ASA (acrylonitrile-styrene-acrylonitrile) is a copolymer that has similar properties to ABS and is therefore very resistant to mechanical influences and aqueous chemicals. This thermoplastic is scratch-resistant, UV and weather-resistant and extremely impact-resistant. This means that 3D printed components made out of an ASA filament can absorb a certain amount of collision and impact energy without breaking.
In addition is this high-quality thermoplastic characterized by a high UV and weather resistance. Therefore is this material particularly suitable for the production of prototypes, that tested in long testing cycles and for the manufacturing of ready-to-use end solutions for outdoors. There are many possible applications here: housings or housing parts, claddings, control panels, brackets, sport equipment and prototypes for the automotive industry.
|Extrusion temperature:||235 – 260 °C|
|Print bed temperature:||90 °C – 100 °C|
|Print bed material:||Kapton foil|
Although ASA, as an amorphous plastic, has lower shrinkage values than semi-crystalline plastics, warping can occur when printing at room temperature. In order to avoid this effect, its necessary to enclose the build tray. In addition protects a closed printing chamber the component from air currents, which allow it to cool irregularly and can lead to stress cracks between the layers. An active regulation of the chamber temperature ensures consistent results and high repeatability.
A wide range of post-processing methods are available for ASA. This plastic can be welded, glued, machined and screwed with an inset or directly. It is also possible, if really necessary, to paint ASA. But the surface of the 3D printed component should be sealed beforehand.
Solubility / resistance
As ASA is chemically very similar to ABS, it behaves almost identically to solvents. It is resistant to diluted acids, diluted alkalis and oils and can be dissolved in esters and ketones (especially acetone).
ASA is characterized above all by its good heat resistance (100 ° C) and weather resistance. Surfaces made from ASA have no need to be painted against UV and are also characterized by good resistance to scratches. As a result, ASA is often used outdoors, for example as paneling in the automotive sector or shipping industrie, or in other areas that require high UV resistance.
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