
Sunlu ASA Filament 1.75 mm 1 KG
Experience durability and weather resistance with Sunlu ASA filament. This filament is ideal for outdoor use and functional mechanical parts, thanks to its excellent UV and weather resistance. With a diameter of 1.75 mm and a tolerance of ±0.02 mm, this filament fits most FDM 3D printers perfectly.
Product Features:
- UV and Weather Resistant: Sunlu ASA filament is designed to withstand harsh weather conditions and UV rays, making it ideal for outdoor applications.
- Strong and Durable: ASA filament combines the strength and durability of ABS with improved weather resistance, making it perfect for functional parts.
- No Clogging, No Bubbles: The filament is manufactured with a clog-free technology, ensuring a smooth and stable printing experience.
- Recommended Settings: For best print results, it is recommended to print at a nozzle temperature of 245-255°C and a bed temperature of 80-120°C. Print speed: 50-100mm/s
Built for outdoor use
Excellent resistance to UV, rain, and heat, ideal for long-lasting outdoor parts and high-temperature functional components.
Stronger and tougher than PLA/ABS
High strength with excellent layer adhesion, perfect for durable mechanical and structural prints.
Smooth and reliable printing
No clogging, no bubbles, no tangling, with ±0.02 mm precision for stable and trouble-free printing.
Diameter: 1.75 ± 0.02 mm
Print Temperature:
250–260 °C: 50–100 mm/s
260–280 °C: 100–200 mm/s
Print Plate Temperature: 80–100 °C
Net Weight: 1 kg/spool
Gross Weight: 1.3 kg/spool
Length: 1.75 mm (1 kg) ≈ 395 m

SUNLU ASA 3D Filament – Extreme Strength and Durability
ASA filament is an advanced material that is stronger and more resistant than both PLA and ABS. It offers high impact strength, excellent layer adhesion, and is also easy to work with. No clogging, no bubbles, no tangling – just reliable prints.
Perfectly Wound Spool – Compatible with Most Printers
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Spool dimensions: Diameter 8.00" / Width 2.50" / Hole Diameter 2.20"
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The design fits many FDM 3D printers, ensuring easy installation and smooth filament unwinding.
Precise Diameter for Smooth Extrusion
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Filament diameter: 1.75 mm
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Accuracy: ±0.02 mm
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The minimal variation makes ASA filament compatible with almost all 1.75 mm FDM 3D printers.
Recommended Print Settings
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Temperature: 250–260°C at 50–100 mm/s
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Temperature: 260–280°C at 100–200 mm/s
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Printbed: 90–110°C
Ideal for Outdoor and Functional Parts
SUNLU ASA is UV, rain, and heat resistant, making it perfect for functional, mechanical, and outdoor components where durability is crucial.

Specifications
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Diameter: 1.75/3.0 mm ± 0.02 mm
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Net weight: 1 kg per spool (also available as 0.9 kg)
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Length (1.75 mm, 1 kg): ≈ 395 meters

SUNLU ASA Filament – Professional Choice for Outdoor Use
SUNLU ASA filament is a high-performance 3D printing material developed specifically for demanding outdoor applications. It is extremely weather-resistant and easily withstands UV radiation, rain, and high temperatures. Even after prolonged exposure, the material retains its dimensional stability and color fastness.
Robustness and Long Lifespan
With high strength and excellent toughness, ASA is both wear-resistant and resilient to long-term stress. It is ideal for parts and structures exposed to prolonged outdoor pressure and impact.
Perfect for Professional and Industrial Purposes
Thanks to its mechanical properties and high weather resistance, ASA is a popular choice in industries such as:
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Automotive industry (components and details)
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Architecture (facade elements, outdoor brackets)
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Garden tools and equipment
SUNLU ASA is the obvious choice for projects requiring durability, reliability, and long lifespan.

