS; fine particle size ensures excellent flow and laser absorption.
Materials
Printable with
Use Cases
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