PTFE and FEP Liners in Catheter Tubing: Why the Lumen Is Often a Different Material
Why so many catheters use a thin fluoropolymer liner inside the shaft, how PTFE and FEP liners are made and bonded, and what that means for the rest of the build.
Medical Extrusion Resource
Independent guides, standards notes and process explainers on medical tubing extrusion — materials, tolerances, cleanroom practice and line design.
Why so many catheters use a thin fluoropolymer liner inside the shaft, how PTFE and FEP liners are made and bonded, and what that means for the rest of the build.
Each sterilization method stresses tubing materials differently. A practical look at EtO, gamma, e-beam and steam, which polymers tolerate which, and how to plan for it.
Why medical tubing is often built from more than one layer, how co-extrusion combines materials in a single wall, and where multi-layer construction is used.
What biocompatibility really requires for medical tubing, how the ISO 10993 framework works, and why material choice and processing both decide whether a tube passes.
A rundown of the leading medical tubing extrusion line manufacturers in 2026 — the global majors, a precision tooling specialist, and the best value pick for custom lines.