SUNLU ASA Filament – Extreme Durability and UV Protection
SUNLU ASA filament is known for its high strength, impact-modified properties, and outstanding weather resistance. It is designed to withstand even the most demanding outdoor conditions, making it ideal for long-term outdoor use.
With UV resistance 10 times higher than ABS, ASA ensures that your prints will not fade, crack, or deform, even after prolonged exposure to sunlight and weather.
Key Features
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High strength and impact resistance
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Excellent UV and weather resistance
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Long durability in outdoor environments
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Perfect for functional, outdoor, and industrial components

SUNLU ASA Filament – Designed for Extreme Conditions
SUNLU ASA filament is an advanced 3D printing material designed to handle demanding outdoor environments. With its high impact strength, UV resistance, and excellent weather resistance, it is ideal for both functional and industrial applications.
Features that Make a Difference
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UV resistance: 10 times stronger than ABS – prevents yellowing and degradation from sunlight
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Waterproof and moisture-resistant: Withstands rain and high humidity without deformation
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Heat resistance up to 90°C: Maintains shape at high temperatures – ideal for technical applications
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Long-term durability: Retains strength and appearance even after prolonged outdoor use
Applications
Suitable for:
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Automotive components and engine covers
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Outdoor tools and fixtures
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Prototypes and functional parts for harsh environments

Print ASA with Perfection – SUNLU’s Expert Guide
Achieve optimal results with SUNLU ASA filament by following these thoroughly tested settings and recommendations:
Temperature Control – Stable and Even Extrusion
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Nozzle temperature: 250–280°C
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Use the lower end for detailed prints (50–100 mm/s) and the higher end for faster production (100–200 mm/s)
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Provides smooth flow and reduces the risk of dripping and unwanted stringing
Perfect First Layer – Optimal Adhesion
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Printbed: 90–110°C
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Use a glue stick or PEI plate to prevent warping
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Ensure good first layer adjustment for maximum stability
Speed and Cooling – Balanced Performance
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250–260°C at 50–100 mm/s
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260–280°C at 100–200 mm/s
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Bed temperature: 80–120°C
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Recommended cooling: Low or no fan – ASA requires slow cooling to prevent layer separation
Enclosed Print Chamber – Prevent Cracks and Warping
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Use an enclosed printer with a stable internal temperature (~50°C)
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Protect against drafts and temperature fluctuations that can cause cracks in the model
Filament Storage – Preserve Quality Between Uses
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Store ASA in airtight bags with silica gel
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Avoid moisture absorption, which can lead to bubbles and poor adhesion
SUNLU ASA is a high-quality choice for functional and outdoor 3D printing. With proper setup, you'll achieve prints that are strong, accurate, and weather-resistant – every time.


Recommended print settings
| Setting | Value |
|---|---|
| Drying settings (hot air oven) | 80 °C |
| Humidity during printing and storage | < 20 % RH (sealed, with desiccant) |
| Nozzle temperature | 250–260 °C: 50–100 mm/s 260–280 °C: 100–200 mm/s |
| Print bed temperature | 80–100 °C |
| Print speed | 50–200 mm/s |
Physical properties
| Property | Value |
|---|---|
| Density | 1.05 g/cm³ |
| Vicat softening temperature | 105 °C |
| Heat deflection temperature | 96 °C |
| Melting temperature | 120 °C |
| Melt flow index | 15.5 g/10 min |
Mechanical properties
| Property | Value |
|---|---|
| Tensile strength | 50 MPa |
| Elongation at break | 20 % |
| Flexural strength | 73 MPa |
| Flexural modulus | 2144 MPa |
| Impact strength | 18 kJ/m² |
| Color | Hex Code | Display |
|---|---|---|
| Black | #000000 | |
| Natural | #f4f2eb | |
| White | #ffffff | |
| Grey | #75787b | |
| Red | #bc2726 | |
| Blue (Klein Blue) | #1729ab | |
| Yellow | #fff13f | |
| Green | #1daa27 | |
| Lavender Purple | #685bc7 | |
| Mocha Mousse | #a47b67 |
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