An Innovative Partnership in 3D Printing

Multi Jet Fusion and Polypropylene

In the field of 3D printing, turning innovative design concepts into reality without compromising efficiency and quality is key. However, the cost and time-consuming process of part manufacturing can make these goals difficult. This is where the unique combination of Multi Jet Fusion (MJF) and polypropylene (PP) comes into play.

The combination of MJF and PP offers an efficient and cost-effective solution for a wide range of 3D printing applications. It enables the production of high-quality parts with high precision and strength, whether for prototypes, short runs or custom fabrications. Their unique properties and the impressive synergies they offer when used together have not only enabled significant advances in the industry, but also greatly expanded the potential for future innovation. This dynamic duo has paved the way for the development and manufacture of products that were previously difficult to realize.

The Multi Jet Fusion technology explained - innovation combined with polypropylene

Multi Jet Fusion (MJF) is an innovative 3D printing technology based on the fusion of powder layers. In this process, a thermally conductive fluid is applied to a thin layer of plastic powder. This is done with the help of a heating source (infrared light) located on the print head, which heats the powder bed immediately after the ink is applied. The process is similar to inkjet printing, but instead of ink, a specific fluid is used. This fluid bonds the powder at the selected points to form the desired part of the 3D object. These steps are repeated layer by layer until the entire 3D object is completed. It is a precision process that is customized specifically for each individual product. MJF thus enables the production of high-precision and complex components with high detail and strength.

The combination of MJF with polypropylene (PP) opens up additional advantages. PP is a versatile material with outstanding mechanical properties and chemical resistance, ideal for applications requiring strength and durability. The combination of MJF and PP offers a powerful solution for additive manufacturing.

This innovative combination revolutionizes product development and enables the production of high-quality components with high precision and efficiency. MJF with PP enables shortened lead times and efficient manufacturing, while allowing complex design concepts to be implemented. The technology opens up new possibilities for prototyping, customized manufacturing and the production of functional components in various industries.

HP 3D High Reusability PP: The next generation polypropylene

HP 3D High Reusability PP, developed by BASF, is a groundbreaking material designed specifically for use on the HP JF5200 Series printers. Its introduction enables the use of bulk plastics in Multi Jet Fusion technology, a critical step in expanding the applications of this innovative method. With its high throughput rate and relatively low cost per part produced, it makes a significant contribution to increasing the efficiency of industrial production. In this regard, the material represents an important building block in the continuous improvement and development of 3D printing technology by opening up new possibilities for the design and manufacture of products. HP 3D High Reusability PP not only impresses with its outstanding material properties, but also stands out for its flexibility and adaptability.

Material details and advantages at a glance:

  • Tensile strength: 30 MPa
  • Modulus of elasticity: 1600 MPa
  • Elongation at break: 20%
  • Charpy impact strength (notched impact): 3.5 kJ/m²
  • Heat deflection temperature (HDT B): 100 °C

As a result, this material is more than ideal for manufacturing high-quality, durable products. It is the perfect choice for those who want to push the boundaries of product development and cover a wide range of use cases and scenarios, from prototype development to low-volume production to the creation of final products.


Application examples

Thanks to its excellent material properties, flexibility and conformability, HP 3D High Reusability PP is the ideal choice for a wide range of applications in many different industries:

  • Automotive - For the production of rugged and durable parts such as knobs, switches and handles.
  • Fluid and HVAC systems - Chemical resistance makes it ideal for use in fluid systems and heating, ventilation and air conditioning equipment
  • Manufacturing of pipes, tubes and vessels - PP's ruggedness makes it ideal for use in demanding conditions
  • Medical technology - Its low moisture absorption and chemical resistance make it an excellent choice for the manufacture of medical devices
  • Orthopedic devices - PP offers the strength and flexibility needed to produce comfortable and durable orthotics
  • Functional prototyping - testing and design refinement are possible prior to final production
  • Multipurpose industrial goods - e.g. for the production of tool handles and housings for electronic devices

Limitations and challenges

Despite the many advantages and possibilities offered by the combination of MJF and PP, we must also consider the potential challenges and limitations. The surface quality may not always have the smooth perfection one might expect from other printing processes, and printing extremely fine details or very thin walls could become a challenge. Another aspect to consider is resource consumption, which should be taken into account when used intensively. In addition, specialized skills and understanding of the technology require a learning curve. Despite these hurdles, the benefits and opportunities offered by MJF and PP clearly outweigh them. They make it possible to push the boundaries of product development and pave the way for innovative solutions.


Conclusion: Advances in 3D printing with MJF and HP 3D High Reusability PP

Thanks to the combination of MJF and HP 3D High Reusability PP, the world of 3D printing offers an impressive variety of possibilities. This technology and material could be just what you're looking for to take your 3D printing projects to the next level. The speed, accuracy and versatility offered by this combination make it the ideal choice for a wide range of applications, from product development to design and architecture.


If you have any questions about the materials, the design of components or generally about 3D printing, we are always happy to help. Give us a call or send us an e-mail.

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Kevin Wernli
Sales & Key Account Manager

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