Flexible TPU Filament with Bright, Functional Performance

Spectrum S-Flex 90A Filament in Bahama Yellow combines vibrant color with dependable mechanical performance. Engineered with a Shore hardness of 90A, this TPU filament offers a balanced blend of flexibility and strength—making it ideal for functional parts that need to bend, absorb impact, or maintain durability under stress.

Compared to softer TPU materials, S-Flex 90A is easier to print and more predictable, giving makers and professionals a reliable flexible filament for everyday use.

Key Features & Benefits

• 90A Shore Hardness for Balanced Flexibility
  Provides elasticity while maintaining structural stability
• Improved Printability vs Softer TPU
  Easier feeding and extrusion with fewer print issues
• High Durability & Impact Resistance
  Suitable for parts exposed to wear, stress, and repeated flexing
• Excellent Layer Adhesion
  Strong, consistent prints with reduced risk of layer separation
• Bright Bahama Yellow Finish
  Highly visible color ideal for safety parts, prototyping, and design work
• Abrasion & Chemical Resistance
  Performs well in demanding environments and real-world applications

Typical Applications

This flexible TPU filament is ideal for a wide range of use cases:

• Safety components and high-visibility parts
• Protective covers and cases
• Flexible hinges and connectors
• Gaskets, seals, and dampening elements
• Tool grips and ergonomic accessories
• RC, automotive, and wearable components
• Vibration isolation mounts

Material & Compatibility

• Material Type: TPU (Thermoplastic Polyurethane)
• Diameter: 1.75mm
• Spool Weight: 0.25kg

Compatible with most FDM/FFF 3D printers that support flexible filaments:

• Direct drive extruders are recommended for best control
• Bowden setups can be used with slower speeds and tuning
• Heated bed improves adhesion and consistency
• Works well on PEI, textured build plates, or glass with adhesive

Printability & Performance

• Ease of Printing: Moderate and user-friendly for TPU
• Surface Finish: Smooth with a slightly satin flexible texture
• Bed Adhesion: Strong with proper surface preparation
• Warping: Minimal
• Stringing: Reduced compared to softer TPU grades

S-Flex 90A is designed to minimize common TPU challenges while delivering reliable and repeatable results across a wide range of printers.

Why Users Choose Spectrum S-Flex 90A

Spectrum S-Flex 90A is trusted by makers, engineers, and small businesses for its consistent performance and practical flexibility. It offers a dependable solution for users who want flexible prints without the difficulty typically associated with softer materials.

The Bahama Yellow color adds functional visibility, making it especially useful for safety-focused designs, prototypes, and parts that need to stand out.

Bring Flexibility and Visibility to Your Prints

Choose Spectrum S-Flex 90A Bahama Yellow to produce flexible, durable parts with confidence. Whether you're prototyping or creating end-use components, this filament delivers the performance, color, and reliability your workflow demands.