TPU Covestro 385SX
TPU Covestro 385SX
TPU Covestro 385SX is versatile polyester‑based TPU. It is well‑known for high transparency, outstanding mechanical strength and abrasion resistance. Balanced mechanical properties and good process‑adaptability support wide‑ranging applications.
Main Applications
Cable sheaths, industrial hoses, sports equipment, automotive seals and transmission‑related parts.
Physical Properties
| Property Category | Item | Test Method | Typical Data / Range | Unit |
|---|---|---|---|---|
| Physical Properties | Density | ISO 1183 | 1.20 / 1.24 | g/cm³ |
| Abrasion loss | ISO 4649 | 30 / 45 | mm³ | |
| Shore A Hardness | ISO 868 | 85 | Shore A | |
| Shore D Hardness | ISO 868 | 32 | Shore D | |
| Mechanical Properties | Tensile strength at break | ISO 37 | 40 / 50 | MPa |
| Elongation at break | ISO 37 | 450 / 550 | % | |
| 300% Modulus | ISO 37 | 17 | MPa | |
| Tear strength | DIN 53515 | 70 / 110 | kN/m | |
| Flexural modulus | ISO 178 | 15 | MPa | |
| Rebound resilience | ISO 4662 | 42 | % | |
| Compression set | ISO 815 | 30 | % | |
| Condition | — | 22℃,70h | — | |
| Compression set | ISO 815 | 55 | % | |
| Condition | — | 70℃,22h | — |
Processing Parameters
| Process | Parameter | Suggested Value | Unit |
|---|---|---|---|
| Pre‑drying | Circulating hot‑air drying | 80‑110℃, 3 h (adjust according to moisture & dehumidifier efficiency) | — |
| Injection molding | Melt temperature | 210‑230 | ℃ |
| Mold temperature | 20‑40 | ℃ | |
| Extrusion molding | Melt temperature | 200‑220 | ℃ |
Note: All information above is for reference only!
