HNBR (Hydrogenated Nitrile) Selection Guide
HNBR O-rings, gaskets, & custom molded parts are formed by subjecting Nitrile rubber to a hydrogenation process. The resulting compound demonstrates increased temperature resistance and better compatibility with many fuels and chemicals. Hydrogenated Nitrile O-rings, gaskets, & custom molded parts also offer higher strength and reduced degradation at high temperatures compared to conventional Nitrile O-rings, gaskets, & custom molded parts. These properties make HNBR O-rings, gaskets, & custom molded parts popular in the oil and gas industry, as well as many applications in the chemical industry. Specific physical and chemical resistances vary by compound formulation.
Common names include: HNBR (Hydrogenated acrylonitrile butadiene rubber), Hydrogenated Nitrile Trade Names: Therban®, Zetpol®
Features of HNBR
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HNBR O-rings, gaskets, & custom molded parts have a relative low cost
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HNBR O-rings, gaskets, & custom molded parts have enhanced chemical compatibility with many fuels
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HNBR O-rings, gaskets, & custom molded parts have increased resistance to ozone and weathering
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HNBR O-rings, gaskets, & custom molded parts have excellent resistance to compression set and tear/abrasion.
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HNBR O-rings, gaskets, & custom molded parts have excellent resistance to many fuels and aliphatic hydrocarbons (propane, butane, diesel fuel, fuel oils) as well as ethylene-glycol based fluids
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HNBR O-rings, gaskets, & custom molded parts are compatible with HFA, HFB and HFC fluids
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HNBR O-rings, gaskets, & custom molded parts are available in multiple compounds to meet performance and cost requirements
Limitations of HNBR
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HNBR O-rings, gaskets, & custom molded parts have poor resistance to polar solvents, aromatic/chlorinated hydrocarbons, and strong acids
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HNBR O-rings, gaskets, & custom molded parts have a Service Temperature Range of (varies with application): -40°F to 300° F (-40°C to 150°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.
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.