Aurora

Powder material for SLS 3D-Printers

Highly elastic, tear resistant, and resilient


Materials and our Process
The combination of our developed machines, processes and materials make Wematter one of a kind. Because of this, we are able to compete with other SLS (Selective Laser Sintering) technologies, while achieving even better mechanical properties. On this page, you will learn more about our powder materials used in the printing process.

Why Wematter?
Wematter’s uniqueness lies in the fact that we can, with our proprietary software and process, produce really strong and tough prints.

To really make it clear, we have sent samples from our prints to a third party lab that demonstrate that we are stronger. Below, we have a compilation of how our 3D prints look if you x-ray them compared to the competitors’ absolute best machines. 

In the pictures to the left, dark fields can be seen, which are air pockets in the print. The images on the right contain smaller air pockets or pores, which gives higher density and thus higher strength. With Gravity, the print quality is more even and the material strong in all directions.

X-rayed 3D-print

Benefits with Aurora material

Strong & flexible prints

SLS 3D prints that are both strong and flexible. Our process and our material create some unique 3D prints that can be bent, go back to their original shape, and do not break into thousands of small pieces.

  • Complex geometries
  • UV-resistant
  • Incredibly strong
  • Can be ordered in black or white

Unique container for a powder free office

The absolute biggest disadvantage of a powder bed 3D-printer (SLS) is the powder handling. We at Wematter have solved this with a very simple solution where you refill powder with our patented powder packaging. Pick up the package, place in the opening and turn it around. It couldn’t be easier.

Play Video

Material Specifications

Our SLS 3D-printer Gravity is prepared for a variety of materials and comes initially with Wematter Aurora PA11.

Minimum wall thickness0.8 mm, but living hinges are possible at 0.5 mm
Minimum details0.25 mm
Accuracy± 0.3% (with lower limit on ± 0.2 mm)
Maximum size300 x 300 x 300 mm
Clearance0.3 mm (recommended 0.5 mm)
Interlocking or enclosed partsYes

Our materials are currently available in the different options below. Let us know if you have specific color requirements for your products!

  • Aurora Arctic White
  • Aurora Charcoal Grey
  • Aurora Pure Black 

Components 3D-printed with SLS technology can be used in a number of different areas. We have delivered parts to companies in, among other things, the automotive industry, healthcare, the aviation industry and the technology industries.
Examples of types of prints to date are:

  • Prototypes
  • Functional parts
  • Small complex parts
  • Parts for the automotive industry
  • Medical supplies
  • Pipelines and fittings for water pipes
  • Industrial components
Weight 2,5 kg
Size 10 x 54 cm
Storage temperature 25 ℃ ± 10 ℃
Packaging material Cardboard, paper and wood
Reusable Yes
Locking mechanism Sealed lid with patented refill interface

Our pricing depends partly on the choice of material but also the volume of prints and thus how large the powder consumption will be. Get in touch with your specific printing needs and we will get back to you with more price information!

Mechanical properties

Our most common material, Aurora PA11 has superior mechanical performance compared to polymers such as polyamide 12 which are widely used for freeform production.

  • Polyamide 12
  • Aurora PA11

3D-prints that last

In order to truly demonstrate the strength of our prints, we have let one of our employees hang freely in a 3D-printed chain made by us in Aurora material in the video below.

Play Video

Aurora PA11

  • UV resistant
  • Flexible
  • 100 % renewable source
  • Low water uptake

Aurora is a Polyamide 11 based material made from 100 % bio-based substances which are used primarily in industrial applications. The material is a sustainable thermoplastic polymer that produces strong UV-stable prints, well suited for technical end-products. Aurora has superior mechanical performance compared to polymers such as Polyamide 12 widely used in rapid prototyping. It also meets
the USP Class VI requirements for medical applications.

