Technical Sunlu ASA filament in white is ideal for functional 3D prints for outdoor use – it offers high resistance to UV radiation, rain and higher temperatures, while maintaining strength, colour stability and dimensional stability for a long service life of printed parts.

Durable 3D printing for outdoor use
ASA filament is designed for real-world conditions. Prints are resistant to UV radiation, moisture and temperature, making them suitable for outdoor installations, garden elements, electronics covers or automotive applications.

Precise diameter for stable extrusion
Thanks to its ±0.02 mm accuracy and consistent winding, the filament feeds smoothly and helps achieve high-quality layers and reliable printing even on longer projects.

Strength for functional parts
Sunlu ASA offers a tensile strength of 50 MPa and good impact resistance, making it suitable for parts designed to withstand long-term use and mechanical stress.
Sunlu ASA (acrylonitrile styrene acrylate) is a reliable 3D printing material for situations where PLA is not sufficient and long-term durability is required. It is designed for outdoor use and demanding technical applications – prints retain their shape and properties when exposed to sunlight, moisture and fluctuating temperatures.
The filament delivers stable printing and strong layers. Thanks to its precise diameter of 1.75 mm (±0.02 mm), it provides smooth feeding and consistent extrusion, helping to achieve a clean surface and accurate dimensions.
Main benefits of Sunlu ASA filament:
- Outdoor durability – resistance to UV radiation, rain and temperatures without rapid material ageing.
- Mechanical strength – suitable for functional parts exposed to stress.
- Dimensional stability – lower risk of deformation when printing is configured correctly.
- Wide range of printing options – recommended speeds of 50–200 mm/s depending on the extrusion temperature.
Specifications
- Manufacturer
- Sunlu
- Material
- ASA (acrylonitrile styrene acrylate)
- Colour
- white
- Filament diameter
- 1.75 mm (±0.02 mm)
- Density
- 1.05 g/cm³
- Printing temperature
- 250–260 °C (50–100 mm/s) / 260–280 °C (100–200 mm/s)
- Build plate temperature
- 80–100 °C
- Printing speed
- 50–200 mm/s
- Curing temperature
- 80 °C
- Storage humidity
- < 20% RH (in a sealed container with desiccant)
- Vicat softening temperature
- 105 °C
- Heat deflection temperature
- 96 °C
- Melting temperature
- 120 °C
- Melt flow index (MFI)
- 15.5 g/10 min
- Tensile strength
- 50 MPa
- Flexural strength
- 73 MPa
- Flexural modulus
- 2144 MPa
- Elongation at break
- 20%
- Impact resistance
- 18 kJ/m²
- Weather resistance
- high resistance to UV radiation, rain and temperature