PolyFlex™️ TPU90, created from Covestro’s Addigy®️ family, is a thermoplastic polyurethane (TPU) based filament designed to provide great flexibility without compromising on printing speed. Can my printer print PolyFlex™ TPU90? We highly recommend to use a direct drive printer to print PolyFlex™ TPU90. A direct drive printer is a printer with the extruder mounted on top of the hot end. Printing and Drying Settings? Printing Temperature: 210˚C - 230˚CBed Temperature: 25˚C - 60˚CPrinting Speed: 30mm/s - 60mm/sFan: ONDirect Drive:Retraction Distance: 3mmRetraction Speed: 40mm/sIndirect Drive:Retraction Distance: 6mmRetraction Speed: 60mm/sDrying Settings: 70˚C for 8h(Only if the material has absorbed moisture) What makes PolyFlex™ TPU90 unique? PolyFlex™ TPU90 is easier to print than similar flexible material thank to its high melt index. Spool Dimensions? 0.5kg cardboard spool:Spool Inner Hole Diameter: 55±1mmSpool Diameter: 200±1mmSpool Width: 65.6±2mmSpool Weight: 190±7g 0.75kg cardboard spool:Spool Inner Hole Diameter: 55±1mmSpool Diameter: 200±1mmSpool Width: 50.6±2mmSpool Weight: 125±7g 1kg cardboard spool:Spool Inner Hole Diameter: 55±1mmSpool Diameter: 200±1mmSpool Width: 65.6±2mmSpool Weight: 140±7g 2kg cardboard spool:Spool Inner Hole Diameter: 55±1mmSpool Diameter: 250±1mmSpool Width: 117.2±2mmSpool Weight: 370±18.5g 3kg cardboard spool:Spool Inner Hole Diameter: 55±1mmSpool Diameter: 250±1mmSpool Width: 117.2±2mmSpool Weight: 425±21.3g 5kg plastic spool: 32mm/300mm/160mm/819gSpool Inner Hole Diameter: 32±1mmSpool Diameter: 300±1mmSpool Width: 160±1mmSpool Weight: 819±30gSpool Material: PP