LDO ASA Filament - UV-Resistant & Weatherproof for 3D Printing

The ASA-CF variant is reinforced with 15% carbon fiber for enhanced stiffness, dimensional stability, and heat resistance, making it ideal for demanding structural applications.

Built for the Outdoors: Superior UV & Weather Resistance

UV Resistant | Heat Deflection up to 100°C | Automotive-Grade Durability

LDO ASA is engineered for functional parts that must survive sun, heat, and weather. It retains strength and color over time, unlike standard plastics.

Designed for Outdoor & Automotive Environments

· Superior UV Stability— Fights Yellowing & Degradation: formulated for long-term outdoor use, LDO ASA provides exceptional resistance to UV radiation, ensuring your parts maintain their color and mechanical integrity season after season.

· High-Temp Resistance: HDT 100.2°C for better confidence in hot environments.

· Industrial Strength: flexural modulus of 3206 MPa delivers superior rigidity—over 36% higher than typical ABS—for functional parts that require robust, load-bearing performance.

· Remarkable All-Weather Stability: performance remains consistent (<5% variation) across an extreme temperature range from -30°C to 80°C.

· Precision-Grade Low Shrinkage: ASA shrinkage 0.4–0.7%; ASA-CF shrinkage 0.2–0.4% (better for large, precise parts).

Built for Demanding Environments

The Go-To Material for Automotive, Outdoor & Industrial Solutions

• Automotive exterior parts & components
• Solar panel mounts & outdoor brackets
• Outdoor surveillance housings
• Landscaping & gardening tools
• Architectural models
• Marine accessories

Choosing the Right Grade:

For general weatherproofing and impact resistance: Choose ASA.

For maximum stiffness, lowest shrinkage, and enhanced dimensional stability in structural parts: Choose ASA-CF.

Optimal ASA Print Guide

• Nozzle: 230–260°C | Bed: 90–110°C | Speed: 30–50 mm/s.
• Cooling Strategy: ①Enclosure recommended ②Do not use auxiliary fans or chamber fans.
• For ASA-CF:

1. Use a hardened or stainless steel nozzle to resist abrasion.
2. Reference temperatures: Nozzle ~260°C | Bed 80–110°C.
3. Prevent clogs by ensuring smooth filament path and using correct nozzle types.

Engineered for Consistency, Guaranteed in Every Spool

· Tight Diameter Tolerance: 1.75 ± 0.02 mm for consistent extrusion and superior surface quality with minimal banding.

· Neat winding: precision-wound spools prevent snags and jumps, reducing mid-print failures and frustration.

· Batch Consistency: smaller shifts in color/gloss—critical for multi-spool projects and worry-free reordering.

Specs That Translate to Superior Prints

• Flexural Modulus 3206 MPa: delivers the rigid, deflection-resistant structure required for solar panel mounts and load-bearing housings that must withstand sustained wind loads.
• Impact Strength 10.3 kJ/m²: provides exceptional toughness for gardening tools and outdoor equipment, enabling them to withstand accidental drops and impacts.
• HDT 100.2°C: maintains integrity in high-ambient-temperature environments, making it suitable for under-hood automotive components or enclosures near heat sources.
• Low Shrinkage:
• ASA: 0.4–0.7%  --- Ideal for architectural models and precise fittings. 
• ASA-CF: 0.2–0.4% --- The benchmark for large-format, high-tolerance functional parts.

Find Your Perfect Filament

• Want easy printing & mild odor but without enclosure? → Choose PLA.
• Need heat resistance and outdoor UV durability? → Choose ASA / ASA-CF.
• Need high toughness and engineering performance for indoor use? → Choose ABS.

Frequently Asked Questions

Q1: How does LDO ASA truly outperform standard ABS?

A: While both are tough, ASA’s decisive advantage is its formulated-in UV resistance. ABS degrades quickly outdoors—becoming brittle and yellowing within months. ASA is designed to withstand direct sunlight and weathering for years, maintaining both its mechanical strength and color. For any part facing the sun or elements, ASA isn’t just better—it’s the necessary choice.

Q2: Can I use prints from this filament to replace original car parts? 

A: This is a crucial distinction. LDO ASA is an excellent material for non-structural, exterior automotive applications, such as custom trim, grilles, or antenna housings, where UV and heat resistance are key.

However, for any load-bearing, safety-critical, or OEM replacement part (e.g., bracket holding a mirror), you must conduct proper engineering validation, testing, and certification specific to your project. We provide the material performance data; the final application engineering is your responsibility.

Q3:  Will ASA become brittle in freezing temperatures like some plastics?

A:ASA performs notably better than many standard thermoplastics in cold conditions. It maintains a greater degree of its impact strength and toughness at sub-zero temperatures, making it suitable for many outdoor applications year-round. For extreme cryogenic environments, specialized materials should be considered.