SUNLU Silk Rainbow PLA+ 1.75mm Filament 1kg Spool

The SUNLU Silk Rainbow PLA+ 1.75mm Filament delivers the magic of multicolor printing from a single spool, automatically transitioning through vibrant rainbow colors as you print. This upgraded silk formula changes color every 8 meters (approximately 24g), creating stunning gradient effects that cycle through red, orange, yellow, green, blue, purple, and pink without requiring filament changes or complex multi-extruder setups. Combined with the enhanced strength of PLA+ and luxurious silk finish, each print showcases brilliant color transitions with a smooth, glossy surface that requires no post-processing. The precision-wound 1kg spool ensures consistent color flow and tangle-free operation, making it perfect for artistic projects, decorative items, and eye-catching prototypes.

Whether you're creating vases, sculptures, or functional prints that demand visual impact, this rainbow silk filament transforms ordinary designs into spectacular color-shifting masterpieces that appear different from every viewing angle.

Key Features:

Automatic Rainbow Color Transitions: Changes color every 8 meters (24g) through a full spectrum cycle of red, orange, yellow, green, blue, purple, and pink, creating seamless gradient effects without manual intervention.

Enhanced PLA+ Performance: Superior strength, flexibility, and layer adhesion compared to standard PLA while maintaining easy printability and environmental friendliness of biodegradable material.

Premium Silk Finish: Luxurious glossy surface with silk-like sheen eliminates the need for sanding or polishing, delivering professional-quality aesthetics straight from the printer.

Optimized Color Distribution: Upgraded 8-meter formula provides more frequent color changes than standard 16-meter rainbow filaments, ensuring vibrant transitions even on smaller prints.

Professional Manufacturing: Precision machine-wound with ±0.02mm diameter accuracy, vacuum-sealed with desiccant for moisture protection, and clog-free design for reliable printing.

Universal Compatibility: Works seamlessly with most FDM 3D printers using standard PLA settings, requiring no heated bed while delivering consistent results across various print sizes.

Specifications:

Material: Enhanced PLA+ with silk additives and rainbow color transitions

Diameter: 1.75mm (±0.02mm tolerance)

Weight: 1kg (2.2 lbs) spool

Color Change Frequency: Every 8 meters (approximately 24g)

Color Sequence: Red → Orange → Yellow → Green → Blue → Purple → Pink (continuous cycle)

Nozzle Temperature: 205-215°C at 50-100mm/s; 215-235°C at 100-200mm/s

Bed Temperature: 50-60°C (heated bed optional but recommended)

Print Speed: 50-100mm/s (slower speeds enhance silk finish quality)

Layer Adhesion: Excellent interlayer bonding for strong, durable prints

Surface Finish: High-gloss silk texture with natural sheen

Storage: Vacuum-sealed with desiccant; store in dry, cool environment

Compatibility: Most FDM 3D printers supporting standard PLA temperatures

Applications: Artistic prints, decorative objects, vases, sculptures, prototypes, gift items