PC+PBT (Polycarbonate + Polybutylene Terephthalate) 3D Printing Filament Benefits of this material include: Superior stiffness/ductility balance Great structural integrity and drop impact performance Excellent fatigue performance High chemical resistance to motor oil and grease The color of this Natural filament is a white Manufactured in the USA from 100% virgin resin Recommended Print Settings: Extruder: 240-250°C Bed: 110°C + (the hotter the better) Bed Prep: ABS slurry, PEI bed, or glue