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 infill during 3D printing. The 90A hardness can reach 470% elongation and is the one we can find, for example, in the sole of a work boot. Its tensile strength reaches 35 MPa and the impact resistance is 126 N/mm.



 TPU Filament 90A Brown Beige
 
eFil TPU 90A belongs to the eFil family of flexible filaments based on TPU plastic. 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 rubber sole of a work boot. Its tensile strength reaches 35 MPa and the impact resistance is 126 N/mm.
 
eFil TPU 90A has excellent chemical resistance properties to both acids and bases, as well as to a wide variety of solvents. It also has extreme resistance to abrasion, impacts and punctures and can withstand temperatures up to 100ºC. In addition, 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 provides a perfect bond between layers , which creates parts 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 pulls strongly on the filament without throttling it. If your printer does not have an extruder prepared for flexible filament, you may need to upgrade it to be able to work with eFil TPU 90A. The easiest upgrade is to print a wedge-shaped piece that guides the filament towards the barrel. Check the models compatible with your printer beforehand. It is advisable not to use Bowden extruders. It is always advisable to reduce the printing speed until you master the parameters appropriate for each printer. You can improve its performance with a pre-drying of 30 to 60 minutes at 90ºC.


 You can find it in 250g, 500g and 1Kg filament spools. Available in diameters: 1.75 mm and 2.85 mm.