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FusRock — Industrial FDM Materials Solution
Date/Revised: 2025-12-01 Version No: 2.1
FusFlex™ TPU-Aero HR80

FusFlex™ TPU-Aero HR80 is a high-resilience, low-hardness, actively foaming flexible TPU material specifically developed for FFF printing technology. By controlling the printing temperature, different extrusion foaming ratios can be achieved, ultimately resulting in varying effects in weight reduction and softness. The surface hardness of FusFlex™ TPU-Aero HR80 printed parts can be controlled within the range of Shore 64A to 80A, with rebound resilience maintained at 48-51%. At the maximum foaming rate, FusFlex™ TPU-Aero HR80 can achieve up to 50% weight reduction compared to ordinary TPU materials, while the printed surface exhibits excellent fabric-like texture.

Product highlights

主动发泡技术

FusFlex™ TPU-Aero HR80 is a flexible TPU material that foams during the printing process. FusRock® utilizes a specialized extrusion processing technique to uniformly distribute inactive foaming agents within the TPU matrix. During printing, the expansion ratio of the foaming components can be freely controlled by adjusting the printing temperature, achieving various degrees of weight reduction and softness to meet diverse application requirements.

高回弹性能

FusFlex™ TPU-Aero HR80, through a special design of soft /hard polymer chain segment ratio, offers higher rebound resilience compared to other TPU foaming filaments. It efficiently converts absorbed impact energy into rebound energy, making it highly suitable for 3D printing various types of sports equipments and industrial cushioning components.

易于打印

FusFlex™ TPU-Aero HR80 avoids the defect of significantly reduced filament hardness after foaming by using a special extrusion processing technique. The unactivated foaming components act as rigid particles uniformly distributed within the TPU matrix, effectively increasing the surface hardness of the FusFlex™ TPU-Aero HR80 filament and reducing printing difficulty.

Product introduction

FusFlex™ TPU-Aero HR80 is a high-resilience, low-hardness, actively foaming flexible TPU material specifically developed for FFF printing technology. By controlling the printing temperature, different extrusion foaming ratios can be achieved, ultimately resulting in varying effects in weight reduction and softness. The surface hardness of FusFlex™ TPU-Aero HR80 printed parts can be controlled within the range of Shore 64A to 80A, with rebound resilience maintained at 48-51%. At the maximum foaming rate, FusFlex™ TPU-Aero HR80 can achieve up to 50% weight reduction compared to ordinary TPU materials, while the printed surface exhibits excellent fabric-like texture.

Product details

Parameter Value / range
Color White, Black, Bright Green, Pruple
Filament Ø 1.75 mm
Net weight 0.8 kg

Material properties

Physical properties

Property Test method Typical value
Density ISO 1183 1.05 g/cm³
Melt index - 190 g/10min

Recommended Print Flow Rate vs Temperature Chart

*Flow ratio based on printing test using Bambu Lab H2D ** Recommended printing temperature range ▲Given that different printers have varying hotend hardware, it is advisable to perform a manual flow calibration for the first print to determine the optimal extrusion flow at the current printing temperature.

Thermal properties

Property Test method Unit 220°C 230°C 240°C 250°C
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Mechanical properties

Property Test method Unit 220°C 230°C 240°C 250°C
Tensile Break Strength XY ISO527 MPa 8.67 ± 0.13 7.08 ± 0.05 4.94 ± 0.27 3.49 ± 0.08
Elongation at Break XY ISO527 % 703.23 ± 25.37 593.97 ± 34.45 466.06 ± 41.13 -
Printed Part Density - g/cm³ 0.84 0.73 0.62 0.52
Vicat Softening Point ISO306 °C 76.9 72.7 63.3 52.2

Printed specimen parameters:Specimens printed under the following conditions: Printer Bambu Lab H2D, Nozzle size 0.6mm,Layer height 0.3mm, Bed temp 45°C, Print speed 60mm/s, Infill 100%, Infill angle ±45°

Recommended printing settings

Parameter Value / range
Nozzle material Materials with hardness equal to or higher than hardened steel
Build surface PEI film or PEI coated build surface(Spray alcohol to help remove print parts)
Other suggestions
  • 1. TPU materials are prone to absorb moisture when exposed to air. It is recommended to place the FusFlex™ TPU-Aero HR80 filament into a dry box (humidity controlled below 15%) immediately after opening the vacuum aluminum foil packaging. Unused filament should be sealed back in the original aluminum foil packaging.
  • 2. For FusFlex™ TPU-Aero HR80 filament that has been exposed to air for a long time, it is recommended to dry the filament in an oven at 70-80°C for 4-6 hours before printing to avoid issues such as bubbles, holes, or stringing caused by moisture.
  • 3. Due to the continuous expansion of foaming materials in the hot end chamber, leakage is inevitable during travel movement. Even adjusting retraction distance and speed cannot improve this. It is recommended to disable retraction in the slicing software, print only one model at a time, or use the print-by-part function to reduce stringing and leakage caused by long-distance idle movements and jumps.
  • 4. Some of PEI textured or PEI film build plates may exhibit excessive adhesion to TPU materials, avoid forceful removal to prevent base layer damage. Apply a small amount of isopropyl alcohol (>80%) to the edge regions of the model's base. Wait 10-20 seconds to allow capillary penetration between the model and PEI surface, enabling non-destructive release. Alternatively, use an uncoated stainless steel build plate with a thin layer of polyvinylpyrrolidone (PVP) adhesive for controlled interfacial separation.

Disclaimer

Fusrock® 3D printing filaments are suitable for general printing applications and have been tested under standard conditions. However, the performance and safety of printed products are influenced by multiple factors, including printing parameters, model design, operating environment, and intended use. By using Fusrock® materials, users acknowledge and agree to independently evaluate the suitability of printed items for their specific applications and assume all associated risks. Fusrock® shall not be held liable for any damages, injuries, or losses resulting from the practical use of products printed with its materials, including but not limited to structural failures, malfunctions, or safety hazards in operational environments. Thorough testing must be conducted before applying printed components to critical, functional, or commercial scenarios. Fusrock® products are not certified for medical, aerospace, or life-support systems, except for certifications explicitly stated by Fusrock® for specific materials.