eFil TPU 90A OUTLET

eFil TPU 90A belongs to the eFil family of flexible TPU-based filaments. Its hardness is Shore 90A , which combines a high degree of flexibility while maintaining ease of printing . In addition, we can obtain different degrees of hardness by varying the percentage of filling during 3D printing. The 90A hardness can reach 470% elongation and is what we can find, for example, in the sole of a work boot. Its tensile strength reaches 35 MPa and impact resistance is 126 N / mm.

EFil TPU 90A has excellent properties of chemical resistance both to acids and bases, as well as to a wide variety of solvents. It also has extreme resistance to abrasion, impacts and perforations and can withstand temperatures up to 100ºC. On the other hand, it has great adhesion , so its printing does not present warping problems, even without using a heated bed or other fixing methods. This great adhesion gives a perfect bond between layers , which creates pieces that are much more resistant to tearing.

The recommended extruders for this filament are those in which the degree of traction on the filament can be regulated . The ideal traction point is where the extruder makes a strong pull on the filament without strangling it. If your printer does not have an extruder prepared for flexible filament, you may have to improve it to be able to work with eFil TPU 90A. The simplest improvement is to print a wedge-shaped piece that guides the filament into the barrel. Check previously the models compatible with your printer. It is advisable not to use Bowden extruders. It is always advisable to slow down the printing speed until you have mastered the appropriate parameters for each printer. You can improve its performance with a previous drying of 30 to 60 minutes at 90ºC.