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Key:    1 = Excellent    2 = Good    3 = Poor    4 = Not Recommended

FKM (Viton®, Fluorocarbon)

Selection Guide

Fluorocarbons are available in a wide range of elastomers, O-rings, gaskets, & custom molded parts, where the fluorine content greatly affects the physical and chemical properties of the material. In general, FKM compounds, O-rings, gaskets, & custom molded parts exhibit excellent mechanical attributes as well as excellent resistance to high temperatures, mineral oil, ozone, fuels, hydraulic fluids, and many other solvents and chemicals. FKM polymers, O-rings, gaskets, & custom molded parts are widely used in chemical, automotive, aerospace and industrial applications. The properties of Fluorocarbon compounds, O-rings, gaskets, & custom molded parts differ significantly based on their composition. Often increased fluid resistance for FKM O-rings, gaskets, & custom molded parts comes at the cost of a slight decrease in compression set or low temperature resistance.

 

The engineers and consultants here at TKF Tech take pride in finding the perfect seal to suit our customer’s needs. Contact our expert staff for assistance with any seal or application questions!

 

Common names include: FKM (Fluorocarbon), Fluoropolymer. Trade Names: Viton®, Fluorel®, Technoflon®, Dai-El®.

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TKF Tech is a proud partner of Canyon Components, LLC and can provide Canyon Components materials, O-rings, and custom parts. Click here to see what Canyon has to offer.

Optimize Sealing Efficiency with FKM Viton O-Rings - Explore High-Quality Seals Known for Superior Chemical and High-Temperature Resistance. Ensure Durability, Versatility & Leak-Free Performance. Your Trusted Source for FKM Viton O-Rings.

Custom Parts - Any Material

Coatings, Packaging and Services

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Features of FKM (Viton)

  • FKM O-rings, gaskets, & custom molded parts have excellent high temperature resistance

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  • FKM O-rings, gaskets, & custom molded parts have excellent resistance to acids, fuels, mineral and vegetable oils and greases, aliphatic, aromatic and chlorinated hydrocarbons, non-flammable hydraulic fluids (HFD) and many organic solvents and chemicals

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  • FKM O-rings, gaskets, & custom molded parts have low swelling in ASTM oil No. 1, and IRM 902 and IRM 903

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  • FKM O-rings, gaskets, & custom molded parts have excellent resistance to ozone, weather, and aging

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  • FKM O-rings, gaskets, & custom molded parts have low gas permeability

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  • FKM O-rings, gaskets, & custom molded parts have low compression set

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  • FKM O-rings, gaskets, & custom molded parts are available in multiple compounds to meet performance and cost requirements

Limitations of FKM (Viton)

  • FKM O-rings, gaskets, & custom molded parts have poor resistance to superheated steam or hot water 

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  • FKM O-rings, gaskets, & custom molded parts have poor resistance to amines, polar solvents, low molecular weight organic solvents and glycol-based brake fluids  

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  • FKM O-rings, gaskets, & custom molded parts are not compatible with ammonia gas or low molecular weight organic acids 

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  • FKM O-rings, gaskets, & custom molded parts have a Service Temperature Range of (varies with application): Typically 2°F to 400°F (-16°C to 204°C)     *Specialty compounds allow range of -67°F to 432°F (-55°C to 222°C)

Please consult a TKF Tech Engineer about your specific application and we will use our decades of experience to formulate a solution that fits your need.

FKM & Viton® High Performance Polymer Types

TKF Tech is a proud partner of Canyon Components, LLC and can provide Canyon Components materials, O-rings, and custom parts. Click here to see what Canyon has to offer.

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There are many types of FKM Polymer Types that TKF Tech & Canyon Components offers. 

This includes FKM Types A, B, F, GLT, GFLT, XLT, ULT, ETP, & TBR.

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The table below lays out the pluses and minuses of each variation.

Many FKM Compound Variations

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Groove Design References

Coatings, Packaging, & Other Services

Custom Parts & Custom O-rings

  • WRAS, KTW and NSF 51/61 Compliant FKM O-rings, gaskets, & custom molded parts

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  • USP class VI and 3A approved FKM O-rings, gaskets, & custom molded parts

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  • Explosive Decompression Resistant FKM O-rings, gaskets, & custom molded parts

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  • Metal and X-ray detectable FKM O-rings, gaskets, & custom molded parts

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  • PTFE or Parylene Coated in choice color FKM O-rings, gaskets, & custom molded parts

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  • Specific packaging requirements for FKM O-rings, gaskets, & custom molded parts

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  • Special bag and Label requirements for FKM O-rings, gaskets, & custom molded parts

  • Increased steam resistance FKM O-rings, gaskets, & custom molded parts

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  • DuPont Viton® specific FKM O-rings, gaskets, & custom molded parts

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  • Specific and Tight Tolerance FKM O-rings, gaskets, & custom molded parts

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  • Specific AQL Inspection requirement FKM O-rings, gaskets, & custom molded parts

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  • Special tumbling for complete flash removal FKM O-rings, gaskets, & custom molded parts

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  • Variety of colors available for FKM O-rings, gaskets, & custom molded parts

Please consult a TKF Tech Engineer about your specific application and we will use our decades of experience to formulate a solution that fits your need.

  • Internal Lubrication with Silicone oil, Moly and Graphite FKM O-rings, gaskets, & custom molded parts

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  • High purity translucent FKM O-rings, gaskets, & custom molded parts

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  • UL Listed FKM O-rings, gaskets, & custom molded parts

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  • Conductive FKM O-rings, gaskets, & custom molded parts

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  • Surface free of silicone oil FKM O-rings, gaskets, & custom molded parts

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  • Talcum powder on surface to reduce sticking FKM O-rings, gaskets, & custom molded parts

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