Sunlu PLA+ Silk Dual Color Filament Black and Green — PLA+ silk 3D printing filament, dual-color

Sunlu PLA+ Silk Dual Color Filament in Black and Green is a silk-grade PLA+ filament that creates two-tone, glossy prints without changing spools. The dual-color core produces subtle color shifts depending on viewing angle and lighting, giving decorative models, figurines, gadgets and prototypes a refined, silk-like appearance while remaining compatible with common FDM workflows.

Advantages

The filament provides a smooth, silky surface finish and vivid black‑and‑green tones that reduce the need for post-processing. Its improved mechanical properties increase flexibility and impact resistance compared with standard PLA, while consistent diameter and low shrinkage support stable feeding and reliable layer adhesion on most FDM printers.

Suitable for

• Decorative models and display pieces
• Figurines and collectibles
• Functional prototypes and gadgets requiring aesthetic finish
• Hobbyist and artistic 3D printing projects

When it may not be suitable

This filament is not intended for high‑temperature applications; its heat resistance is limited compared with engineering thermoplastics. For parts that must withstand sustained loads at elevated temperatures or require high chemical resistance, consider materials specifically designed for those conditions.

Key specifications

• Material type: PLA+ (silk finish)
• Color: Black and green (dual‑color)
• Density: 1.23 g/cm³
• Vicat softening temperature: 54 °C
• Heat deflection temperature: 57 ±3 °C
• Typical melting temperature: 164 °C
• Melt flow rate: 7 ±2.5 g/10 min
• Tensile strength: 50 ±4 MPa
• Elongation at break: 11 ±3%
• Flexural strength: 78 ±5 MPa
• Flexural modulus: 2600 ±300 MPa
• Impact resistance (X‑Y): 78 ±5 kJ/m²
• Dimensional tolerance: ±0.02 mm

How to use

Print Sunlu PLA+ Silk Dual Color on standard FDM printers using typical PLA settings as a starting point. Set nozzle temperature near the filament melting temperature and adjust within the printer’s recommended PLA range to optimise flow and surface finish. Use a heated bed if available or a suitable adhesive surface for first‑layer adhesion, and enable moderate print cooling to preserve the silk sheen. Monitor extrusion and retraction settings to avoid stringing while maintaining smooth color transitions.

What to consider before purchase

• Check printer compatibility with PLA and required nozzle/bed temperature ranges
• Consider the part’s operating temperature—this filament has limited heat resistance
• Expect visual color shifts depending on print orientation and lighting
• Plan retraction and cooling settings to reduce stringing and preserve surface gloss

Usage recommendations

Use standard PLA print profiles as a baseline; tune nozzle temperature, print speed and cooling to balance surface sheen and mechanical performance. For best aesthetic results, orient visible surfaces to maximise the dual‑color effect and avoid aggressive post‑processing that could remove the silk finish.