The Guide to 3D Printing TPU
See why TPU is used for flexible, durable parts.
Selective Laser Sintering (SLS) Services
Selective Laser Sintering (SLS) is capable of building complex polymer parts with high accuracy. It’s a popular 3D printing process for prototyping and end-use parts.
The main advantages of this technology are that it doesn’t require additional tooling, is not susceptible to tooling wear, and is cost-effective.
How SLS works
Selective Laser Sintering (SLS) is a powder-based technology, like Laser Powder Bed Fusion (L-PBF). However, instead of metal, plastic materials build the basis to create parts. SLS uses a powder bed to create highly accurate parts layer by layer based on a 3D model.
During the process, the powder is heated just below its melting temperature. The laser’s thermal energy delivers the residual energy to melt the part.
SLS Use Cases
SLS is a popular additive manufacturing technology for producing plastic parts on the MakerVerse platform – particularly for rapid prototypes and end-use applications.
SLS is the go-to technology when the printed parts require good mechanical properties or must be produced very efficiently (common applications include jigs & fixtures, replacement parts, and more).
SLS by the Numbers
Max Build Size
Ranging from 340 X 340 X 600 mm to 700 X 380 X 580 mm (material dependent)
Lead Times
Starting at 7 days
Minimum Wall Thickness
0.8 mm (material/geometry dependent)
Standard Color
White
Dimensional Accuracy
+/- 0.3% with a minimum of 0.3 mm
Key Feature: Diverse Materials
SLS materials are suited for a wide range of use cases. Aluminum and glass-filled PA 12 offers high levels of strength. Other materials are biocompatible and suited for medical use.
SLS is also capable of printing flame-retardant parts. Parts made with these materials meet the high certification standards for specific industries, such as aerospace, rail, and electronics.
Source Industrial-Grade SLS parts
MakerVerse gives you the flexibility to source parts however you need. Get instant quotes and quickly order parts with on-demand manufacturing. Our team of experts will work with you for large or complex orders to develop, align, and supervise a manufacturing quality plan from start to finish.
On-demand manufacturing
- Instant quoting and DFM checks
- Short lead times
- Fast and intuitive order placement
Production Orders
- Expert support from end-to-end
- Comprehensive manufacturing and quality plan
- Guaranteed quality meeting advanced specifications
Popular SLS Finishes
Blasted
An abrasive medium is applied to the component under high pressure. By using different media (e.g., corundum, sand, or glass beads), both functional (achieving a specific surface roughness) and optical (polishing the surface) finishing can be performed.
Color dyed
The plastic component is immersed in a water bath. The resulting chemical reaction causes the dye to penetrate the part.
Painted
Additional color is applied to the printed part, often by a professional spray painting system. Accurate cleaning and a clear coat are applied beforehand to ensure the highest levels of quality.
Sealed
The sealing process uses an aqueous solution to close the outer surface or skin of the part and fill in tiny pores. The sealing solution is manually applied or dipped depending on the part's geometry.
Smoothed
In the smoothing process, the plastic component is reworked by a chemical reaction. The top layer of the component is dissolved by a medium in a solution bath and the result is a very smooth surface.
Tumbled
Parts are reworked by grinding media in a container, deburred, finely ground, and polished by vibration or rotation of the container.
Smoothed
In the smoothing process, the plastic component is reworked by a chemical reaction. The top layer of the component is dissolved by a medium in a solution bath and the result is a very smooth surface.
Painted
Additional color is applied to the printed part, often by a professional spray painting system. Accurate cleaning and a clear coat are applied beforehand to ensure the highest levels of quality.
Tumbled
Parts are reworked by grinding media in a container, deburred, finely ground, and polished by vibration or rotation of the container.
Color dyed
The plastic component is immersed in a water bath. The resulting chemical reaction causes the dye to penetrate the part.
Sealed
The sealing process uses an aqueous solution to close the outer surface or skin of the part and fill in tiny pores. The sealing solution is manually applied or dipped depending on the part's geometry.
Blasted
An abrasive medium is applied to the component under high pressure. By using different media (e.g., corundum, sand, or glass beads), both functional (achieving a specific surface roughness) and optical (polishing the surface) finishing can be performed.
Available SLS Materials
What’s the best material for your project?
Try our Interactive technology and material advisor to find out
PA 11 
PA 12 PA 12 Glass filled (GF) PA 12 Al-filled PA 12 Flame Retardant (FR) PA 11 PA 11
Main characteristics
PA 11 is a bio-based polymer and provides excellent mechanical properties. Its high ductility and impact strength make it interesting for functional parts in various industries such as automotive. PA 11 parts can also be dyed and are biocompatible, which is why it is used increasingly in the orthotics sector for small series and individualized parts.Use cases
Typical applications for PA 11 include interior parts for automotive, prosthetics and orthotics, and functional prototypes.Lead time
7 days PA 12 PA 12
Main characteristics
PA 12 is a polyamide (PA) and and a standard Selective Laser Sintering (SLS) material. This material combines high strength with long-term stability. Further advantages of PA 12 lie in its chemical resistance and biocompatibility. Therefore, the medical industry often uses this material for a range of applications.Use cases
PA 12 is usually used for fully functional prototypes and end-use parts. One specific application area is in the orthopedic sector due to PA 12’s biocompatibility.Lead time
7 days PA 12 Glass filled (GF) PA 12 Glass filled (GF)
Main characteristics
PA 12 GF is a polyamidefilled with glass beads. This filling makes the material ideal for long-term usability. This plastic can withstand high thermal loads and combines high density and tensile strength.Use cases
PA 12 GF is often used for fully functional prototypes. Furthermore, it is often used for end-use parts e.g., in the automotive industry where it can be placed near high temperature environments.Lead time
9 days PA 12 Al-filled PA 12 Al-filled
Main characteristics
PA 12 Al-filled is a polyamide filled with aluminum (Al). The aluminum filling results in a metallic-looking appearance. One of the significant advantages of PA 12 Al-filled is its excellent dimensional stability at high temperatures combined with the light weight of plastic. In addition, surfaces can be finished by grinding, polishing, or coating, resulting in even more possibilities to individualize each part regarding the specific use case.Use cases
Popular applications for PA 12 Al-filled include fully functional prototypes and jigs and fixtures. Another common use case is components that must operate under high temperatures and great stress.Lead time
9 days PA 12 Flame Retardant (FR) PA 12 Flame Retardant (FR)
Main characteristics
PA 12 FR is a polyamide with a special chemical flame retardant. This makes the material particularly suitable for industries requiring such flame retardancy from a safety or regulatory perspective. Additionally, it offers a high tensile strength.Use cases
PA 12 FR is approved for certain aerospace applications, making it popular for interior components in aircraft. It is also used in passive parts for electronic components.Lead time
9 daysDidn't find the material you are looking for?
We are constantly expanding and you can request specific materials going beyond our current standardized offering. Simply select “Other Material” in the order process and provide us your desired specifications in the comment section.
You can also reach out to us with your specific material requests at any time under support@makerverse.com
Additive Manufacturing Resources
Multi Jet Fusion vs Selective Laser Sintering
Which one is right for your project? This guide explains when using MJF or SLS is the best fit for your parts.
6 Tips to Reduce Laser Powder Bed Fusion Costs
Learn how to minimize costs when it comes to making metal parts with L-PBF technology.
5 Pros (and Cons) of 3D Printing
See the biggest advantages and disadvantages.
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