Spectrum Filament S-Flex 90A
Soft TPU Elastomer | High Elasticity | 0.25-0.5kg Compact Spool
Spectrum S-Flex 90A is a high-grade thermoplastic polyurethane (TPU) engineered for parts that require a soft touch, significant damping properties, and high elastic recovery. With a Shore hardness of 90A, this material offers a more "rubbery" feel than the 98A variant, providing superior grip and energy dissipation.
Available in a high-visibility Lime Green, this 0.25kg mini-spool is the ideal choice for creating functional prototypes, custom seals, and specialized dampeners without the commitment of a large bulk purchase. Its exceptional interlayer adhesion ensures that printed parts are virtually airtight and watertight.
🧶 500%+ Elongation
Outstanding flexibility allows parts to stretch and bend repeatedly without losing their structural integrity or tearing.
🔇 Impact & Sound Damping
The lower durometer excels at absorbing mechanical vibrations and reducing noise in moving assemblies.
🧪 Chemical & Oil Resistance
Reliable performance when in contact with common industrial oils, lubricants, and fuels.
💧 Hermetic Sealing
The high thermal bonding between layers makes this filament perfect for leak-proof gaskets and protective bellows.
- Soft-touch anti-vibration mounts
- Custom seals, gaskets, and O-rings
- Protective boots and flexible bellows
- RC car tires and shock absorber parts
- Durable covers for handheld devices
- Functional hinges and flexible couplings
| Material Identity & Data | |
|---|---|
| Producer / Series | Spectrum Filaments / S-Flex 90A |
| Material Type | Soft TPU (Thermoplastic Polyurethane) |
| Filament Diameter | 1.75 mm ± 0.05 mm |
| Color | Glow in the Dark / BLOODY RED / LIME GREEN / LION ORANGE / PACIFIC BLUE / BAHAMA YELLOW / DEEP BLACK / POLAR WHITE |
| Net Weight | 0.25 kg |
| Shore Hardness | 90A |
| Density | 1.22 g/cm³ |
| EAN / SKU | 5903318301167 / 80064 |
| Nozzle Temperature | 220 - 240°C |
| Heated Bed Temperature | 40 - 60°C |
| Printing Speed | 15 - 35 mm/s (Slower is better for 90A) |
| Drying Recommended | Highly Recommended (60°C for 4 hours) |
| Extruder Type | Direct Drive recommended (Essential for soft TPU) |
| Retraction | Minimal (1-2mm) or Disabled to prevent buckling |
| Net Weight [kg] | Spool Type | Seal Condition | Batch Traceability |
|---|---|---|---|
| 0.25 | Small Prototype Spool | Vacuum Sealed + Desiccant | Verified Industrial Batch |
Access the official documentation for Spectrum S-Flex 90A:
* Expert Tip: 90A TPU is softer than standard filaments. To avoid jams, ensure your extruder's filament path is fully constrained. Using a high-quality PTFE tube and reducing print speed will ensure flawless results with this fluorescent lime green material.





































