While they may be called PTFE O-rings, Teflon O-rings, or PTFE Teflon O-rings, they are all the same material. PTFE refers to the chemical name for the material, whereas Teflon is a registered trademark name for the same polymer.

The material also has beneficial electrical characteristics in the form of dielectric strength and electrical resistance. Finally, PTFE O-rings are non-toxic and may be sterilized, which is a benefit for pharmaceutical and medical device applications.

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At Wyatt Seal, we offer a wide range of material options for O-rings and want to make it easy for you to quickly find the right sealing solution for your needs.

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PTFE is resistant to most corrosive elements and chemical agents, including acids, bases, solvents, oils, alkalis, and oxidants. While PTFE is highly resistant to corrosion, it is not a good choice when chemical resistance is needed to liquify alkali metals, fluorine compounds or fluorine gas, or extremely potent oxidizers.

As a material, PTFE has outstanding resistance to heat and cold and can be used in temperatures as low as - 425ºF or as high as 450ºF. This makes PTFE O-rings a good selection for cryogenic or heating applications.

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PTFE Teflon O-rings are ring-shaped seals made from the chemical polymer polytetrafluoroethylene, or PTFE for short. PTFE O-rings work like any O-ring to seal two or more parts at the interface.

Resistance to corrosive environments makes PTFE a preferred selection when the O-ring may not be in continual use. PTFE O-rings do not degrade over time in the same way that some elastomers might. Ultraviolet rays also do not degrade PTFE O-rings as they might O-rings made from other materials.

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Common uses for these O-rings include mill, crushing, or grinding applications, as well as stirring and agitator processes. PTFE O-rings also are frequently used in pumps, centrifuges, and blower systems. Engineering solutions involving transmissions, gearboxes, and air compressors also use PTFE O-rings.

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We are here to help in selecting the right sealing solution. Let us make finding the O-rings for your next project fast, easy, and stress-free. Contact Wyatt Seal to find out more about our O-ring selection and our custom solutions.

Many industries use PTFE O-rings because of their unique properties. These include chemical, semiconductor, pharmaceutical, aerospace/automotive manufacturing, medical devices, and other industries. PTFE O-rings perform well in low- to medium-pressure applications.

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In addition to its resistance to corrosion, high heat, and extreme cold, PTFE has a number of other useful properties. PTFE O-rings do not stick, burn, or absorb moisture. This means that the O-ring will not swell when exposed to water.

PTFE O-rings generate very little friction and are resistant to tears and abrasions. The low-friction quality makes PTFE O-rings appealing for use in hoses and pipes. The self-lubricated surface also makes the material a good choice for seals in moving systems.

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PTFE is an extremely versatile, high molecular-weight polymer. This nonreactive material has several beneficial properties, including its resistance to chemical corrosion and its ability to withstand a wide temperature range. Because of its specific properties, PTFE has many potential applications across a range of industries.

When purchasing PTFE O-rings, it’s important to select the right size because they will not easily stretch or conform as much as other materials. PTFE O-rings are difficult to remove once installed, so a proper fit is essential. At Wyatt Seal, we have PTFE Teflon O-rings in stock in our 4 warehouse locations.

Please consult the size chart so that you can order confidently, knowing you will receive a sealing solution that will arrive on time, perform well, and last.

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