Frequently asked questions & answers
● What sets our PTFE liners apart? We offer them on silver-plated, copper-core mandrels, eliminating the need for stretching the liner onto another mandrel. Additional advantages include:
- Exceptionally thin walls (ranging from 0.00032" to 0.002").
- Precise dimensions.
- Remarkable flexibility with minimal stiffness added to the catheter shaft.
- Enhanced adhesion due to a strike layer (a thin thermoplastic outer layer).
- The choice between cut lengths or continuous-spooled lengths.
● Removing the Mandrel
Our silver-plated, copper-core mandrels remain securely in place throughout the entire catheter assembly process. These mandrels are designed to be pliable, facilitating effortless removal. Once your catheter is finished, a simple outward pull on the mandrel ends reduces its diameter, allowing your PTFE-lined catheter assembly to effortlessly slide off.
● Strike Layer Enhances Adhesion
Our PTFE liners on mandrels can be customized with a thin thermoplastic outer layer, known as a "strike layer", to augment adhesion. This additional layer significantly enhances the bond strength between the etched PTFE surface and the catheter assembly. We offer a diverse selection of thermoplastic materials for strike layers, including, but not limited to:
- Nylon (11 and 12)
- Pebax® (55D, 70D, 72D, and other variants available)
- Polyurethane (Tecoflex®)