PTFE etched tube is surface-treated PTFE tubing, used mainly in medical and industrial applications and usually paired with FEP heat shrink tubing. Three production routes are available — free extrusion, mandrel extrusion and dip coating — selected to suit the part.
| Extruded PTFE liner | Co-extruded PTFE liner | Coating PTFE liner | |
|---|---|---|---|
| Mandrel | None | Silver-plated copper | Silver-plated copper |
| Inner diameter (ID) | 0.004″ – 0.120″ | 0.35 – 1.5 mm | 0.1 – 1.8 mm |
| ID tolerance | ± 0.001″ | ± 0.0005″ | ± 0.0005″ |
| Wall thickness | 0.00075″ – 0.0010″ | 0.02 – 0.04 mm | 0.005 – 0.012 mm |
| Length | 90″ max | 90″ max | 2500 mm |
| Surface treatment | Etched | Etched | Etched |
| Sterilization | Autoclave, EtO | Autoclave, EtO | Autoclave, EtO |
| Strength | ●●●●○ | ●●●◐○ | ●●●○○ |
| Flexibility | ●●●●○ | ●●●●◐ | ●●●●● |
Chemically etched onto the catheter outer diameter and used together with FEP heat shrink tubing. Its main job is to provide low friction and form the inner layer of the lumen. Widely used in cardiovascular and neurosurgical work, and common in cardiac catheters, vascular stents and neural implants.
Inner diameter, wall thickness, length and operating environment — those four settle the item. We reply with TDS, MSDS and MOQ.