eSun TPU 87A 1.75mm 1kg
RM169.00
| Key Specifications | |
|---|---|
| Printing Temperature | 220–250 ºC |
| Bed Temperature | 45–60 ºC |
| Printing Speed | 20–50 mm/s |
| Chamber Temperature | Ambient / unheated |
| Density | 1.12 g/cm³ |
| Tensile Strength | ≈ 52 MPa |
| Elongation at Break | ≈ 500 % |
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eSUN eFlex TPU 87A Filament 1.75mm 1KG – Ultra-Soft Flexible Filament for 3D Printing
eSUN eFlex TPU 87A is an ultra-soft flexible TPU filament with a Shore hardness of 87A, making it significantly softer than standard TPU 95A. This soft TPU filament is ideal for applications requiring high flexibility, such as phone cases, wearables, gaskets, and soft-touch components.
With transparent clarity and excellent elasticity, eFlex 87A offers up to 500% elongation before failure, making it perfect for parts that need to stretch, bend, and compress repeatedly without permanent deformation.
eSUN eFlex TPU 87A Key Features
- Shore 87A Hardness – Significantly softer than standard TPU 95A
- High Elasticity – Up to 500% elongation at break
- Transparent/Clear – Natural translucent appearance
- Excellent Flexibility – Bends and compresses without cracking
- Wear Resistant – Good abrasion resistance for functional parts
- Chemical Resistant – Resists oils, solvents, and water
TPU Shore Hardness Comparison
| Shore Hardness | Flexibility | Comparable To |
|---|---|---|
| TPU 87A (eFlex) | Very Soft | Rubber band, soft eraser |
| TPU 95A (Standard) | Medium Flexible | Shopping cart wheel, shoe sole |
| TPE 83A (eLastic) | Extra Soft | Silicone rubber |
eSUN eFlex TPU 87A Printing Parameters
| Parameter | Recommended Range | Notes |
|---|---|---|
| Nozzle Temperature | 220-250°C | Start at 230°C |
| Bed Temperature | 45-60°C | Or room temp with glue stick |
| Print Speed | 15-50mm/s | Slow speed critical |
| Cooling Fan | 100% | Full cooling recommended |
| Retraction | Minimal or Disabled | Soft TPU jams easily with retraction |
| Extruder Type | Direct Drive Required | Bowden not recommended |
| Drying | 55°C for 4+ hours | Dry before printing |
eSUN eFlex TPU 87A Material Properties
| Property | Value |
|---|---|
| Shore Hardness | 87A |
| Tensile Strength | 52 MPa |
| Elongation at Break | 500% |
| Density | 1.12 g/cm³ |
Test conditions per eSUN TDS V4.0
TPU 87A Filament Applications
- Phone Cases – Soft, shock-absorbing protective cases
- Wearables – Watch bands, bracelets, comfortable straps
- Gaskets and Seals – Flexible sealing components
- Soft-Touch Grips – Handle covers, tool grips
- Vibration Dampeners – Motor mounts, isolation pads
- Medical Prototypes – Soft tissue models, prosthetic liners
TPU 87A Printing Tips
- Direct Drive Required – Too soft for Bowden; will compress and jam.
- Print Slowly – Start at 20-30mm/s; faster causes jams.
- Minimize Retraction – 0-1mm max or disable completely.
- Dry Thoroughly – Dry at 55°C for 4-6 hours to avoid bubbling.
- Constrained Path – No gaps in filament path to extruder.
eSUN eFlex TPU 87A Specifications
| Brand | eSUN |
| Product Line | eFlex |
| Material | TPU (Thermoplastic Polyurethane) |
| Shore Hardness | 87A |
| Diameter | 1.75mm ± 0.05mm |
| Net Weight | 1kg per spool |
| Packaging | Vacuum-sealed bag with desiccant |
eSUN eFlex TPU 87A FAQ
Q: Can I print TPU 87A on a Bowden tube printer?
A: No, TPU 87A is too soft for Bowden systems. The flexible filament will compress and jam in the tube. A direct drive extruder is required.
Q: What’s the difference between TPU 87A and TPU 95A?
A: TPU 87A is significantly softer than TPU 95A. The lower Shore A number means higher flexibility. TPU 87A feels like a rubber band, while TPU 95A is more like a shopping cart wheel.
Q: Why are my TPU prints stringy?
A: Stringing is common with TPU. Disable retraction (or set to 0.5-1mm max), increase travel speed, and print at lower temperatures. Some stringing is normal and can be removed with a heat gun.
Q: Does TPU 87A need an enclosure?
A: No, TPU does not require an enclosure. It has minimal warping and prints well in open air.
Q: How flexible is the final print?
A: Very flexible. TPU 87A prints can be bent, stretched up to 5x their length, and compressed repeatedly without damage.
Related Products
Looking for other flexible filaments? Explore our collections:
- TPU Filament – All TPU options
- Specialty Filaments – Technical materials
- All eSUN Products – Browse full eSUN range
| Weight | 1.30 kg |
|---|---|
| Dimensions | 25.00 × 25.00 × 10.00 cm |
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