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ASA Ultrafuse

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Brand: BASF

Condition: New product

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39,95 €

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Engineering ASA filament with UV resistance, and excellent mechanical and thermal properties.

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Usage tips
Specifications

One of the materials in BASF’s portfolio of engineering filaments is the Ultrafuse ASA filament. ASA (acrylic styrene acrylate) is a high performance amorphous thermoplastic that resembles ABS a lot on the molecular level and in its mechanical properties since it was developed in the 1970s as an alternative to ABS. The main structural difference is that ASA contains acrylate rubber instead of butadiene rubber as an impact modifier, which gives ASA ten times the UV resistance of ABS, better heat resistance and higher chemical resistance, as well as overall greater resistance to environmental cracking.

A ventilation duct 3D printed with the Ultrafuse ASA filament

Image 1: A ventilation duct 3D printed with the Ultrafuse ASA filament. Source: BASF.

This is precisely the feature that distinguishes ASA - high weathering resistance. It makes ASA ideal for the additive manufacturing of parts that need to be outdoors but not lose their mechanical properties or color/gloss. ASA is widely used in the automotive industry thanks to its resistance to harsh conditions, especially high temperatures and chemicals. It is also a popular material in the manufacturing of outdoor furniture, toys, electrical installations, gutter and drain pipes, or commercial siding for buildings. In 3D printing, ASA is mostly used for general prototyping for parts that need to stand a great amount of impact without breaking.

The Ultrafuse ASA filament is the ideal material for making prototypes but also end use parts with excellent mechanical and thermal behavior. The parts will preserve their dimensional stability, mechanical properties and appearance even in the harshest conditions of use, such as exposure to impacts, cold weather, heat, rain or UV radiation.

Impact strength (KJ/m2)	8.7
Elongation at break (%)	4.5
Tensile strength (MPa)	34.6
Tensile modulus (MPa)	1828
Flexural strength (MPa)	59.4
Flexural modulus (MPa)	1733
UV resistance	UV resistance
Chemical resistance	Chemical resistance

ASA is a very versatile 3D printing material and it can be used together with the Ultrafuse HIPS support material to 3D print complex geometries and structures.

The Ultrafuse ASA filament should be printed at 260-280 ºC at a speed of 30-60 mm/s. SInce ASA is quite prone to warping, deformation and cracking caused by sudden temperature changes, it is highly recommended to use a 3D printer with a closed passive chamber, especially for big parts, and to limit the use of the layer fan to minimum. The bed should be heated to a temperature of 100-120 ºC to further avoid deformation. To improve bed adhesion of the Ultrafuse ASA filament to the printing surface, Kapton Tape or an adhesive spray can be used.

In order to ensure the longevity of the Ultrafuse ASA filament and successful prints, the filament should be stored in its original package, with a filament drying capsule for a better effect, or in a vacuum sealed bag or an intelligent filament container. During printing, the spool can be placed in a drying case or an inline filament dryer. If the Ultrafuse ASA filament absorbs too much moisture, it should be dried in a hot dryer or vacuum oven for 4-16 hours at 60 ºC.

General information
Manufacturer	BASF
Material	ASA
Format	Spool of 0.75 Kg
Density	1.07 g/cm³
Filament diameter	1.75 or 2.85 mm
Diameter tolerance	-
Filament length	291.4 m (Ø 1.75, 0.75 kg) 109.9 m (Ø 2.85, 0.75 kg)
Color	Black, Natural
RAL/Pantone	-
Printing properties
Printing temperature	260 -280 ºC
Base/bed temperature	100 - 120 ºC
Chamber temperature	✓
Layer fan	✗
Recommended print speed	30 - 60 mm/s
Mechanical properties
Izod impact resistance (ISO 180)	8.7 kJ/m² (notched) 36.8 kJ/m² (unnotched)
Charpy impact resistance (ISO 179-2)	8.9 kJ/m² (notched) 42.7 kJ/m² (unnotched)
Elongation at break (ISO 527)	4.5 %
Tensile strength (ISO 527)	34.6 MPa
Tensile modulus (ISO 527)	1828 MPa
Flexural strength (ISO 178)	59.4 MPa
Flexural modulus (ISO 178)	1733 MPa
Surface hardness	-
Thermal properties
Softening temperature (ISO 75-2)	101 ºC (@ 0.45 MPa)
Melting temperature	-
Specific properties
Transparency	✗
Additional information
HS Code	3916.9
Spool diameter (outside)	-
Spool diameter (inner bore)	-
Spool width	-

* The typical values listed in this table should be considered as a reference. Actual values may vary depending on the 3D printer model used, part design and printing conditions. We recommend confirming the final results and properties with your own tests. For more information, please refer to the product data sheet.