3D printer filament Sunlu PLA+ Silk Tri-Color (red, yellow, blue) PLA+ Silk

The Sunlu PLA+ Silk Tri-Color filament in red, yellow, and blue is a PLA+ silk-finish 3D printing material designed to produce multicolored prints from a single filament. Using Multi Color technology, the filament shifts visually depending on light and viewing angle, giving decorative items, figurines, gadgets, and prototypes a distinct glossy appearance while retaining the mechanical advantages of PLA+.

Advantages

The filament provides a silky sheen and smooth surface straight off the printer, reducing the need for post-processing. It combines enhanced mechanical properties—greater toughness, flexibility, and impact resistance—with dimensional accuracy and low shrinkage for reliable printing. The tri-color configuration creates dynamic color transitions that enhance the visual appeal of finished models.

Suitable for

• Decorative models and display pieces
• Figurines and miniatures with color variation
• Prototypes and gadgets where appearance and moderate strength are needed
• Hobbyist and artistic projects requiring a glossy finish

When it may not be suitable

This filament is not intended for high-temperature applications or parts that will be repeatedly exposed to temperatures above its heat deflection range. While tougher than standard PLA, it is not a substitute for engineering plastics where very high mechanical or thermal performance is required. Very fine color control across large prints may be limited by the filament's intrinsic color transition pattern.

Key specifications

• Material: PLA+ (silk finish)
• Color: red, yellow, blue (tri-color filament)
• Density: 1.23 g/cm³
• Vicat softening temperature: 54 °C
• Heat deflection temperature: ~57 °C
• 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

How to use

Print this PLA+ Silk filament on FDM/FFF printers that support PLA-family materials. Use nozzle temperatures appropriate for PLA+ (start around the melting temperature range and adjust for your printer and part), ensure good bed adhesion (heated bed or adhesion aids as needed), and print at moderate speeds to preserve surface quality. Store the filament in a dry environment to prevent moisture uptake which can affect print quality.

What to consider before purchase

• Confirm your printer is compatible with PLA-family filaments and can maintain stable extrusion.
• Consider the intended operating temperature of the printed part due to the material's heat deflection range.
• Expect inherent color transitions — not uniform single-color extrusion across large parts.
• Plan for moisture control and storage (sealed container/desiccant) to maintain filament performance.

Usage recommendations

For best results, print at stable nozzle temperatures suited to PLA+ and use a heated or treated build plate for adhesion; keep spool sealed between uses. Test small calibration prints to dial in temperature and speed settings that balance surface gloss and mechanical strength.