PA12
(HP Multi Jet Fusion)

hp mjf 3d part PA12

What is Nylon PA12 for 3D Printing with HP MJF?

Nylon PA12 is an advanced thermoplastic material used in 3D printing with HP Multi Jet Fusion (MJF) technology.
It’s ideal for producing functional, strong, and high-precision parts for industrial and prototyping applications.

Thanks to the HP MJF process, Nylon PA12 delivers uniform quality, excellent mechanical strength, and consistent performance, making it one of the most reliable materials in additive manufacturing.

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Key Properties of Nylon PA12 MJF

Nylon PA12 MJF offers a unique combination of mechanical performance, dimensional stability, and surface quality.
It’s perfect for complex geometries requiring both impact resistance and fine detail accuracy.

Main features include:

  • High mechanical strength and durability
  • Dense, homogeneous parts with smooth finish
  • Excellent resistance to oils, greases, hydrocarbons, and alkalines
  • Low fluid permeability
  • High dimensional stability even under thermal stress

Advantages of Nylon PA12 with HP MJF

  • High Strength and Durability:
    Nylon PA12 is renowned for its toughness and fatigue resistance, ideal for demanding mechanical applications.

  • Precision Manufacturing:
    The HP MJF process ensures exceptional accuracy, even on intricate geometries, maintaining repeatability across batches.

  • Versatility Across Industries:
    Suitable for sectors such as automotive, electronics, aerospace, and consumer goods.

  • Superior Surface Quality:
    Parts made with Nylon PA12 MJF have fine textures and detailed finishes, often requiring no post-processing.

  • Dimensional Stability:
    It maintains a consistent shape under mechanical and thermal stress, making it perfect for end-use components.

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Main Applications of PA12

Nylon PA12 3d print MJF  is ideal for parts requiring mechanical strength, dimensional accuracy, and fine detailing, such as:

  • Gears and mechanical components

  • Electronic housings

  • Structural supports

  • Connectors and brackets.

Surface Finishing options

At Prototek, we offer several finishing options to adapt Nylon PA12 MJF parts to any functional or aesthetic requirement.

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Natural Grey

Micro-bead blasted to remove residual powder, ideal for functional parts and components requiring post-processing.

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Black Dyed

Micro-bead blasted, then immersed in a nylon dye bath for a uniform matte black finish.

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Graphite Finish

Dual bead-blasting process providing a shiny grey, uniform appearance with enhanced smoothness.

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Shiny Black

Dyed and bead-blasted multiple times for glossy, scratch-resistant, and visually appealing surfaces.

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Painted

Tumbled and bead blasted, then coated with primer and water-based paint for a smooth, elegant look.

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Vapor Smoothing

A chemical vapor treatment modifies the component’s outer surface, reducing roughness and sealing pores to achieve a smooth, uniform finish comparable to injection molding. Available in three intensity levels: Soft, Medium and Max.

TECHNICAL SPECIFICATIONS
CategoryMeasurementValueMethod
General PropertiesPowder melting point (DSC)187 °C/369 °FASTM D3418
Particle size60 μmASTM 03451
Bulk density of powder0.425 g/cm³ASTM D1895
Density of parts1.01 g/cm³ASTM D792
Mechanical PropertiesTensile Strength, Max Load⁴ – XY48 MPa/6960 psiASTM D638
Tensile Strength, Max Load⁴ – Z48 MPa/6960 psiASTM D638
Tensile Modulus⁴ – XY1700 MPa/245 ksiASTM D638
Tensile Modulus⁴ – Z1800 MPa/260 ksiASTM D638
Elongation at Break⁴ – XY20%ASTM D638
Elongation at Break⁴ – Z15%ASTM D638
Thermal PropertiesHeat Deflection Temperature (@ 0.45 MPa) – Z

Performance and sustainability of Nylon PA12 MJF

Beyond its mechanical and aesthetic qualities, Nylon PA12 MJF stands out for its consistent thermal behavior and long-term stability, even under demanding conditions. The material retains its tensile strength and impact resistance after repeated use, making it suitable for both functional prototypes and end-use parts that require reliable performance over time.

From an environmental standpoint, HP Multi Jet Fusion technology maximizes powder reusability, significantly reducing waste compared to traditional additive manufacturing processes. This efficiency not only lowers material costs but also supports sustainable production practices.

Furthermore, Nylon PA12 MJF is compatible with a wide range of post-processing and finishing techniques, including vapor smoothing, dyeing, and coating, enabling manufacturers to customize both the mechanical and visual aspects of their components. Its ability to maintain dimensional precision after finishing ensures that the printed parts meet tight tolerances for engineering-grade assemblies.

Overall, Nylon PA12 MJF offers an exceptional balance between performance, durability, and sustainability, making it one of the most advanced and cost-effective materials for industrial 3D printing applications.

Why Choose Nylon PA12 - HP Multi Jet Fusion (MJF)?

The combination of Nylon PA12 and HP Multi Jet Fusion (MJF) technology provides:

  • Fast production without tooling

  • Excellent part repeatability

  • Smooth, high-quality surfaces

  • Strong and durable end-use components

With its versatility and performance, Nylon PA12 MJF is a reliable choice for both prototyping and serial production.
Its mechanical properties, dimensional stability, and surface finish make it suitable even for final products exposed to mechanical stress or environmental challenges.

Looking to start your next 3D printing project with Nylon PA12 MJF?
Contact one of our experts to find the best solution for your application and production needs.

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