During catheter construction, many designs incorporate a supplemental layer added to the liner before braiding reinforcement is applied. This layer, frequently termed a tie layer, is a convenient method to enhance adhesion between layers. This is especially beneficial for catheter construction where delamination of layered components can be a significant failure.
Zeus tie layer is a thin polymer coating typically applied over PTFE or FEP liners during catheter construction. The tie layer is a fully melt-bondable surface that allows for full encapsulation of the braid during the jacket reflow process.
- Can Be Applied Over Any Free Extruded Zeus Liner
- Coating Thickness As Low As 0.0001″ (0.0025 mm.)
- Full Braid Encapsulation
Tie layers are made from USP Class VI materials and may also be a good option for use with Zeus polyimide tubing. Strengthening catheter material adhesion can lead to fewer inspections, reduced production costs, and higher yields.
Tie Layer Materials Include:
- Pebax® – 25D To 72D Durometers
- Tecoflex® 80A & 93A [Thermoplastic Urethanes (TPUs)]
- Vestamid® 75D (Nylons)