Flexible TPU Filament with High Visibility and Reliable Performance

Spectrum S-Flex 90A Filament in Lime Green is a premium TPU material engineered for flexibility, durability, and consistent print results. With a Shore hardness of 90A, it provides an ideal balance between elasticity and strength, making it suitable for both prototyping and functional end-use parts.

Designed to be easier to print than softer TPU variants, S-Flex 90A offers smoother extrusion and improved control—making it a reliable choice for hobbyists, makers, and professionals alike.

Key Features & Benefits

• Balanced 90A Shore Hardness
  Offers flexibility while maintaining structural stability and shape
• Improved Printability
  Easier to print than softer TPU filaments with fewer feeding issues
• Durable & Impact Resistant
  Built to withstand repeated flexing and real-world use
• Strong Layer Adhesion
  Produces consistent, reliable parts with minimal delamination
• Bright Lime Green Finish
  High-visibility color ideal for safety components and standout designs
• Abrasion & Chemical Resistance
  Suitable for demanding environments and long-term applications

Typical Applications

Spectrum S-Flex 90A is ideal for a variety of flexible and semi-flexible uses:

• Protective cases and enclosures
• Flexible hinges and connectors
• Gaskets, seals, and dampeners
• Ergonomic grips and handles
• Wearable components and accessories
• RC and automotive parts
• 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 recommended for best performance
• Bowden systems can be used with slower speeds and tuning
• Heated bed improves adhesion and consistency
• Works well on PEI sheets, textured build plates, and glass with adhesive

Printability & Performance

• Ease of Printing: Moderate and beginner-friendly for TPU
• Surface Finish: Smooth with a slightly satin flexible feel
• Bed Adhesion: Strong with proper setup
• Warping: Minimal
• Stringing: Reduced compared to softer TPU materials

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

Why Users Choose Spectrum S-Flex 90A

Spectrum S-Flex 90A is trusted for its reliable balance of flexibility and ease of use. It allows users to produce durable, flexible parts without the typical complexity associated with very soft materials.

The Lime Green color provides excellent visibility, making it ideal for safety applications, prototypes, and components that need to stand out.

Print Flexible Parts That Stand Out

Choose Spectrum S-Flex 90A Lime Green to create flexible, durable parts with confidence. Whether you're prototyping or producing end-use components, this filament delivers consistent performance and vibrant results.