SUNLU TPU, Silk, 1.75 mm, 1 kg 3D Printer Filament, Black

SUNLU TPU Silk Black 1.75 mm 3D Printer Filament, 1 kg is a thermoplastic polyurethane filament for FDM/FFF printing. Its flexible material is intended for parts that need to bend or withstand impact, as well as decorative models. The stated Shore hardness is 98A, providing a defined measure of the material's hardness. A silk finish gives printed parts a smooth, glossy black appearance. The spool contains 1 kg of filament and is intended for printers that accept 1.75 mm material.

The recommended nozzle temperature is 220 °C, with a heated build plate set to 50–60 °C. The stated usable extruder tip temperature range is 210–240 °C. Wall and infill settings affect how flexible the finished part is: lower infill generally produces softer prints, while higher infill makes them more rigid. This allows the print's structure to be adjusted for different functional or decorative uses. The material combines flexibility with a glossy surface finish, making it suitable for parts where both characteristics matter.

• Print speed: 100 mm/s.
• Impact strength: 52 kJ/m².
• Elongation at break: 950%.
• Tensile strength: 22,000 kPa.
• Diameter tolerance: ±0.02 mm.
• Density: 1,210 kg/m³.
• Filament length: 330 m.