SLA Printing

stereolithography
Table of Contents

Prints with SLA Printing

- NICE SURFACES - HIGH RICHNESS OF DETAILS -

Stereolithography (SLA) is suitable for visualization models where there are high demands on surface finish and detail. SLA is a resin-based process where liquid is hardened by one or more light beams into the desired shape. The quality of the surfaces is already very high immediately after printing, but can be further improved to achieve transparent or high-gloss results for chromating and varnishing of various kinds. The materials for SLA are thermoplastics, which means that they are relatively brittle and sensitive to UV light and moisture. Other methods for 3D printing that we work with include: SLS Printing. Are you unsure which process suits your purpose best? Then click here!

Process data Value
Standard tolerance ±0.2% (minimum limit 0.2mm)
Layer thickness 0.1 mm
Minimum permitted wall thickness 2 mm
Minimal detail 1 mm
Largest component size 2000 x 700 x 788 mm
*the above data depends on the choice of material.

*click to enlarge*

Materials for SLA Printing

PG 420

PG 420 is a versatile thermoset that is well adapted to suit most applications. It has good mechanical properties and high surface finish. It is often used to demonstrate full product assemblies, visualization and architectural models, and prototypes. Like all materials for SLA, PG 420 is sensitive to UV light and moisture.  

  • Universal use
  • High surface finish
  • High product complexity
  • Used for visualization and activity models as well as prototypes.
Material data Unit Value
Tensile strength MPa 43 ± 1
E-module MPa 2250 ± 60
Flexural strength MPa 68 ± 10
Flexural modulus MPa 2070 ± 80
Notched Izod impact test J/m 21 ± 1
Water absorption % 0.7
Elongation at break % 11 ± 4
Shore D Hardness 87 ± 5
Density MPa 1.18
Heat resistance temperature (1.8 MPa) °C 45
Values above are approximate and actual values may vary.
Material data Unit Value
Tensile strength MPa 43 ± 1
E-module MPa 2250 ± 60
Flexural strength MPa 68 ± 10
Flexural modulus MPa 2070 ± 80
Notched Izod impact test J/m 21 ± 1
Water absorption % 0.7
Elongation at break % 11 ± 4
Shore D Hardness 87 ± 5
Density MPa 1.18
Heat resistance temperature (1.8 MPa) °C 45
Values above are approximate and actual values may vary.

XC Transparent

XC Transparent is a strong thermoset that is perfect for prototypes, visualization models and flow analyses. With the right post-processing, such as polishing and clearcoating, completely transparent models can be achieved. Like all materials for SLA, XC Transparent is sensitive to UV light and moisture. XC Transparent has a slight blue tone.  

  • Can be made transparent
  • Allows high detail complexity
  • Used for visualization and activity models as well as prototypes.
Material data Unit Value
Tensile strength MPa 50 ± 4
E-module MPa 2770 ± 110
Flexural strength MPa 69 ± 5
Flexural modulus MPa 2200 ± 160
Notched Izod impact test J/m 25 ± 5
Water absorption % 0.36
Elongation at break % 15 ± 5
Shore D Hardness 80 ± 3
Density MPa 1.15
Heat resistance temperature (1.8 MPa) °C 45
Values above are approximate and actual values may vary.
Material data Unit Value
Tensile strength MPa 50 ± 4
E-module MPa 2770 ± 110
Flexural strength MPa 69 ± 5
Flexural modulus MPa 2200 ± 160
Notched Izod impact test J/m 25 ± 5
Water absorption % 0.36
Elongation at break % 15 ± 5
Shore D Hardness 80 ± 3
Density MPa 1.15
Heat resistance temperature (1.8 MPa) °C 45
Values above are approximate and actual values may vary.

What is SLA Printing?

SLA (Stereolithography) is one of the most popular 3D printing techniques used to create complex and precise objects. In SLA printing, a UV laser is used to harden a photosensitive resin in a layer-by-layer process. When the resin has hardened, they are joined into a 3D object.

Advantages of SLA Printing

  • High precision and detail: SLA printing is one of the most precise techniques in 3D printing and is ideal for use in the manufacture of small and complex components.
  • Fast process: SLA printing is a very fast process compared to other technologies, especially when it comes to small objects.
  • Extremely high surface finish: SLA printing offers a wide palette of finishing treatments to achieve the desired surface quality and top-class appearance.

Disadvantages of SLA Printing

  • Details 3D printed with SLA are often hard, fragile and must be handled with care.
  • The materials age quickly when exposed to daylight and moisture, and it is therefore important to have lacquered details if you want a longer lifespan.

Areas of use for SLA Printing

SLA printing is used in a variety of industries, including dental technology, optics, electronics and medicine. The technology is very suitable for the production of small, complex and detailed objects such as design models, architectural models, prototypes and masts for casting.

Examples of objects that can be created with SLA printing

  • Models: High-end designs and architectural models can be produced with SLA printing.
  • Dental technology: Dentures and dentures can be manufactured with SLA printing.
  • Optics: Optical components such as lenses and mirrors can be manufactured with high precision using SLA printing.
  • Medicine: Prototypes for medical equipment and instruments can be produced using SLA printing.


SLA printing is one of the most used techniques in 3D printing, and offers opportunities to create complex and precise objects with high speed and reliability. With a wide palette of finishing and a fast process, SLA printing is a powerful tool for prototyping and making models during the product development process.

ESD står för elektrostatisk urladdning (Electrostatic Discharge), vilket är en plötslig överföring av elektricitet mellan två elektriskt laddade objekt orsakad av direkt kontakt eller genom ett elektriskt fält. Detta fenomen kan orsaka skador på elektroniska komponenter och kretsar, eftersom de ofta är känsliga för små laddningar. För att skydda mot ESD-skador används ofta antistatiska material, jordningsmetoder och andra förebyggande åtgärder inom elektronikindustrin.

an image that represents having 100% infilrate when ordering 3d printing
an image that represents having 0% infilrate when ordering 3d printing

A CAD program, which stands for "Computer-Aided Design," is an important component when it comes to ordering 3D prints for industrial purposes. CAD programs are specialized software used to create detailed and accurate digital models of objects, components or prototypes. These digital models serve as basic blueprints or designs needed to produce physical objects using 3D printing technology.

.STL (stereolithography) is a file format used to represent 3D geometry, especially surfaces made up of triangles. It is a common format in 3D printing and is used to describe models to be printed in 3D printers.

.STEP (Standard for the Exchange of Product Data) is a standard for exchanging 3D models and product data between different CAD (Computer-Aided Design) programs. It is a common format in industry and is used to transfer detailed 3D models of components and products.