Property Value Unit
Density of finished parts 1,05 g/cm3
Density for powder 0,65 g/cm3
Melting point 200 °C
Tensile Strength 51 Mpa
Elongation at break 51 %
Tensile modulus 1700 MPa
Flexural modulus 1200 MPa
Hardness 80 Shore D

Application areas

  • Functional prototypes
  • Functional parts
  • Housings
  • Mounts
  • Gears
  • Small complex parts

Main benefits

  • Superior mechanical properties
  • Low risk of sink marks
  • Low water uptake
  • Flexible
  • High strength
  • Salt water resistant

Aurora PA11 Product Sheet

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Example prints

Aurora PA12

  • Flexible
  • High toughness
  • Chemical resistance
  • Vibration damping

Polyamid 12 (PA12) is a material well suited for manufacturing of functional prototypes, manufacturing of individual units as well as serial parts. PA 12 has excellent resistance to greases, oils, fuels, hydraulic fluids, water, alkalis, and salt solutions as well as many solvents. It also has very good stress cracking resistance even in the presence of chemicals as well as damping of noise and vibration.

PropertyValueUnit
Density of finished parts1,02g/cm3
Density for powder0,44g/cm3
Melting point186°C
Tensile Strength51Mpa
Elongation at break20%
Tensile modulus1800MPa
Flexural modulus1800MPa
Hardness75Shore D

Application areas

  • Functional testing and functional prototypes
  • Parts for the automobile industry
  • Medical supplies
  • Pipelines and fittings for water mains
  • Industrial components

Main benefits

  • Excellent mechanical properties
  • Nice surface finish
  • Excellent recyclability
  • Good chemical resistance
  • Excellent surface resolution and feature detail

Aurora PA12 product sheet

Download product sheet

Send download link to:

I want to receive news and offers from Wematter

Example prints

Customer-specific solutions & research projects

Upcoming material for our Gravity SLS 3D printer.
We at Wematter spend the majority of our revenue on research and development to create products for the future. Should you have needs that are outside the materials we present above, you are welcome to contact us and tell us about your specific requirements so we can look at a customized printing process. In the list below you can see materials that are currently under development.

  • Aurora PP (Polypropylene)
  • Aurora Fiber reinforced (Polyamide + Fibre)
  • Aurora Polypropylene PP + Nanocellulosa
  • Aurora Nanocellulosa
  • Aurora Grafen
  • Aurora PA FR (Fire Retardent)
Egentillverkat pulver för SLS-utskrift

Research projects

We have been awarded money from VINNOVA, the Swedish administrative authority of innovation, to work with Sweden’s most innovative companies to develop the 3D-printing capabilities of the future. See our ongoing research projects in the list below.

Frequently Asked Questions

The combination of our in-house developed machines, processes and materials makes Wematter unique. Because of this, we can compete with other SLS (Selective Laser Sintering) technologies, while achieving even better mechanical properties. Wematter’s uniqueness lies in the fact that our own developed, Swedish-made 3D printer together with process and materials can produce really strong prints.

We currently offer the following materials for our 3D printer Gravity:

  • Aurora PA11
  • Aurora PA12

At the same time, other materials are constantly being developed. You will find current development projects here.

We primarily target mechanical consulting companies with in-house development and product-owning companies with plastic details in their products, but we are also open to other types of applications. Feel free to contact us and surprise us with your needs!

Yes! In principle, all powder can be recycled from our materials. We receive used material from our customers which we then check and mix with new powder to ensure that all material properties are maintained. We then give a discounted price on the following orders after powder has been sent in for recycling.

Thanks to our tight powder packaging with a patented closed lid, the operator does not have to come into contact with any powder when filling the machine.

You can print any color (as long as you choose one of the following variants)

  • Aurora Arctic White
  • Aurora Charcoal Grey
  • Aurora Pure Black

Today, many people are used to PA6 for use in mass production. Our standard materials PA11 and PA12 have similar properties but can be compared to more premium versions of PA6 and are well suited for both prototype production and series production.