Flexible TPU Filament with Reliable Performance and Clean Finish

Spectrum S-Flex 90A Filament in Pacific Blue is a high-quality TPU material designed for users who need flexibility, durability, and consistent print results. With a Shore hardness of 90A, this filament offers an ideal balance between elasticity and structural strength—making it suitable for both prototyping and real-world functional parts.

Engineered to be easier to print than softer TPU grades, S-Flex 90A provides a more stable and predictable printing experience across a wide range of FDM/FFF 3D printers.

Key Features & Benefits

• Balanced 90A Shore Hardness
  Combines flexibility with enough rigidity for functional components
• Improved TPU Printability
  Easier extrusion and feeding compared to softer flexible filaments
• Durable & Impact Resistant
  Withstands repeated bending, stress, and everyday use
• Strong Layer Adhesion
  Produces consistent, reliable prints with minimal delamination
• Clean Pacific Blue Finish
  Smooth, professional appearance for both visible and functional parts
• Abrasion & Chemical Resistance
  Suitable for demanding environments and long-term applications

Typical Applications

Spectrum S-Flex 90A is ideal for flexible and semi-flexible parts such as:

• Protective cases and covers
• Flexible hinges and connectors
• Seals, gaskets, and dampeners
• Tool grips and ergonomic handles
• Wearable products and accessories
• Automotive and RC components
• Vibration-dampening 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 materials:

• Direct drive extruders are recommended for optimal control
• Bowden setups can be used with reduced speeds and tuning
• Heated bed improves adhesion and consistency
• Works well on PEI sheets, textured 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 setup
• Warping: Minimal
• Stringing: Lower than softer TPU grades

S-Flex 90A is designed to reduce common TPU challenges while maintaining excellent mechanical performance and repeatable results.

Why Users Choose Spectrum S-Flex 90A

Users choose Spectrum S-Flex 90A for its reliable balance of flexibility and ease of use. It provides a dependable solution for makers, engineers, and small businesses producing flexible parts that must perform under real-world conditions.

The Pacific Blue color adds a clean and professional look, making it suitable for both prototyping and finished products.

Print Flexible Parts with Confidence

Take your 3D printing projects further with Spectrum S-Flex 90A Pacific Blue. Whether you're creating prototypes or end-use parts, this filament delivers the flexibility, durability, and print reliability you need.