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.
Developing A Special Camprofile Gasket For a Pressure Vessel
Style 2007 in Chemical Slurry
A chemical processing facility was having issues maintaining adequate sealing on a slurry pump with their existing packing, requiring retightening every few hours.
Thermic Fluid Case History
Dual Packing Combination Kit in Sugar Industry
2774 and Sealpak® 46
2235 in Steam Application Case History
A chemical processing facility was experiencing steam leakage on a sulphonator vessel after only a couple of weeks of run-time leading to reduced efficiency in the process and longer required run times.
Teadit 24SH in Chemical Processing
A chemical processing facility was experiencing leaks on FRP flange connections due to damage to the flanges caused by the use of gaskets that were not suitable for the requirements of low strength flanges, like FRP.
Teadit Camprofile Gasket in Chemical Processing
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.