3D Printer Filament Sunlu PLA+ Silk Tri-Color (Black, Gold, Purple) PLA+ Silk

Sunlu PLA+ Silk Tri-Color filament in black, gold and purple is a PLA+ material for FDM/FFF 3D printers that delivers a glossy, silk-like surface and smooth color transitions in a single spool. Multi Color technology produces multitone prints that change appearance with viewing angle and light, making this filament suitable for decorative parts, figurines, prototypes and any project where visual appearance and a refined surface finish are important.

Advantages

The filament combines a silky sheen and smooth finish with improved mechanical properties compared to standard PLA. It prints with consistent diameter and low shrinkage for stable feeding, offers enhanced strength and flexibility for more durable prints, and produces eye-catching, glossy results without extensive post-processing.

Suitable for

• Decorative models and display pieces
• Figurines and collectible miniatures
• Prototypes and functional parts requiring good surface finish
• Gadgets and custom housings with aesthetic emphasis

When it may not be suitable

This filament is PLA-based and therefore has temperature limits typical of PLA variants; it is not intended for high-temperature environments or parts that must withstand prolonged heat exposure. For projects requiring very high thermal resistance or food-contact certification, consider alternative engineering materials or specially certified filaments.

Key specifications

• Color: black, gold, purple (tri-color transitions)
• Density: 1.23 g/cm³
• Vicat softening temperature: 54 °C
• Heat deflection temperature: 57 ± 3 °C
• Melting temperature: 164 °C
• Melt flow index: 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

How to use

Load the filament into any compatible FDM/FFF 3D printer and use standard PLA+ printing settings as a starting point. Match nozzle and bed temperatures to your printer and material behaviour—typical guidance is to print at temperatures around the filament's melting point while adjusting fan and print speed to optimise surface sheen and layer adhesion. Ensure the filament path is unobstructed and spool unwinds smoothly to preserve the tri-color transitions.

What to consider before purchase

• Check that your printer supports PLA+ and the recommended temperature range.
• Consider the operating temperature limits of PLA-based parts for your application.
• Expect color transitions—final appearance varies with part geometry and print orientation.
• Verify spool diameter and mounting compatibility with your printer's spool holder.

Usage recommendations

For best results, print at moderate speeds with fine layer heights to highlight the silk sheen and color transitions; test orientation and lighting to achieve the desired multicolor effect.