Polymaker PolyFlex™ TPU90, created from Covestro’s Addigy® TPU family offers the highest degree of flexibility in the PolyFlex™ family. With a shore hardness of 90A and an elongation to break of 585% this flexible filament is extremely soft while still being printable. TPU90 is certified with ISO10993 allowing it to be used for medical and skin contact devices.

PolyFlex™ TPU90 is easier to print than similar flexible material thank to its high melt index.

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, Drying and Annealing Settings?

Printing Temperature: 210˚C – 230˚C
Bed Temperature: 25˚C – 60˚C
Printing Speed: 30mm/s – 60mm/s
Fan: ON

Direct Drive:
Retraction Distance: 3mm
Retraction Speed: 40mm/s
Indirect Drive:
Retraction Distance: 6mm
Retraction Speed: 60mm/s

Drying Settings: 70˚C for 8h
(Only if the material has absorbed moisture)

Spool Dimensions?

0.5kg cardboard spool:
Spool Inner Hole Diameter: 55±1mm
Spool Diameter: 200±1mm
Spool Width: 65.6±2mm
Spool Weight: 190±7g

0.75kg cardboard spool:
Spool Inner Hole Diameter: 55±1mm
Spool Diameter: 200±1mm
Spool Width: 50.6±2mm
Spool Weight: 125±7g

1kg cardboard spool:
Spool Inner Hole Diameter: 55±1mm
Spool Diameter: 200±1mm
Spool Width: 65.6±2mm
Spool Weight: 140±7g

2kg cardboard spool:
Spool Inner Hole Diameter: 55±1mm
Spool Diameter: 250±1mm
Spool Width: 117.2±2mm
Spool Weight: 370±18.5g

3kg cardboard spool:
Spool Inner Hole Diameter: 55±1mm
Spool Diameter: 250±1mm
Spool Width: 117.2±2mm
Spool Weight: 425±21.3g

5kg plastic spool: 32mm/300mm/160mm/819g
Spool Inner Hole Diameter: 32±1mm
Spool Diameter: 300±1mm
Spool Width: 160±1mm
Spool Weight: 819±30g
Spool Material: PP