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.
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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.
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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.