PTFE, or Polytetrafluoroethylene, is a synthetic fluoropolymer of tetrafluoroethylene. It is known for its non-stick and heat-resistant properties. PTFE seals are commonly used in a variety of industrial applications because of their ability to resist chemical attacks and maintain a good seal in harsh environments.
Gaskets – Sheet – Parts – Seals
PTFE Sheet Gasket Material Virgin, Mechanical and Expanded PTFE grades The perfect material for Food (FDA) applications. Chemical Compatibility 0-14 PH Good for Temperatures to 450F
EPTFE Sheet Gasket Material (Expanded PTFE) Virgin
The perfect material for Food (FDA) applications. Chemical Compatibility 0-14 PH Good for Temperatures to 600F
Durlon is the result of years of experience in producing PTFE materials. It is designed for a wide range of demanding industrial requirements including gasket and bearing applications. Durlon 9000 is filled PTFE, uniquely combining the properties of PTFE and filler materials. Fillers enhances the physical properties of PTFE and result in a superior gasket material. Durlon shows less cold flow and greater sealing ability than other filled PTFE materials (PTFE) or Fluorocarbons. It maintains the chemical attack resistance and the temperature range of PTFE.
Durlon 9000 = Gylon 3504
Durlon 9200 = Gylon 3510
Amerilon ® PTFE = Gylon Chemrex 3570
* This is to be used as a general guide only. All applications should be considered individually
Machined or molded PTFE parts
From Virgin or Mechanical Grade for v-packings, mechanical seal wedges or a 1000 other applications. We can make parts made from samples or prints.
PTFE sheet, rod and bar are kept in stock for immediate shipment
Joint SealantIdeal for all large equipment flanges. Eliminates retorting, easy to remove, No pre cutting required, Low stress required to seal, Self adhesive backing makes it easy to install.
Valve stem packingSoft Expanded PTFE, Easy To Install, Chemically Inert, Will Not Age, FDA Suitable, Adds Service Life To Old Worn Valves By Conforming To Pitted Or Worn Surfaces. Also Available In The Original Virgin PTFE Resin Version.
Insertable Gaskets made from PTFESeal Troublesome, Corroded, Pitted & Steam-Drawn Flanges With These Preformed Gaskets. 100% P.T.F.E. Preformed Gaskets Easily Drop Into Your Flange And Seal It. They Are Just As Easy To Remove After Use. Made To Fit Standard Ansi 150, 300, 400 And 600 Lb. Flanges In 1/2 Through 12″ Sizes
Gaskets made from EPTFE (expanded PTFE) or Quality PTFE
Expanded PTFE or PTFE Gaskets cut from possess all of the great aspects of PTFE like chemical compatibility and a 450-500F temperature range, but PTFE gaskets require enough torque to seal. If that torque is not possible, or if flange faces are worn or pitted, Expanded PTFE, gaskets are the answer.
When you need an FDA grade pump or valve packing the solution is usually PTFE. With chemical compatibility and a 450-500F temperature range, PTFE is a very versatile packing. Round valve packing is made from Expanded PTFE (see above).
When you need an FDA-grade o-ring the solution is usually PTFE. With chemical compatibility and a 450-500F temperature range, PTFE is a very versatile packing. Available in Imperial, Metric, and Japanese sizes.
Injectable PTFE Packing
If you would like to be able to repack a pump or valve while it’s running, injectable packing is your solution. FDA grade, it’s white and clean. With chemical compatibility and a 450-500F temperature range, PTFE is a very versatile packing.
We Provide Virgin And Filled PTFE Rod, Tube And Bar Stock. Both In Molded And Extruded Versions.At American Seal & Packing We Extrude A Large Range Of Standard Size PTFE Rod From 3/32″ Diameter To 5″ Diameter. We Also Have The Capability To Centerless Grind Intermediate Sizes Up To 2″ Diameter. Many Of Our Sizes Can Be Supplied In Virgin PTFE Or With Fills Of Glass, Bronze, Brass, Carbon, Graphite, Moly And A Large Range Of Colors.
Is all PTFE the same?
The most common PTFE resin came from Dupont in 1945. Today the name Teflon is owned by The Chemours Company. Chemours™ and the Chemours Logo are trademarks or registered trademarks of The Chemours Company. Teflon™ is a trademark of The Chemours Company FC, LLC. Access and use of the Teflon™ brand require a trademark license from Chemours. There are now multiple competing PTFE products from Germany, Japan, India, and China, but are they true equals? To the naked eye, they will all look similar enough, but if you operate a laser to cut materials as we do, it does not take long to realize that not all PTFE materials are the same. To cut the identical part it may take more or less wattage/speed/frequency to get similar results. Clearly, some PTFE is made with inferior fillers. If you want the best, it’s always best to specify Teflon™.
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