ASA is the material for parts that work outdoors — 110 °C of declared temperature resistance, a matt surface, a warping tendency rated medium (with ABS it is high) and a difficulty level of medium rather than hard. It does, however, require exactly what ABS requires: a closed 50 °C chamber.
An honest note about UV: in the FDM technical data table the manufacturer has no separate field for UV resistance, so you will not find a figure or a standards-backed claim for it here. We only report what is in the FDM parameter table. In the table ASA has the highest bed temperature range together with PA — 90–120 °C.
Full ASA parameters
| Parameter | ASA |
|---|---|
| Nozzle temperature | 250–280 °C |
| Bed temperature | 90–120 °C |
| Recommended nozzle diameter | 0.4 mm |
| Cooling (fan) | 0–30% |
| Drying | 6–12 h at 40–60 °C |
| Enclosure (chamber) | closed frame, 50 °C chamber |
| Recommended printers | printer with an enclosure |
| Bambu AMS compatibility | Not recommended |
| Print difficulty level | medium |
| Print speed | high |
| Detail resolution | 0.2 mm and above |
| Abrasiveness (nozzle wear) | none |
| Warping tendency | medium |
| Stringing tendency | medium |
| Layer bonding | good |
| Support removal | easy |
| Temperature resistance | 110 °C |
| Impact resistance | high |
| Flexibility | high |
| Moisture resistance | low |
| Surface finish | matt |
| Opacity | opaque |
| Colour saturation | high |
| Odour | noticeable |
| Post-processing | easy |
| Chemical solubility | soluble — the manufacturer does not name a solvent |
| Spool material | recycled plastic |
| Recycled content in filament | no |
| Recyclability | no |
| Diameter tolerance | ±0.03 mm |
Source: the official Porima FDM technical data table (FDM Technical Data). The descriptive ratings (none / low / medium / high) are the manufacturer's own labels, not the result of testing to any standard. Temperature resistance is the manufacturer's own declared figure — it is not HDT, nor any other normed test. The ±0.03 mm diameter tolerance comes from the manufacturer's data, not from the FDM table. See also the print temperature table and the filament drying guide.
How to print ASA
A 50 °C chamber and a 90–120 °C bed
The hardware requirements here are tougher than for ABS: the lower bed limit is 90 °C, not 80 °C. In the printer-compatibility field the manufacturer writes printer with an enclosure, so an open frame is out. On large flat parts add a brim and avoid circulating air in the room.
Cooling 0–30%
A narrower range than for ABS (0–40%). The fan is off by default; switch it on only for short bridges. Excess cooling is a direct route to delamination — and on parts meant to work outdoors an interlayer crack is a critical defect, because that is where water gets in.
Drying 6–12 h at 40–60 °C
The same as ABS. Moisture resistance is rated low. Damp ASA gives a matt, porous surface and worsens an already awkward layer bond.
Solubility: the manufacturer does not name a solvent
In the solubility field the table gives ASA a value of low, but — unlike ABS (acetone) and HIPS (D-limonene) — with no solvent named. We are not filling that in on the manufacturer's behalf. It rates post-processing as easy.
Bambu AMS: Not recommended
The manufacturer does not mark ASA as incompatible, merely advises against it. It gives no justification; in practice the material needs a closed 50 °C chamber anyway, and the AMS is usually mounted outside the heated enclosure.
Speed and detail
Print speed: high. Detail resolution: 0.2 mm and above. Support removal: easy. Abrasiveness: none, so an ordinary brass nozzle is enough.
The most common problems with ASA
Filament from this page: ASA Porima 1 kg. Category: technical filaments.
For outdoor applications, batch-to-batch repeatability is what counts. Porima filaments are produced to a ±0.03 mm diameter tolerance, and we publish the manufacturer's full official print data — you don't have to guess it. Our warehouse is near Poznań, in Swarzędz.
ASA Porima · Technical filaments · All print parameters · How to beat warping