How strong is Multi Jet Fusion plastic?


Discover the role of plastics in the world of 3D printing and learn about their advantages, their applications and their similarity with plastic injection materials. Also find tips on how to choose the materials for your 3D printing project.

The main adoption of this technology has been in the area of plastics. It is estimated that approximately 70% of 3D printed parts in the world are manufactured with polymers. And such fabrications have a wide variety of applications, from a model for validation to high-strength parts that can be used in aircraft, vehicles or any other end-use device.

In this article I share relevant information about plastics in the 3D printing world, to review their advantages, their applications, their similarity with plastic injection materials and especially how to choose the next material for your 3D printing project.

Each of these plastics exists in different presentations by way of raw material, which depending on the 3D printing technology used, can vary between filament, powder, liquid and even in pellet form.

Pa12 material

You probably know what 3D printing is, but do you know which are the most important 3D printing technologies and their characteristics? Today we are going to talk about the 4 most used 3D printing technologies, and we will explain how you can identify the most suitable one for your project.  1. Fused Deposition Modeling (FDM)We start with FDM, because nowadays it is the most popular and affordable technology, we can even find printers of this technology in large electronics stores, to remember it or differentiate it from other technologies, we call it “churro type”. The extruder of this 3D printing technology heats a plastic wire to its melting point and then extrudes the semi-liquid plastic, layer by layer, at the corresponding position of the layer being printed. During the process, the plastic cools and solidifies at room temperature.  Advantages:

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3 Selective Laser Sintering (SLS)If you need a part with more flexibility or want to check some clipping, then SLS would be a good option.The process is similar to SLA but, instead of using liquid material, it uses powdered material, which can be plastics such as polystyrene and nylon and even ceramics, glass, and metallics.    Advantages:

Nylon pa12

HP has generated a lot of expectations in the 3D printing industry with the announcement of the Multi Jet Fusion (MJF) technology. Discover this new technology ideal for those projects with short lead times and where low porosity and excellent surface quality are required for low volume runs and functional prototypes.

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Multi Jet Fusion is a non-laser based powder technology. The powder bed is heated uniformly at the exit. A melting agent is sprayed at those points where the particles have to be selectively fused. A detailing agent is also sprayed on the contours to improve part resolution. As the lamps pass over the surface of the powder bed, heat is captured by the sprayed material and contributed evenly.

Unfinished parts typically have a smooth surface with no visible layers and a stone gray color. Parts produced by Multi Jet Fusion can be sandblasted and colored or impregnated.


Although chemically speaking, PA11 and PA12 are very similar polymers, they are two different materials that produce very different results, all due to a single additional carbon atom.

Before we talk about the differences between PA11 and PA12, let’s talk about exactly what nylon is to get a better structural picture. Developed by Wallace Carothers and first launched in 1935, nylon is a flexible and durable plastic material first used in the 1940s to produce women’s hosiery. Later adopted by the automotive industry for its friction-resistant properties, this material has become very popular and is now the most widely used material for traditional and 3D thermoplastic production.

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Starting from PA11 nylon, this is a bioplastic polyamide powder composed of renewable resources from castor/vegetable oil. Moreover, it has only one producer, Arkema. Nylon PA12, on the other hand, is a thin synthetic powder composed of petroleum-based materials and has several producers, such as Arkema and Evonik.