{"id":313,"date":"2023-09-27T14:38:45","date_gmt":"2023-09-27T14:38:45","guid":{"rendered":"https:\/\/www.marcorubber.com\/blog\/?p=313"},"modified":"2025-03-19T11:22:06","modified_gmt":"2025-03-19T11:22:06","slug":"ten-benefits-of-using-ffkm-o-rings","status":"publish","type":"post","link":"https:\/\/www.marcorubber.com\/blog\/?p=313","title":{"rendered":"Ten Benefits of Using FFKM O-Rings"},"content":{"rendered":"

Perfluoroelastomer (<\/span>FFKM<\/span>) is a versatile material with a wide range of formulas for just about every application. If you have spent any time looking into sealing solutions, you have most likely heard of FFKM as the superior option in most situations. But why?<\/span><\/p>\n

Is FFKM everything it is made out to be? What are the benefits of using FFKM o-rings<\/a> in your seals?<\/span><\/p>\n

Extremely Temperature Resistant<\/span><\/h2>\n

One of the primary benefits of using FFKM for o-rings is its extreme temperature resistance. FFKM formulations can withstand operating temperatures as low as approximately -49\u00b0F (-45\u00b0C) and as high as 635\u00b0F (335\u00b0C).<\/span><\/p>\n

Nearly Universal Chemical Resistance<\/span><\/h2>\n

FFKM offers the best chemical resistance on the market, in terms of the number of chemicals and compatibility<\/a> with them. FFKM is resistant to over 1,800 chemicals, solvents, and plasmas.\u00a0<\/span><\/p>\n

Excellent Gas and Liquid Permeation Resistance<\/span><\/h2>\n

Permeation occurs when a liquid or gas gets into a material\u2019s pores and causes cracks, leading to seal failures and leaks. FFKM stands up exceedingly well to permeation.\u00a0<\/span><\/p>\n

Excellent Weather Ability and Ozone Resistance<\/span><\/h2>\n

When designing a seal for use outdoors, additional elements come into play, such as weather and ozone exposure. When a seal experiences the fluctuations in temperature, humidity, and other elements brought on by being outdoors, they can quickly degrade, resulting in failure and leaks. Thus, using a material like FFKM that readily withstands weathering and ozone exposure is pivotal to sealing success.<\/span><\/p>\n

Non-Flammable in Air<\/span><\/h2>\n

Some alternatives to FFKM materials can be flammable, which, of course, creates a risk to the application, environment, and personnel. FFKM is both self-extinguishing and non-flammable.\u00a0<\/span><\/p>\n

Low Outgassing Properties\u00a0<\/span><\/h2>\n

Outgassing (or offgassing)<\/span><\/a> refers to when a polymer puts off vapors, usually under high temperatures<\/a> or low pressures. In high sensitivity applications in harsh environments, such as <\/span>pharmaceuticals<\/span><\/a>, <\/span>semiconductor manufacturing<\/span><\/a>, or vacuum environments, like <\/span>outer space<\/span>, outgassing is of particular concern. The extractables put off during outgassing can damage sensors or harm sterility.\u00a0<\/span><\/p>\n

FFKM has low extractables, meaning it has low outgassing properties, and is a safer choice for these applications.<\/span><\/p>\n

Good Mechanical Properties<\/span><\/h2>\n

FFKM o-rings offer excellent compression set and sealing performance thanks to FFKM\u2019s mechanical properties.\u00a0<\/span><\/p>\n

Suitable for Explosive Decompression<\/span><\/h2>\n

Explosive decompression is a rapid, violent depressurization, forcing gas into the polymer. If the pressure is not released properly, it can cause the polymer to rupture. This, in turn, leads to seal failure, leaks, expensive messes, costly clean-up, and, of course, downtime.<\/span><\/p>\n

For a seal to survive explosive decompression, you need to use a material like FFKM that is suitable for the rapid pressure change and forthcoming pressurized gas.<\/span><\/p>\n

Easily Customizable Shapes<\/span><\/h2>\n

FFKM\u2019s mechanical properties not only improve seal quality and performance, but also make it easier to customize into a number of shapes, including but not limited to o-rings, gaskets, and tri-clamps. Along with the shapes, FFKM can be formed into custom sizes with relative ease.<\/span><\/p>\n

Available in Ultra Clean Formulas<\/span><\/h2>\n

For high sterility environments such as pharmaceutical, medical device manufacturing, and semiconductors, having a low off-gassing and non-shedding o-ring is critical. Moreover, using o-rings manufactured, cleaned, and packaged in a cleanroom is also important. This process guarantees the material is free of particles when it is installed in a facility.\u00a0<\/span><\/p>\n

From certain suppliers, there are FFKM formulas that are not only particle-free and low off-gassing, but manufactured, packaged, and cleaned in cleanrooms for ultimately sterility.\u00a0<\/span><\/p>\n

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The Right FFKM Formula For You<\/span><\/h2>\n

There are several FFKM formulas available, but is there a right one for you? Well, it really depends on your application and needs. We would recommend working with a sealing expert to determine the right FFKM formula to help you make the most of your seal.<\/span><\/p>\n

For example, a medical laser equipment manufacturing company approached us looking for a material that could:<\/span><\/p>\n