ASA
ASA filament — properties and applications
ASA (acrylonitrile styrene acrylate) is a derivative of ABS with added UV and weather resistance. It is suitable for outdoor applications.
Key properties
- Typical printing temperature 240–260 °C, bed 90–110 °C.
- Higher UV and weather resistance than ABS.
- Heat resistance around 90–100 °C.
- Resistant to colour fading.
- Warping tendency similar to ABS; an enclosed chamber is recommended.
Use cases
- Outdoor panels and enclosures
- Automotive exterior accessories and trim parts
- Garden and marine applications
- Technical parts exposed to UV
Advantages
- Superior UV and weather resistance
- Heat and impact resistance suited to automotive use
- High colour retention
Limitations
- Odour and fumes; ventilation required
- Warping risk; an enclosed chamber is recommended
- More limited colour and supply options than ABS
Frequently asked questions
What is the difference between ASA and ABS?
ASA is a UV and weather-resistant derivative of ABS; on outdoor parts, colour and mechanical properties are retained for longer.
How long does ASA last outdoors?
UV resistance is high, but service life depends on sun, temperature and load. Periodic inspection is recommended for critical parts.
What bed temperature suits ASA?
For first-layer adhesion, a 90–110 °C bed and a draught-free enclosed environment are recommended.