Dual color silk PLA For FDM 3D Printing 1KG 1.75mm. The dual-color filament combines red and golden or red and green or green and blue colors. Rotating the part to a different orientation changes the visible color. Recommended parameters PLA Nozzle Temp 220±10°C PLA Bed Temp 55°C - 60°C Density (g/cm³) 1.17-1.24(g/cm³ at 21.5°C) Retraction Distance 1mm Retraction Speed 20mm/s Glass transition temperature 60-65°C Tensile strength (X-Y) 28.1±1.3 MPa Bending strength 48±1.9 MPa