Markforged 3D Printing Materials
Engineering-grade composite and metal materials from prototype to large scale printing.
SELECT A MATERIAL
PLASTICS & BASE MATERIALS
Base materials can be printed on their own for functional prototypes and tooling, or reinforced with continuous fibers such as carbon fiber, fiberglass, or Kevlar to increase strength and stiffness.
Nylon
Unfilled engineering nylon designed for durable parts that require flexibility, toughness, and low-friction contact surfaces. Unlike carbon fiber-filled materials such as Onyx, Nylon is non-abrasive and better suited for tooling and components that interact with delicate surfaces or finished parts.
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Best For
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Ergonomic handles, soft jaws, workholding for delicate parts, non-marring tooling
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Key Properties
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Non-abrasive, high flexibility, low-friction surface
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Reinforced With
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Carbon Fiber, Fiberglass, HSHT Fiberglass, Kevlar
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Compatible Printers
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Mark Two, X7, FX10
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Learn More: Nylon 3D Printing for Prototypes: Properties, Applications & When to Use
Compare: Onyx vs Nylon: Which Markforged Base Material Is Right for You? link coming soon
Nylon White FS (Food Safe)
Food contact-certified engineering nylon designed for food and beverage manufacturing environments. Nylon White FS is certified by NSF to NSF/ANSI Standard 51 and complies with FDA CFR Title 21 requirements for food contact applications.
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Best For
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Conveyor guides, pushers and diverters, end-of-arm tooling, primary packaging maintenance and repair
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Key Properties
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Food contact certified, FDA compliant, non-abrasive
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Compatible Printers
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FX10
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Onyx
Micro carbon fiber-filled nylon that serves as the foundation for Markforged composite printing. Onyx delivers strong mechanical performance, chemical resistance, and a smooth surface finish on its own, and can be reinforced with continuous fibers to produce aluminum-strength parts.
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Best For
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Functional prototypes, jigs, fixtures, housings, customer-facing parts
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Key Properties
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71 MPa flexural strength, 145°C heat deflection temperature, smooth surface finish
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Reinforced With
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Carbon Fiber, Fiberglass, HSHT Fiberglass, Kevlar
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Compatible Printers
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Mark Two, Onyx Pro, X7, FX10, FX20
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Learn More: Onyx 3D Printing for Prototypes: Properties, Applications & When to Use
Compare: Onyx vs Nylon: Which Markforged Base Material Is Right for You? link coming soon
Onyx FR
Flame-retardant version of Onyx designed for strong, lightweight composite parts in regulated environments. Onyx FR combines chopped carbon fiber reinforcement with UL 94 V-0 compliance for applications where fire safety requirements are critical.
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Best For
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Aerospace components, automotive parts, defense hardware, electronic housings
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Key Properties
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UL 94 V-0 rated, lightweight composite strength, chopped carbon fiber reinforced
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Reinforced With
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Carbon Fiber, Carbon Fiber FR-A, Fiberglass, HSHT Fiberglass, Kevlar
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Compatible Printers
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X7, FX10, FX20
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Onyx FR-A
A flame-retardant, chopped carbon fiber-reinforced nylon designed for aerospace and regulated manufacturing environments, combining the performance of Onyx FR with lot traceability for production applications. When paired with the X7, Onyx FR-A is one of four NCAMP-certified additive manufacturing materials for aerospace workflows.
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Best For
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Aerospace interior components, certified production parts, defense hardware, traceable manufacturing applications
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Key Properties
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UL 94 V-0 rated, lot traceability, chopped carbon fiber reinforced
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Reinforced With
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Carbon Fiber, Carbon Fiber FR-A, Fiberglass, HSHT Fiberglass, Kevlar
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Compatible Printers
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X7
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Onyx ESD
ESD-safe (electrostatic discharge-safe) version of Onyx designed for applications where static control is required. Onyx ESD combines chopped carbon fiber reinforcement with controlled electrostatic dissipative properties while delivering higher stiffness and strength than standard Onyx.
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Best For
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Vacuum grippers, electronic enclosures, transfer trays, pick-and-place tooling
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Key Properties
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ESD-safe, higher stiffness than standard Onyx, smooth surface finish
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Reinforced With
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Carbon Fiber, Fiberglass, HSHT Fiberglass, Kevlar
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Compatible Printers
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X7, FX10, FX20
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Precise PLA
Cost-effective, easy-to-print material designed for concept models, visual prototypes, and early-stage design validation. Precise PLA offers reliable print quality with minimal warping, making it a practical choice for fast iterations and presentation-ready parts.
