FEP & EFEP Tubing & Medical Extrusions
Fluorinated ethylene propylene (FEP) is widely used in medical tubing applications. FEP tubing offers excellent resistance to extreme high and low temperatures, excellent corrosion resistance, and outstanding optical clarity and flexibility.
EFEP is a terpolymer of ethylene, tetrafluoroethylene, and hexafluoropropylene. It was designed to have many of the same mechanical properties of ETFE, but with a lower processing temperature, allowing it to be coextruded with conventional thermoplastic polymers like polyamide, EVOH, and modified polyethylene. Due to its bonding ability, it adheres to these plastics without the use of adhesives or tie layers. EFEP is used in monowall, multi-lumen, and multilayer tubing.
As it is very lubricious and offers better flexibility than PTFE, FEP is an excellent material option for use as the inner layer of catheters or in the heat shrink form as a processing tool to reflow other thermoplastic materials. FEP is more versatile than silicone and other thermoset materials, as it can be melt-processed.
FEP tubing can be compounded with colorants or radiopacifiers for enhanced visibility of the product for medical applications such as IV catheters and vascular access introducers. FEP tubing may be striped with one or more stripes.
Medical grades of FEP tubing are USP Class VI compliant.
FEP Tubing Properties
- Highly resistant to extreme temperatures
- Excellent corrosion resistance
- Exceptional optical clarity
- Greater flexibility than PTFE
- High lubricity
- Highly versatile for use in numerous applications
- Can be compounded with special additives for greater visibility
- USP Class VI compliant