PTFE Porosity

The microstructure of PTFE can be described as roughly parallel-running clumps of material (nodes) with perpendicular fibers connecting them. Fibers connected between the nodes are called fibrils. Porosity is a function of the distance between the nodes. As the internodal distance decreases, porosity decreases. Conversely, as the internodal distance increases, porosity increases. Rollover the image below to see the difference between nodes and fibrils.

Measurements are shown in microns (µ) a metric unit of distance equal to one millionth of a meter. The micron, officially obsolete as a term of measurement, is sometimes used in place of micrometer. A human hair is said to be about 50 micrometers wide.

The images were contracted specifically for IPE through scanning electron microscopy (SEM). Click on the images for a larger view.

See PTFE being
flexed and
compressed.

FluoroFlex™
Endoscopic Working Channels

SuperFlex™
Wire-reinforced
Endoscopic Working Channels

About PTFE

PTFE Porosity

Thermoplastic
Extrusions