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Best For
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Early design iterations, visual models, presentation prototypes, non-functional concept parts
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Key Properties
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Cost-effective, available in 8 colors, reliable printing, low warping
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Compatible Printers
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Mark Two, Onyx Pro, X7
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Smooth TPU 95A
Rubber-like flexible material designed for parts that require cushioning, grip, and impact absorption. Smooth TPU 95A produces durable components that can bend, compress, and absorb vibration without cracking or breaking.
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Best For
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Gaskets, sealing surfaces, shock absorbers, flexible grips, protective covers
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Key Properties
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Flexible, impact-absorbent, high grip surface, rubber-like behavior
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Compatible Printers
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Mark Two, Onyx Pro, X7
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ULTEM 9085 Filament
High-performance PEI thermoplastic designed for aerospace and industrial applications that require heat resistance, durability, and FST compliance. ULTEM™ 9085 combines lightweight performance with flame, smoke, and toxicity characteristics suitable for aircraft interiors and other regulated environments.
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Best For
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Aircraft interior paneling, high-temperature tooling, aerospace ducting
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Key Properties
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FST compliant, high durability, high heat resistance
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Reinforced With
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Carbon Fiber HT-A
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Compatible Printers
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FX20
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Vega
High-performance carbon fiber-filled PEKK material designed for aerospace, defense, and industrial applications exposed to extreme heat and demanding environments. Vega produces lightweight composite parts with a matte black surface finish and can be reinforced with High Temperature Carbon Fiber for additional strength and stiffness.
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Best For
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Aerospace brackets, high-temperature industrial components, lightweight structural parts
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Key Properties
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High heat resistance, FST compliant, continuous fiber compatible
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Reinforced With
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Carbon Fiber HT-A
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Compatible Printers
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FX20
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CONTINUOUS FIBERS
Continuous fibers cannot be printed alone, they are embedded within a composite base material (typically Onyx or Nylon) to significantly increase part strength and stiffness.
Carbon Fiber
Continuous carbon fiber reinforcement designed for composite parts that require maximum stiffness and strength with minimal weight. When combined with Onyx base material, carbon fiber reinforcement can produce parts stronger than 6061 aluminum while remaining significantly lighter.
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Best For
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Metal replacement parts, structural brackets, robotic end effectors, aerospace tooling
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Key Properties
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470 MPa flexural strength, 700 MPa tensile strength, high strength-to-weight ratio
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Used With
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Onyx and Nylon base materials
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Compatible Printers
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Mark Two, X7, FX10, FX20
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Carbon Fiber FR
Flame-retardant continuous carbon fiber reinforcement designed for composite parts that require both high strength and FST compliance. Carbon Fiber FR is built for aerospace, transportation, and industrial applications where structural performance and fire safety requirements must be met together.
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Best For
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Aircraft interior components, transportation hardware, flame-retardant structural parts
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Key Properties
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High stiffness, flame-retardant, FST compliant
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Used With
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Onyx FR
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Compatible Printers
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X7, FX10, FX20
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Carbon Fiber HT-A
High-performance continuous carbon fiber reinforcement designed for Vega™ and ULTEM™ 9085 composite parts used in demanding aerospace and industrial environments. Carbon Fiber HT-A increases stiffness and structural performance while maintaining compatibility with high-temperature composite materials and aerospace traceability requirements.
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Best For
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Aerospace tooling, lightweight structural components, high-temperature industrial parts
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Key Properties
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High stiffness, optimized for high-temperature composites, aerospace-focused material system, FST compliant
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Used With
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Vega and ULTEM 9085
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Compatible Printers
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FX20
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Fiberglass
Continuous fiberglass reinforcement designed to increase the strength and stiffness of Markforged composite parts. Fiberglass is the most affordable continuous fiber option and provides a major mechanical upgrade over standard thermoplastics such as ABS.
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Best For
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Manufacturing tooling, functional prototypes, load-bearing fixtures
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Key Properties
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210 MPa flexural strength, 590 MPa tensile strength, cost-effective reinforcement
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Used With
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Onyx and Nylon base materials
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Compatible Printers
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Mark Two, Onyx Pro, X7, FX20
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HSHT Fiberglass
High Strength High Temperature (HSHT) Fiberglass is a continuous reinforcement fiber designed for composite parts exposed to heat, impact, and mechanical stress. It offers the highest heat resistance and impact toughness in Markforged’s fiberglass reinforcement lineup.
