About SUNLU ASA Filament 1.75mm 1KG

SUNLU ASA Filament 1.75mm 1KG is a high-performance 3D printing material specifically engineered for outdoor and functional mechanical applications. Manufactured by SUNLU, a specialist in advanced 3D printing materials, this ASA filament delivers exceptional weather resistance that effectively withstands UV rays, rain, and high temperatures. Unlike standard PLA or ABS, SUNLU ASA maintains fade-resistant color stability and shape integrity even after prolonged exposure to harsh outdoor conditions. With superior strength and excellent toughness, ASA outperforms both PLA and ABS in durability and environmental resilience. The filament features a precise 1.75mm diameter with ±0.02mm tolerance, ensuring smooth, clog-free extrusion and reliable layer adhesion critical for structural parts. Each spool contains 1KG of premium ASA material, optimized for printing at nozzle temperatures between 250-280°C with bed temperatures of 90-110°C. The expert-tested guidelines recommend using a glue stick or PEI sheet to eliminate warping, with print speeds ranging from 50-100mm/s at lower temperatures to 100-200mm/s at higher temperatures. Ideal for outdoor fixtures, automotive components, drone parts, marine equipment, architectural models, and any functional parts requiring long-term durability under external stress, SUNLU ASA is the professional choice for demanding 3D printing applications.

Technical Specifications

Comparison: ASA vs PLA vs ABS

Recommended Print Settings

• Nozzle temperature: 250-280°C (recommended: 260°C for balanced speed and quality)
• Bed temperature: 90-110°C (use glue stick or PEI sheet for optimal adhesion)
• Alternative bed temperature: 80-120°C (176-248°F) depending on printer capability
• Print speed: 50-100mm/s at 250-260°C, or 100-200mm/s at 260-280°C
• Layer height: 0.08-0.28mm
• Cooling fan: 0-30% (minimal cooling recommended for strong layer adhesion)
• Retraction: 2.0-4.0mm (Bowden), 0.8-1.5mm (Direct Drive)
• Retraction speed: 25-45mm/s
• Infill: 20-30% for functional parts, 40-60% for structural components
• Wall thickness: 3-4 perimeters for durability
• Top layers: 4-5 for sealed surfaces
• Enclosure: Recommended for large prints to prevent cracking from temperature differential
• Bed adhesion: Glue stick or PEI sheet essential; brim recommended for large parts

Frequently Asked Questions

What is SUNLU ASA filament?

SUNLU ASA Filament is a high-performance 3D printing material designed for outdoor and functional applications. It offers exceptional UV, rain, and heat resistance, superior strength and toughness compared to PLA and ABS, reliable layer adhesion, and long-term durability. With ±0.02mm precision and clog-free printing, it is ideal for outdoor parts and mechanical components.

Is ASA stronger than PLA and ABS?

Yes. SUNLU ASA filament is stronger than both PLA and ABS. It delivers superior strength and excellent toughness, making it both durable and resilient. ASA is ideal for parts or structures that must endure long-term external stress, outperforming PLA in heat resistance and ABS in UV stability.

What makes ASA suitable for outdoor use?

ASA is specifically engineered for outdoor conditions. SUNLU ASA offers exceptional weather resistance, effectively withstanding UV rays without fading, resisting rain and moisture without degradation, and maintaining shape stability at high temperatures. This ensures printed parts remain functional and aesthetically stable even after prolonged outdoor exposure.

What are the recommended print settings for SUNLU ASA?

Nozzle temperature: 250-280°C. Bed temperature: 90-110°C with glue stick or PEI sheet to eliminate warping. Print speed: 50-100mm/s at 250-260°C, or 100-200mm/s at 260-280°C. Alternative bed temperature: 80-120°C (176-248°F). Enclosure recommended for large prints to prevent cracking.

Does SUNLU ASA cause clogging?

No. SUNLU ASA is formulated for smooth, clog-free printing. The ±0.02mm precision tolerance ensures consistent extrusion, while the optimized flow characteristics at 250-280°C prevent oozing and jamming. Reliable extrusion is maintained throughout long print jobs.

What is the dimensional tolerance of SUNLU ASA?

SUNLU ASA filament has a diameter of 1.75mm with a precision tolerance of ±0.02mm. This tight tolerance ensures consistent extrusion, smooth feeding, and reliable print quality, which is critical for achieving strong layer adhesion in functional and outdoor parts.

How do I prevent warping when printing ASA?

To prevent warping with ASA, use a heated bed at 90-110°C with a glue stick or PEI sheet for optimal adhesion. An enclosed print chamber is highly recommended to maintain stable ambient temperature and prevent drafts. Ensure the first layer is properly squished and consider using a brim for large parts.

What applications is SUNLU ASA best suited for?

SUNLU ASA is best suited for outdoor applications such as garden fixtures, automotive parts, drone components, marine equipment, and architectural models. It is also ideal for functional mechanical parts including gears, brackets, housings, and structural components that require long-term durability, UV stability, and resistance to environmental stress.

About SUNLU

SUNLU is a specialized brand in 3D printing materials and accessories, recognized for quality and innovation in filaments. With a professional production line and rigorous quality control, SUNLU offers a wide range of filaments including PLA, PLA+, PLA Matte, PLA Silk, PETG, ABS, ASA, and specialty materials. All products undergo manual inspection and compatibility testing to ensure the best results on FDM 3D printers in the market.