What is fkm seal material

However, despite its limitations, for the toughest applications involving extremes of pressure, temperature and caustic chemicals, PTFE material offers the ultimate solution. Cost: FKM rubber is a premium product, due to its chemical makeup and subsequent chemical resistance. Cheaper elastomer options could be applicable if chemical and temperature resistance is not a concern.

Again, if your application involves anything less than the most extreme temperatures, pressures and aggressive chemicals, then a cheaper alternative might be preferable. For optimum sealing properties PTFE is bonded to an elastomer core to provide resistance to compression. Both of these materials offer exceptional properties, which explains the expense of producing them.

However, you should bear in mind that for extreme applications both offer exceptional characteristics. You get what you pay for in these situations and often cheaper alternatives will fail sooner, which is ultimately a false economy.

Both of these materials are suitable for general purpose applications. They offer excellent compression set resistance, and both are designed to resist most oils and lubricants, especially petroleum-based lubricants. However, for more specific applications, the decision on material becomes much more important. In addition to temperature, other application conditions differentiate these two compounds.

For most circumstances, however, this may not be an issue. NBR also offers the benefit of superior abrasion and tear resistance making them better suited for more heavy duty industrial applications. Discover the thermal properties of FKM. This can lead to problems when ordering the correct material.

Hopefully this article will clear any further confusion. You may see this rubber listed in different places with these different names, but they are all one and the same.

Originally developed by Du Pont, it is produced by a number of companies around the world. The material FKM is the preferred choice for standard articles such as O-rings. The red material FKM is available for formed parts that are used in systems with less aggressive cleaning processes. In general industry, FKM is used wherever there are high rotational speeds and high temperatures, for example, in radial shaft seal rings in pumps and transmissions.

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