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Best For
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High-temperature tooling, under-hood automotive fixtures, industrial parts exposed to impact or heat
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Key Properties
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420 MPa flexural strength, 600 MPa tensile strength, strong heat and impact resistance
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Used With
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Onyx and Nylon base materials
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Compatible Printers
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Mark Two, X7
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Kevlar (Aramid Fiber)
Kevlar® is a lightweight continuous reinforcement fiber designed for parts that experience repeated impact, vibration, or contact with moving equipment. Compared to stiffer reinforcement fibers like carbon fiber, Kevlar can flex more before breaking and offers excellent abrasion resistance.
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Best For
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End-of-arm tooling, protective components, parts exposed to repeated impact or wear
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Key Properties
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High toughness, abrasion resistant, impact absorbent, lightweight
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Used With
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Onyx and Nylon base materials
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Compatible Printers
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Mark Two, X7
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METALS
Markforged metal materials are produced using the Atomic Diffusion Additive Manufacturing (ADAM) process on the FX10 with the metal add-on. Unlike standard FDM printing, ADAM prints metal-filled material that is later washed and sintered to produce fully metallic parts.
This process allows teams to produce complex metal components without many of the safety and infrastructure requirements associated with traditional metal powder-bed systems.
17-4 PH Stainless Steel
High-strength stainless steel designed for durable metal parts exposed to wear, load, and corrosive environments. 17-4 PH is commonly used for tooling, fixtures, and end-use components that require a combination of strength, hardness, and corrosion resistance.
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Best For
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Functional metal prototypes, custom tooling, manufacturing fixtures, low-volume end-use parts
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Key Properties
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High strength, corrosion resistant, heat-treatable (H900/H1150 conditions)
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Compatible Printers
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FX10 with Metal Add-On, Metal X
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316L Stainless Steel
Low-carbon stainless steel designed for parts exposed to moisture, chemicals, and corrosive environments. 316L combines corrosion resistance with good durability, making it a common choice for marine applications, food processing equipment, and medical components.
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Best For
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Marine parts, medical devices, food and beverage processing, chemical-resistant components
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Key Properties
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Excellent corrosion resistance, good toughness, low-carbon stainless steel
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Compatible Printers
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FX10 with Metal Add-On
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H13 Tool Steel
Tool steel designed for high-heat and high-wear environments where durability is critical. H13 maintains strength under repeated heating and cooling cycles, making it a common choice for molds, dies, and industrial tooling exposed to demanding production conditions.
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Best For
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Injection molds, extrusion dies, wear-resistant inserts, hot-work tooling
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Key Properties
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FX10 with Metal Add-On, Metal X
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Compatible Printers
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FX10 with Metal Add-On
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D2 Tool Steel
Wear-resistant tool steel designed for cold-work applications involving repeated contact, compression, and sharp cutting edges. D2 is commonly used for punches, dies, and tooling components where abrasion resistance and edge retention are critical.
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Best For
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Shearing inserts, punches and dies, wear-resistant cold-work tooling
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Key Properties
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Strong wear resistance, high compressive strength, excellent edge retention
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Compatible Printers
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Metal X
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Copper
Pure copper material designed for parts that require high thermal or electrical conductivity. Metal 3D printing makes it possible to produce complex copper geometries, including internal cooling channels and conductive components that are difficult or expensive to machine traditionally.
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Best For
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Heat sinks, antennae, welding arms, busbars, induction coils
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Key Properties
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High thermal conductivity, high electrical conductivity, 99.8% copper purity
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Compatible Printers
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Metal X
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Inconel 625
A nickel-chromium superalloy built for demanding environments where corrosion, oxidation, and high heat are major concerns. Inconel 625 offers high-temperature strength and durability, making it a strong fit for industrial, aerospace, chemical processing, and oil and gas applications where standard stainless steels may not be enough.
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Best For
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Aerospace components, chemical processing equipment, high-temperature industrial parts, oil and gas hardware
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Key Properties
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Exceptional corrosion resistance, oxidation resistance, high-temperature strength, nickel-chromium superalloy
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Compatible Printers
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Metal X
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