Polymaker PolyFlex™ TPU-90A Filament

Polymaker PolyFlex™ TPU-90A is a high-quality flexible 3D printing filament designed for applications requiring maximum flexibility and elasticity. With a 1.75 mm diameter and a 750 g spool weight, this TPU filament combines excellent tear resistance, wear resistance and elongation. With a Shore hardness of 90A, it is noticeably more flexible than TPU 95A while maintaining sufficient structural strength for functional parts.

Why choose PolyFlex™ TPU-90A?

• Extra flexibility (Shore 90A): Greater elasticity and stretch compared to TPU 95A.
• High wear resistance: Withstands friction and mechanical stress.
• Tear resistant: Suitable for parts under tension or repeated load.
• Functional and durable: Ideal for heavily used rubber-like components.
• Consistent print performance: Engineered for reliable results on modern FDM 3D printers.

Technical specifications

• Material: TPU (Thermoplastic Polyurethane)
• Shore hardness: 90A
• Diameter: 1.75 mm
• Net spool weight: 750 g
• Printing temperature: 210–230°C
• Bed temperature: 25–60°C recommended
• Properties: Highly flexible, wear resistant, tear resistant

Printing requirements & recommendations

• Extruder: Direct drive extruder strongly recommended for optimal filament control.
• Bowden setups: Less suitable due to increased risk of filament compression.
• Print speed: Print slowly for best results and consistent extrusion.
• Nozzle: Avoid very small nozzle diameters to reduce clogging risk.

Applications

PolyFlex™ TPU-90A is ideal for applications requiring enhanced flexibility such as shoe soles, elastic couplings, tyres, seals and other rubber-like components. Its combination of high elasticity and tear resistance makes it perfect for functional parts subjected to repeated bending or mechanical stress.

Note: Proper printer configuration is essential for optimal performance. Flexible filaments require adjusted speed and extrusion settings for stable print quality.