ASA Filament: The Best Material for Outdoor 3D Prints
Why ASA beats ABS and PETG for outdoor applications. UV resistance, weatherproofing, and print settings for reliable ASA prints.
The Outdoor Problem
PLA warps in the sun. PETG holds up better but still degrades under UV. ABS yellows over time. For truly weather-resistant prints, you need ASA.
What Makes ASA Special
ASA (Acrylonitrile Styrene Acrylate) is essentially ABS with UV stabilizers. It won't yellow, crack, or lose strength when exposed to sunlight, rain, or temperature swings.
ASA Print Settings
- Nozzle: 240-260°C
- Bed: 90-110°C
- Enclosure: Required (ASA warps without one)
- Speed: 40-60mm/s
- Cooling: Minimal (20-30%)
ASA vs ABS for Outdoor
Both need an enclosure. Both produce fumes. But ASA handles UV exposure dramatically better. After 6 months outdoors, ABS parts yellow and become brittle. ASA parts look like new.
Perfect Applications
Garden fixtures, automotive parts, drone frames, outdoor signage, weatherproof enclosures, and anything that lives outside permanently.
Pricing ASA Prints
ASA costs €17-25/kg, similar to ABS. But the slower print speed and need for an enclosure add to your costs. Use our calculator to find your true cost per part.
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