The ASA filament (1.75mm or 2.85mm) is a filament manufactured in Spain for 3D printers with FFF/FDM technology. ASA is acrylic acrylonitrile styrene, a thermoplastic developed as an alternative
to ABS.
ASA improves weather resistance compared to ABS with high resistance to UV rays while maintaining all its mechanical properties. The spherical particles of lightly cross-linked acrylate rubber (instead of ABS butadiene rubber) work as an impact modifier, are chemically grafted with styrene-acrylonitrile copolymer chains, and embedded in styrene-acrylonitrile matrix. Acrylate rubber differs from butadiene-based rubber by the absence of double bonds, giving the material approximately ten times more weather resistance and UV resistance than ABS, greater long-term heat resistance and better chemical resistance. ASA is significantly more resistant to cracking due to environmental stress than ABS. It has a lower glass transition temperature, providing better low-temperature properties to the material
.
The ASA is characterized by having a high resistance to outdoor weathering; retaining its brightness, color and mechanical properties. It has good chemical and heat resistance, high gloss, good antistatic properties, being resistant and rigid
.
Thanks to exhaustive quality control, a constant diameter is guaranteed throughout the winding, something that will make your prints of much higher quality, avoiding jams in your machine. In the same way, the process guarantees the absence of chemical impurities that could modify the physical/chemical/aesthetic properties of the product.