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Selective Laser

Sintering (SLS)

Selective Laser Sintering  (SLS) is an industrial additive manufacturing technology that uses lasers to selectively fuse powdered materials. Parts have excellent mechanical properties, throughput, accuracy and finish, making it valuable for both prototyping and production applications.

What is Selective Laser Sintering (SLS)?

Selective Laser Sintering (SLS) is an  industrial additive manufacturing process that fuses together powdered thermoplastic polymers using a high powered laser. The laser selectively sinters the particles of the powder and binds it together to create a solid structure, layer by layer. SLS offers fantastic part throughput with its unique ability to nest thousands of parts within the boundaries of the machine without the need for support structures. This allows it to be used not only for rapid prototyping, but also for high volume manufacturing of end-use parts.  SLS offers 5 high performance 3D printed materials that offer durability, electric static dissipation, temperature resistance, USP Class VI Biocompatibility, and/or Flame, Smoke Toxicity (FST) UL-94 ratings.

Manufacturing using Selective Laser Sintering 3D printing services is ideal for producing parts that look, feel and perform like end-use parts. They offer a uniform matte finish with little to no visible layer lines. Functionally they perform exceptionally well in demanding applications, offering consistent mechanical properties,  abrasion resistance and excellent impact resistance. This makes SLS 3D printing a great substitute for injection molding or functional rapid prototyping at low to mid sized production volumes. 

Nylon PA 12

Nylon PA12 (Polyamide) is a strong and heat-resistant material commonly used to print strong and functional parts.

Measurement Value
Tensile Strength 46 - 51 MPa
Tensile Modulus 1600 - 1850 MPa
Tensile Elongation 18 - 25%
Flexural Strength 46.3 - 58 MPa
Flexural Modulus 1300 - 1630 MPa
HDT (0.45 MPa) 140 - 147°C
HDT (1.8 MPa) 82 - 86°C


Heat resistant




A versatile and durable material, highly suitable for compliant and functional parts.

Polypropylene (PP) is a rigid, lightweight material good for packaging and storage purposes. The second most widely used plastic in the world, 3D printed PP has properties comparable to injection-molded PP. It is tough, fatigue-resistant, and durable.

Measurement Value
Tensile Strength 21.4 - 29 MPa
Tensile Modulus 907 - 1600 MPa
Tensile Elongation 14 - 20%
Flexural Strength 22.8 MPa
Flexural Modulus 698 MPa
HDT (0.45 MPa) 100 °C
HDT (1.8 MPa) 60 °C



Powder-Based TPU

A rubber-like material suitable for functional prototypes and wear-resistant parts.

Powder-based TPU (thermoplastic polyurethane) is a rubber-like, powder-based material. It is able to bend and twist like rubber (shore hardness 86-90A), but still demonstrates a high level of strength, heat resistance (90-130 °C), and exceptional shock absorption. This makes the material great for functional parts and prototypes with rubber-like properties used in industrial settings.

Measurement Value
Tensile Strength 7 - 20 MPa
Tensile Modulus 60 - 85 MPa
Tensile Elongation 220 - 500%
Flexural Strength 6.2 MPa
Flexural Modulus 70 - 86 MPa




Made from nylon and aluminum powder, and it produces strong, high-temperature-resistant parts.

Alumide is nylon reinforced with aluminum particles. It is as strong (and almost as flexible) as standard nylon, but has a sparkling effect. The material offers high-temperature resistance (120 °C) and good chemical resistance. Material finishes includes both raw and polished versions, with natural dyed color options also available.

Measurement Value
Tensile Strength 42 - 51 MPa
Tensile Modulus 3450 - 3950 MPa
Tensile Elongation 2.5 - 4.5%
Flexural Strength 72 - 74 MPa
Flexural Modulus 2850 - 3750 MPa
HDT (0.45 MPa) 177.1°C
HDT (1.8 MPa) 130°C


Heat resistant



Nylon PA 11

A bio-based and temperature-stable material that features a high impact resistance and is commonly used to print strong and functional parts.

PA11 is a bio-derived material with exceptionally high toughness. This material has the particularity of offering high ductility and impact strength across a range of applications. As this material is resistant and approved for skin contact, it is used to create made-to-measure medical devices such as orthopedic parts.

Measurement Value
Tensile Strength 45 - 51 MPa
Tensile Modulus 1450 - 1638 MPa
Tensile Elongation 56 - 60%
Flexural Strength 46.3 - 58 MPa
Flexural Modulus 1300 - 1463 MPa
HDT (0.45 MPa) 190 - 193°C
HDT (1.8 MPa) 47 - 56°C


Impact resistant




Materials Guide

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