There are lots of different 3D printing PA (Nylon) materials nowadays. Sometimes it’s hard to know the difference or what physical properties they have.

3D printing materials will have slightly different properties to the regular kind. This is because they are produced differently.

In the HP Multijet fusion printer that we have, we always get asked the question, PA (Nylon). Well… PA materials are a type of Nylon. The way that the PA is set makes if different from regular nylon that you would find in clothes and toys.

What is 3D printing PA (Nylon)

PA is a polymer of a long chain polyamide. PA is known for having high strength, durability, and flexibility. There a few different variants of PA including PA6 PA66 PA46 PA11 and PA12. Each of these nylons has similar properties with minor variances. PA12 also has another form in PA12 HR CB. This is a highly reusable form that reduces waste and has a higher tensile force than regular PA12.

What is PA used for?

PA has great me3chanical properties and therefore can be used for different types of parts. This includes prototyping and final version / functional parts. PA has good heat and chemical resistance at a relatively low cost.

What else can you do with PA?

PA printed parts can be easily made or processed in color. Like our MJF can print in full color adding into the powder while it’s set. Other types of PA can be dyed before printing. Without adding color the printed parts come out a grey color. It’s also possible to modify its characteristics by adding moisture. This can sometimes make parts weaker though. When printing normally, it’s important to keep the surrounding atmospheric temperature and humidity to a certain level.

3D printing PA (Nylon) Conclusion

PA materials are great for making prototypes and some final use parts. It’s important to check the mechanical properties of your PA before you print. It’s easy to add color, strong and durable, low cost, and high chemical and heat resistance.