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All about ASA filaments

3D Printing Help Centre

3D PRINTING HELP CENTRE

In the 123-3D help centre, we answer all your questions about 3D software and printer settings, problems you may experience during or after 3D printing and other 3D-related topics.

What is ASA filament?

ASA filament is a strong and water-resistant filament type with a high resistance to UV radiation and chemicals. It is very durable and is widely used for printing prototypes, car parts and objects for outdoor use.

Main properties of ASA filament:

  • Glossy material
  • Very strong
  • Heat resistant
  • Light flexible
  • UV and water-resistant
ASA filament on a coil

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ASA is the abbreviation for Acrylonitrile Styrene Acrylate and is a very strong thermoplastic, which is comparable to ABS. It has a print temperature between 220°C and 260°C and, thanks to its UV-resistant properties and resistance to extreme weather conditions, it is extremely suitable for outdoor use.

ASA is available in the primary colours; black, white, red and blue. It has a nice glossy finish, which can be perfected by processing the 3D object with acetone. In addition, ASA filament retains its colour, even after frequent exposure to UV radiation, without yellowing or fading. A significant difference to ABS filament!

For an optimal 3D print, print in a draft-free room at room temperature, preferably with a closed 3D printer. To prevent your ASA designs from curling during cooling, using a heated bed is essential. In this way the print cools gradually for an optimal result.
 

What are the advantages and disadvantages of ASA filament?

Advantages of ASA filament Disadvantages ASA filament
UV resistant Heated bed required
Good resistance to water and high temperatures Not suitable for printing in damp areas with drafts
Excellent mechanical properties Not suitable for all types of extruders
Good wear resistance Expensive compared to other materials
ASA melts through acetone and can be post-processed with acetone vapor
Adheres to a variety of surfaces
 

Tips for printing with ASA 3D filament:

  • Toxic fumes may be released during ASA printing. Therefore, always work in a well-ventilated area.  
  • ASA tends to warp during cooling. The use of a heated bed ensures that the cooling process is more gradual. For ASA, the optimum heated bed temperature is between 90°C and 110°C.
  • ASA adheres well to the following materials: Kapton tape and 3DLAC
  • The print bed must be completely flat, so that a good first layer is created. The print height of the first layer also has a lot of influence on the adhesion of ASA to the print bed.
  • When choosing filament, keep in mind the different properties: ASA has a higher density than ABS and retains its shape and strength for longer, even under extreme weather conditions.
  • Only use filament with the correct diameter. 

ASA 3D filament in accessories: 

  • ASA REAL filament: 1.75mm 2.85mm
    Want to make objects that also keep their shape and colour outdoors? Then our ASA REAL filament is the right choice.
  • Filament coil holder
    The ideal accessory to set up your filament coils if your printer does not have a coil holder!  
You can easily order ASA filament with diameters of 1.75mm and 2.85mm online at www.123-3D.co.uk

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