Discovered in the 1930’s, PTFE is a well-known material that has excellent temperature, environmental and
chemical resistance; and is used in many electrical, industrial, medical, and consumer applications. PTFE
also has very low surface energy — making it very slippery and naturally hydrophobic. In the late 1960’s,
a process was developed to stretch PTFE film (known as expanded PTFE or ePTFE) to the point it becomes
porous, thus allowing passage of small molecules such as air and water vapor yet still repelling polar
liquids such as water. Expanded PTFE — often fabric supported as part of a layered composite — found
applications in areas such as in rain-resistant breathable clothing and many industrial venting applications

Download the brochure to learn more about the distinctions between sintered Porex Virtek PTFE and ePTFE, enabling you to make informed decisions for your specific applications.