SUNLU PLA+ Silk, 1.75 mm, 1 kg 3D Printer Filament, Silk Rainbow 03

The SUNLU PLA+ Silk Rainbow 03 Filament is a 1.75 mm silk-finish PLA+ filament for FDM 3D printing, supplied on a 1,000 g spool. It produces a continuously changing rainbow colour effect with a smooth, glossy surface suited to decorative models, figurines, and display pieces. The PLA+ formulation is intended for consistent extrusion, good layer adhesion, and reduced warping compared with more demanding engineering materials. The diameter tolerance is rated at ±0.02 mm, which supports stable filament feeding through the extruder. This makes it suitable for most consumer FDM printers, including those using Bambu Lab AMS systems for multi-spool feeding.

Print parameters call for a nozzle temperature of 205 °C, adjustable up to 235 °C where the printer and slicer profile support it. The build plate temperature range is 50 to 60 °C, with a recommended printing speed of around 50 mm/s. Mechanical properties include a flexural strength of 65 MPa, an impact strength of 4.2 kJ/m², a tensile strength of 60.6 MPa, and an elongation at break of 6.3 %. The specific gravity is 1.25 g/cm³, consistent with typical PLA-based filaments. These figures indicate a material with moderate stiffness and impact resistance, suitable for non-functional decorative prints rather than load-bearing engineering applications.

• 1 kg spool of 1.75 mm PLA+ Silk filament with a silk-finish rainbow colour transition along its length
• Diameter tolerance of ±0.02 mm for stable feeding and consistent extrusion
• Nozzle temperature range of 205 to 235 °C with a recommended build plate temperature of 50 to 60 °C
• Flexural strength of 65 MPa and impact strength of 4.2 kJ/m² for moderate mechanical performance
• Elongation at break of 6.3 %, indicating relatively low ductility typical of PLA-based materials
• Specific gravity of 1.25 g/cm³, matching standard PLA density
• Compatible with most FDM 3D printers, including Bambu Lab AMS systems for multi-spool operation