Viton™ O-Rings

Unmatched Performance and Durability with NES Viton™ and FFKM O-Rings 

If you are looking for an O-ring solution that can withstand extreme temperatures and resist corrosive fluids, Viton™ O-rings are the ideal choice.  Also known as FKM O-rings, these high-performance O-rings are widely used in specialised applications across a range of industries, from aerospace and automotive to mechanical devices and garden hoses. 

What are Viton™ O-Rings? 

Viton™ O-rings are a type of fluorocarbon O-ring that can operate in temperature ranges from -40°C up to 250°C or higher.  They have excellent chemical resistance, low gas permeability, and superior mechanical properties.  These characteristics make them an ideal choice for use in engines and other applications where temperature extremes and chemicals exist.  Viton™ O-rings have low compression set, which means they can maintain their original shape after being compressed, ensuring long-term sealing performance. 

Applications of Viton™ O-Rings 

Viton™ O-rings are widely used in a range of specialised applications.  They are used in aircraft and aerospace systems, automotive engines and transmissions, chemical processing plants, and semiconductor wafer fabrication.  These O-rings are also used in garden hoses and other mechanical devices, where they can provide reliable sealing under a range of environmental conditions. 

What are FFKM O-Rings?

FFKM O-rings, or perfluoroelastomer O-rings, are a class of elastomers that exhibit the highest chemical resistance among all elastomers.  These O-rings are used in highly aggressive chemical processing, pharmaceutical applications, and oil and gas recovery, where nothing else can quite meet the rigorous standards required by the operation.  The brand names of these O-rings include Kalarez, Chemraz, and Tecnoflon. 

Difference Between Viton™ and FFKM O-Rings 

While both Viton™ and FFKM O-rings offer excellent chemical resistance and high-temperature performance, FFKM O-rings are typically used in more aggressive chemical environments.  Viton™ O-rings, on the other hand, are widely used in a range of applications where a resistance to corrosive fluids and elevated temperatures is necessary.   

Astra Seal®: The Superior Choice for Compression Set Resistance 

If you are looking for an O-ring that offers superior compression set resistance, you may want to consider Astra Seal®.  This innovative sealing solution has been rigorously tested and shown to outperform FFKM O-rings in terms of compression set resistance.  Speak to our team today to learn more about Astra Seal® and how it can help you achieve better sealing performance in your application. 

Which O-Ring Do You Need? 

If you are unsure which O-ring is suitable for your needs, it’s best to seek advice from the experts.  With our decades of experience in the industry, our mechanical engineering team are on hand to offer advice and support in your choice.  For more information, contact the NES team today. 


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