{"id":4203,"date":"2026-01-09T10:59:46","date_gmt":"2026-01-09T09:59:46","guid":{"rendered":"https:\/\/reontech.cz\/nbr-rubber-a-reliable-material-for-contact-with-oils\/"},"modified":"2026-01-12T13:04:02","modified_gmt":"2026-01-12T12:04:02","slug":"nbr-rubber-a-reliable-material-for-contact-with-oils","status":"publish","type":"post","link":"https:\/\/reontech.cz\/en\/nbr-rubber-a-reliable-material-for-contact-with-oils\/","title":{"rendered":"NBR Rubber &#8211; A Reliable Material for Contact with Oils"},"content":{"rendered":"\n<p>NBR (Nitrile Butadiene Rubber) is one of the most widely used synthetic rubbers in the industry. Thanks to its excellent resistance to oils, fuels, and lubricants, it has long been a proven material for the production of seals and technical rubber parts, especially in hydraulics, pneumatics, the automotive industry, and wherever there is contact with petroleum products. <\/p>\n\n<h2 class=\"wp-block-heading\">What is NBR Rubber?<\/h2>\n\n<p>NBR is a copolymer of butadiene and acrylonitrile. The acrylonitrile (ACN) content has a fundamental influence on the oil resistance of the material \u2013 the higher its proportion, the better the resistance to oils and fuels. However, this property is at the expense of flexibility at low temperatures, which is one of the limitations of this material. For this reason, there are a number of NBR compounds adapted to specific applications, which differ in the proportion of ACN content.   <\/p>\n\n<h3 class=\"wp-block-heading\">Key Properties of NBR<\/h3>\n\n<p>The main advantages of NBR rubber include:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>High resistance to mineral oils, fats, fuels, and petroleum products in general<\/li>\n\n\n\n<li>Good mechanical strength and abrasion resistance<\/li>\n\n\n\n<li>Good dimensional stability and long service life<\/li>\n\n\n\n<li>Favorable ratio of price and utility properties<\/li>\n<\/ul>\n\n<p>On the other hand, the weaker side of NBR is limited resistance to ozone, UV radiation, and weathering, and loss of flexibility at low temperatures. For outdoor applications or environments with higher temperatures, other types of rubber, such as EPDM or FKM, are more suitable. <\/p>\n\n<h3 class=\"wp-block-heading\">Temperature and Chemical Resistance<\/h3>\n\n<p>Standard NBR is commonly used in the temperature range of approximately -30 \u00b0C to +100 \u00b0C. Special compounds allow use down to -40 \u00b0C or briefly up to +120 \u00b0C. <\/p>\n\n<p>In terms of chemical resistance, NBR is an ideal choice for:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>Hydraulic and engine oils<\/li>\n\n\n\n<li>Lubricants<\/li>\n\n\n\n<li>Diesel, gasoline, fuels<\/li>\n<\/ul>\n\n<p>Conversely, it is not suitable for:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>Strong acids and oxidizing agents<\/li>\n\n\n\n<li>Ozone and UV radiation<\/li>\n\n\n\n<li>Glycol-based brake fluids<\/li>\n<\/ul>\n\n<h3 class=\"wp-block-heading\">Typical Uses of NBR in Industry<\/h3>\n\n<p>Due to its properties, NBR rubber is used in a wide range of applications, including:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>O-rings and flat seals &#8211; flanges, lid seals, and other static applications <\/li>\n\n\n\n<li>Sealing elements for hydraulics &#8211; piston seals, rod seals, wipers, and more<\/li>\n\n\n\n<li>Shaft seals <\/li>\n\n\n\n<li>Hoses for oils and fuels<\/li>\n\n\n\n<li>Membranes and technical rubber parts<\/li>\n<\/ul>\n\n<p>NBR is often the first choice wherever contact with oils is a key factor and emphasis is placed on reliability and economic efficiency of the solution.<\/p>\n\n<h3 class=\"wp-block-heading\">Summary<\/h3>\n\n<p>NBR rubber is a versatile and proven material for oil applications. It offers very good mechanical properties, high chemical resistance to oils and fuels, and a favorable price. With proper design and consideration of operating conditions, NBR is a reliable long-term solution for a wide range of industrial uses.  <\/p>\n\n<h3 class=\"wp-block-heading\">Looking for the Right NBR Solution?<\/h3>\n\n<p>Do you need <strong>seals, O-rings, or CNC machined parts<\/strong> for oil applications? We can help you choose the right NBR compound and manufacture it exactly according to your drawing or sample. <\/p>\n\n<p>We keep the material in stock in rolls (most often 1400 mm wide). However, we can also supply piece quantities or cut-to-size of any dimension, and we also have our own flat seal production. NBR rubber is also often used for CNC production of seals for hydraulics and pneumatics. Sealing elements made of NBR can be used up to an operating pressure of 160 bar, or even more depending on the selected profile.   <\/p>\n\n<div class=\"wp-block-media-text is-stacked-on-mobile has-medium-font-size\" style=\"border-width:3px;border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-left-radius:0px;border-bottom-right-radius:0px\"><figure class=\"wp-block-media-text__media\"><a href=\"https:\/\/reontech.cz\/en\/products\/rubbers\/\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"650\" src=\"https:\/\/reontech.cz\/wp-content\/uploads\/2025\/06\/Pryze-prirezy-ob-1024x650.webp\" alt=\"\" class=\"wp-image-1787 size-full\" srcset=\"https:\/\/reontech.cz\/wp-content\/uploads\/2025\/06\/Pryze-prirezy-ob-1024x650.webp 1024w, https:\/\/reontech.cz\/wp-content\/uploads\/2025\/06\/Pryze-prirezy-ob-300x190.webp 300w, https:\/\/reontech.cz\/wp-content\/uploads\/2025\/06\/Pryze-prirezy-ob-768x487.webp 768w, https:\/\/reontech.cz\/wp-content\/uploads\/2025\/06\/Pryze-prirezy-ob.webp 1067w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure><div class=\"wp-block-media-text__content\">\n<h3 class=\"wp-block-heading\"><a href=\"https:\/\/reontech.cz\/en\/products\/rubbers\/\" data-type=\"link\" data-id=\"https:\/\/reontech.cz\/produkty\/pryze\">Material in Rolls, Cut-to-Size<\/a><\/h3>\n\n\n\n<p class=\"has-medium-font-size\">We offer NBR rubber in rolls of 1400 mm width as well as precise cut-to-size pieces according to your requirements. <\/p>\n<\/div><\/div>\n\n<div class=\"wp-block-media-text is-stacked-on-mobile has-medium-font-size\" style=\"border-width:3px;border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-left-radius:0px;border-bottom-right-radius:0px\"><figure class=\"wp-block-media-text__media\"><a href=\"https:\/\/reontech.cz\/en\/products\/flat-gasket\/\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/reontech.cz\/wp-content\/uploads\/2025\/11\/IMG_3537-1-1-1024x576.jpg\" alt=\"Ploch\u00e9 t\u011bsn\u011bn\u00ed\" class=\"wp-image-2938 size-full\" srcset=\"https:\/\/reontech.cz\/wp-content\/uploads\/2025\/11\/IMG_3537-1-1-1024x576.jpg 1024w, https:\/\/reontech.cz\/wp-content\/uploads\/2025\/11\/IMG_3537-1-1-300x169.jpg 300w, https:\/\/reontech.cz\/wp-content\/uploads\/2025\/11\/IMG_3537-1-1-768x432.jpg 768w, https:\/\/reontech.cz\/wp-content\/uploads\/2025\/11\/IMG_3537-1-1-1536x864.jpg 1536w, https:\/\/reontech.cz\/wp-content\/uploads\/2025\/11\/IMG_3537-1-1.jpg 1842w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure><div class=\"wp-block-media-text__content\">\n<h3 class=\"wp-block-heading\"><a href=\"https:\/\/reontech.cz\/en\/products\/flat-gasket\/\" data-type=\"link\" data-id=\"https:\/\/reontech.cz\/produkty\/pryze\">Flat gasket seals<\/a><\/h3>\n\n\n\n<p class=\"has-medium-font-size\">We produce flat seals and shaped cutouts from NBR rubber on CNC machines<\/p>\n<\/div><\/div>\n\n<div class=\"wp-block-media-text is-stacked-on-mobile has-medium-font-size\" style=\"border-width:3px;border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-left-radius:0px;border-bottom-right-radius:0px\"><figure class=\"wp-block-media-text__media\"><a href=\"https:\/\/reontech.cz\/en\/products\/seals-for-hydraulics-and-pneumatics\/\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"650\" src=\"https:\/\/reontech.cz\/wp-content\/uploads\/2025\/09\/Soustruzeni-blog-1024x650.webp\" alt=\"\" class=\"wp-image-2225 size-full\" srcset=\"https:\/\/reontech.cz\/wp-content\/uploads\/2025\/09\/Soustruzeni-blog-1024x650.webp 1024w, https:\/\/reontech.cz\/wp-content\/uploads\/2025\/09\/Soustruzeni-blog-300x190.webp 300w, https:\/\/reontech.cz\/wp-content\/uploads\/2025\/09\/Soustruzeni-blog-768x487.webp 768w, https:\/\/reontech.cz\/wp-content\/uploads\/2025\/09\/Soustruzeni-blog.webp 1067w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure><div class=\"wp-block-media-text__content\">\n<h3 class=\"wp-block-heading\"><a href=\"https:\/\/reontech.cz\/en\/products\/seals-for-hydraulics-and-pneumatics\/\" data-type=\"page\" data-id=\"42\">CNC Seal Production<\/a><\/h3>\n\n\n\n<p class=\"has-medium-font-size\">We manufacture sealing elements from NBR rubber not only for hydraulics and pneumatics. <\/p>\n<\/div><\/div>\n\n<p>\ud83d\udc49 <strong>Contact us with your inquiry and we will design a reliable solution tailored to your application.<\/strong><\/p>\n\n<div class=\"wp-block-group\"\/>\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>NBR (Nitrile Butadiene Rubber) is one of the most widely used synthetic rubbers in the industry. Thanks to its excellent resistance to oils, fuels, and lubricants, it has long been a proven material for the production of seals and technical rubber parts, especially in hydraulics, pneumatics, the automotive industry, and wherever there is contact with [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":4181,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[169],"tags":[175],"class_list":["post-4203","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-rubber","tag-materials"],"acf":[],"_links":{"self":[{"href":"https:\/\/reontech.cz\/en\/wp-json\/wp\/v2\/posts\/4203","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/reontech.cz\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/reontech.cz\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/reontech.cz\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/reontech.cz\/en\/wp-json\/wp\/v2\/comments?post=4203"}],"version-history":[{"count":7,"href":"https:\/\/reontech.cz\/en\/wp-json\/wp\/v2\/posts\/4203\/revisions"}],"predecessor-version":[{"id":4210,"href":"https:\/\/reontech.cz\/en\/wp-json\/wp\/v2\/posts\/4203\/revisions\/4210"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/reontech.cz\/en\/wp-json\/wp\/v2\/media\/4181"}],"wp:attachment":[{"href":"https:\/\/reontech.cz\/en\/wp-json\/wp\/v2\/media?parent=4203"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/reontech.cz\/en\/wp-json\/wp\/v2\/categories?post=4203"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/reontech.cz\/en\/wp-json\/wp\/v2\/tags?post=4203"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}