{"product_id":"nitrile-butadiene-rubber-nbr","title":"Nitrile Butadiene Rubber (NBR)","description":"\u003ch2\u003eNBR (Nitrile) Rubber: Superior Oil \u0026amp; Fuel Resistance Elastomer\u003c\/h2\u003e\u003cp\u003eNitrile Butadiene Rubber (NBR), commonly known as Nitrile or Buna-N, is a synthetic elastomer engineered for exceptional resistance to petroleum-based oils, fuels, and hydraulic fluids. Widely specified across automotive, aerospace, and industrial applications, NBR delivers reliable sealing performance in demanding fluid-contact environments where other elastomers fail.\u003c\/p\u003e\u003ch3\u003eKey Properties of NBR Rubber\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eExceptional Oil \u0026amp; Fuel Resistance:\u003c\/strong\u003e Superior resistance to petroleum oils, gasoline, diesel, hydraulic fluids, and mineral oils\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Temperature Range:\u003c\/strong\u003e Performs from -40°F to 250°F (-40°C to 120°C), with specialty grades extending to 300°F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAbrasion Resistance:\u003c\/strong\u003e Excellent wear resistance for high-friction applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTensile Strength:\u003c\/strong\u003e High mechanical strength and tear resistance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChemical Compatibility:\u003c\/strong\u003e Good resistance to aliphatic hydrocarbons, water, and silicone oils\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompression Set:\u003c\/strong\u003e Good resistance to permanent deformation under compression\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAcrylonitrile Content:\u003c\/strong\u003e Available in low, medium, and high ACN grades for optimized oil resistance vs. low-temperature flexibility\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCommon Applications \u0026amp; Uses\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomotive:\u003c\/strong\u003e Fuel hoses, oil seals, O-rings, gaskets, grommets, CV joint boots\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHydraulic Systems:\u003c\/strong\u003e Seals, O-rings, hoses, diaphragms for hydraulic cylinders and pumps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAerospace:\u003c\/strong\u003e Fuel system seals, O-rings, gaskets for aircraft fuel and hydraulic systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial:\u003c\/strong\u003e Oil-resistant conveyor belts, rollers, printing blankets, adhesives\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOil \u0026amp; Gas:\u003c\/strong\u003e Downhole seals, wellhead equipment, pipeline gaskets\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarine:\u003c\/strong\u003e Fuel system components, engine seals, oil-resistant hoses\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturing:\u003c\/strong\u003e Machine seals, hydraulic equipment, oil-handling components\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eAdvantages of NBR\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eIndustry-leading oil and fuel resistance—the standard for petroleum-contact applications\u003c\/li\u003e\n\u003cli\u003eExcellent abrasion and wear resistance for high-friction environments\u003c\/li\u003e\n\u003cli\u003eHigh tensile strength and tear resistance for mechanical durability\u003c\/li\u003e\n\u003cli\u003eGood compression set resistance for long-term sealing performance\u003c\/li\u003e\n\u003cli\u003eCost-effective compared to specialty fluoroelastomers (FKM\/Viton)\u003c\/li\u003e\n\u003cli\u003eWide range of hardness and ACN content for application-specific optimization\u003c\/li\u003e\n\u003cli\u003eResistant to hydraulic fluids (petroleum-based and water-glycol types)\u003c\/li\u003e\n\u003cli\u003eGood low-temperature flexibility in low-ACN formulations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLimitations \u0026amp; Disadvantages\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoor Weather Resistance:\u003c\/strong\u003e Limited UV, ozone, and outdoor aging resistance—not suitable for prolonged outdoor exposure\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAromatic Hydrocarbon Sensitivity:\u003c\/strong\u003e Poor resistance to benzene, toluene, and aromatic fuels\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePolar Solvent Incompatibility:\u003c\/strong\u003e Swells in ketones, esters, and chlorinated solvents\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Limitations:\u003c\/strong\u003e Lower maximum temperature than fluoroelastomers or silicone\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eACN Trade-off:\u003c\/strong\u003e Higher oil resistance (high ACN) reduces low-temperature flexibility\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlame Resistance:\u003c\/strong\u003e Not self-extinguishing—inferior to neoprene or specialty compounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eNBR vs. Other Rubber Materials\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eNBR vs. EPDM:\u003c\/strong\u003e NBR excels in oil and fuel resistance, while EPDM is superior for weather, water, and steam applications. Use NBR for petroleum systems; use EPDM for outdoor sealing and water contact.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNBR vs. Neoprene:\u003c\/strong\u003e NBR offers superior oil and fuel resistance, while neoprene provides better weather resistance and flame retardancy. NBR is the choice for dedicated oil\/fuel contact; neoprene for multi-exposure outdoor applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNBR vs. Fluoroelastomers (FKM\/Viton):\u003c\/strong\u003e FKM offers broader chemical resistance and higher temperature capability (up to 400°F), but NBR is more cost-effective and provides better low-temperature flexibility for standard petroleum applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNBR vs. Silicone:\u003c\/strong\u003e Silicone offers wider temperature range (-65°F to 450°F) and better weather resistance, but NBR significantly outperforms it in oil and fuel resistance. NBR is preferred for hydraulic and fuel systems.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNBR vs. SBR:\u003c\/strong\u003e NBR provides superior oil resistance, while SBR offers better abrasion resistance and lower cost for dry applications. NBR is essential for oil contact; SBR for non-petroleum, high-wear environments.\u003c\/p\u003e\u003ch3\u003eNBR Grades by Acrylonitrile (ACN) Content\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow ACN (18–25%):\u003c\/strong\u003e Better low-temperature flexibility, lower oil resistance—ideal for cold environments with moderate oil contact\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedium ACN (26–35%):\u003c\/strong\u003e Balanced oil resistance and flexibility—most common general-purpose grade\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh ACN (36–50%):\u003c\/strong\u003e Maximum oil and fuel resistance, reduced low-temperature flexibility—specified for severe petroleum exposure\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardness Range:\u003c\/strong\u003e 40–95 Shore A (customizable by formulation)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecific Gravity:\u003c\/strong\u003e 0.98–1.00\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTensile Strength:\u003c\/strong\u003e 500–4,000 psi (varies by grade and ACN content)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElongation at Break:\u003c\/strong\u003e 200–600% (varies by formulation)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompression Set:\u003c\/strong\u003e Good to excellent (improved with peroxide curing)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhy Choose NBR from Rubber Mexico?\u003c\/h3\u003e\u003cp\u003eOur NBR compounds are formulated for consistent oil resistance, mechanical performance, and sealing reliability across automotive, aerospace, hydraulic, and industrial applications. With in-house molding, extrusion, and custom compounding capabilities, we deliver precision-engineered NBR components tailored to your ACN requirements and operating conditions.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNeed a custom NBR formulation?\u003c\/strong\u003e Contact us for material selection guidance, ACN optimization, compound development, prototyping, and production support.\u003c\/p\u003e","brand":"Rubber Mexico","offers":[{"title":"Default Title","offer_id":51662846558487,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/9395\/9447\/files\/O-Rings_5b.png?v=1764453548","url":"https:\/\/rubber-mexico.com\/es-mx\/products\/nitrile-butadiene-rubber-nbr","provider":"Rubber Mexico","version":"1.0","type":"link"}