Expanded PTFE is manufactured by expanding 100% virgin PTFE using a proprietary process that produces a uniform and highly fibrillated microstructure with equal tensile strength in all directions. The lightweight ePTFE exhibits characteristics significantly different than any other type of PTFE sheet manufactured. This sheet is much softer, more flexible, and easier to compress than skived or restructured PTFE sheets and thus conforms easily to irregular and rough surfaces. Even though the sheet is soft and easy to compress, when PTFE fibers are expanded in a controlled manner, they become extremely strong. These high strength, biaxially-oriented fibers make ePTFE the PTFE product with the lowest creep and cold flow. Therefore, ePTFE can be safely used in temperatures that might cause other styles of PTFE to creep, lose bolt load, and leak. Expanded PTFE gasketing products are available flat sheets, rectangular profile sheet-like gasket tapes, and form-in-place joint sealant.
A PTFE manufacturing facility was experiencing leaks on an FEP Extruder that was originally designed to utilize a metal reinforced compressed asbestos gasket.
ETP Copper Process Case History
A metal manufacturer was looking for a replacement for asbestos compression packing.
CMS Plant Case History
A chemical plant was having issues with skived virgin PTFE gaskets failing in a heat exchanger application.
2774 Harsh Chemicals Case History
A customer was using a PTFE packing from another manufacture in an auger conveyor system.
Teadit 2773 for Wastewater Treatment
A wastewater facility was utilizing a graphite packing in their pumps and experiencing numerous issues (shaft scoring, short run duration, constant retightening, etc.).
Pulp & Paper
A pulp and paper mill was having issues with microcellular PTFE in the liquor lines of their digester process.
Bromine Manufacturing Case History
A chemical processing facility was utilizing PTFE envelope style gaskets on a circulation heater.
Teadit 946 Camprofile for Water Treatment
An environmental engineering and design company was working with a major pipe, valve, and fitting supplier to place butterfly valves into a specialized water decontamination unit.
