{"id":22129,"date":"2026-07-28T15:19:51","date_gmt":"2026-07-28T07:19:51","guid":{"rendered":"https:\/\/nkmceramic.com\/?p=22129"},"modified":"2026-07-28T15:19:51","modified_gmt":"2026-07-28T07:19:51","slug":"sello-mecanico-de-caucho-vs-sic","status":"publish","type":"post","link":"https:\/\/nkmceramic.com\/es\/sello-mecanico-de-caucho-vs-sic\/","title":{"rendered":"Sello mec\u00e1nico de carburo de silicio frente a sello mec\u00e1nico de caucho: \u00bfCu\u00e1l es mejor?"},"content":{"rendered":"<p>Mechanical seals are a set of parts in industrial pumps. They are used to prevent leakage and protect machine internals from damage. Silicon carbide and rubber are 2 popular seal materials. Both of them are widely used in industries needing mechanical seals, fitting different industrial working conditions.<\/p>\n<p>This article mainly focuses on the differences, like characteristics and use cases, between silicon carbide mechanical seals and rubber ones. After reading, you can make a selection by yourself quickly for your own industrial systems.<\/p>\n<figure id=\"attachment_22130\" aria-describedby=\"caption-attachment-22130\" style=\"width: 1280px\" class=\"wp-caption alignnone\"><img decoding=\"async\" data-src=\"https:\/\/nkmceramic.com\/wp-content\/uploads\/2026\/07\/1-Industrial-Gaskets-Sealing-Rings-in-Manufacturing.jpg\" class=\"size-full wp-image-22130 lazyload\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" alt=\"Industrial Gaskets &amp; Sealing Rings in Manufacturing\" width=\"1280\" height=\"720\" \/><figcaption id=\"caption-attachment-22130\" class=\"wp-caption-text\"><noscript><img decoding=\"async\" class=\"size-full wp-image-22130\" src=\"https:\/\/nkmceramic.com\/wp-content\/uploads\/2026\/07\/1-Industrial-Gaskets-Sealing-Rings-in-Manufacturing.jpg\" alt=\"Industrial Gaskets &amp; Sealing Rings in Manufacturing\" width=\"1280\" height=\"720\" srcset=\"https:\/\/nkmceramic.com\/wp-content\/uploads\/2026\/07\/1-Industrial-Gaskets-Sealing-Rings-in-Manufacturing.jpg 1280w, https:\/\/nkmceramic.com\/wp-content\/uploads\/2026\/07\/1-Industrial-Gaskets-Sealing-Rings-in-Manufacturing-768x432.jpg 768w, https:\/\/nkmceramic.com\/wp-content\/uploads\/2026\/07\/1-Industrial-Gaskets-Sealing-Rings-in-Manufacturing-18x10.jpg 18w\" sizes=\"(max-width: 1280px) 100vw, 1280px\" \/><\/noscript> Industrial Gaskets &amp; Sealing Rings in Manufacturing<\/figcaption><\/figure>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/nkmceramic.com\/es\/sello-mecanico-de-caucho-vs-sic\/#Material_Properties_Overview_of_Silicon_Carbide_and_Rubber\" >Material Properties Overview\u00a0of Silicon Carbide and Rubber<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/nkmceramic.com\/es\/sello-mecanico-de-caucho-vs-sic\/#Silicon_Carbide_Ceramic_Seal_Material\" >Silicon Carbide Ceramic Seal Material<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/nkmceramic.com\/es\/sello-mecanico-de-caucho-vs-sic\/#Rubber_Seal_Material\" >Rubber Seal Material<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/nkmceramic.com\/es\/sello-mecanico-de-caucho-vs-sic\/#SiC_vs_Rubber_Mechanical_Seal_Performance_Comparison_in_Industrial_Working_Conditions\" >SiC vs Rubber Mechanical Seal: Performance Comparison in Industrial Working Conditions<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/nkmceramic.com\/es\/sello-mecanico-de-caucho-vs-sic\/#Temperature_Resistance\" >Temperature Resistance<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/nkmceramic.com\/es\/sello-mecanico-de-caucho-vs-sic\/#Wear_and_Abrasion_Resistance\" >Wear and Abrasion Resistance<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/nkmceramic.com\/es\/sello-mecanico-de-caucho-vs-sic\/#Chemical_Corrosion_Resistance\" >Chemical Corrosion Resistance<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/nkmceramic.com\/es\/sello-mecanico-de-caucho-vs-sic\/#Pressure_Bearing_Sealing_Stability\" >Pressure Bearing &amp; Sealing Stability<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/nkmceramic.com\/es\/sello-mecanico-de-caucho-vs-sic\/#Cost\" >Cost<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/nkmceramic.com\/es\/sello-mecanico-de-caucho-vs-sic\/#Applicable_Industries_for_Silicon_Carbide_Rubber_Seal\" >Applicable Industries\u00a0for Silicon Carbide &amp; Rubber Seal<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/nkmceramic.com\/es\/sello-mecanico-de-caucho-vs-sic\/#Ideal_Applications_for_Silicon_Carbide_Mechanical_Seals\" >Ideal Applications for Silicon Carbide Mechanical Seals<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/nkmceramic.com\/es\/sello-mecanico-de-caucho-vs-sic\/#Ideal_Applications_for_Rubber_Mechanical_Seals\" >Ideal Applications for Rubber Mechanical Seals<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/nkmceramic.com\/es\/sello-mecanico-de-caucho-vs-sic\/#FAQs\" >FAQs<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/nkmceramic.com\/es\/sello-mecanico-de-caucho-vs-sic\/#Conclusion\" >Conclusion<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/nkmceramic.com\/es\/sello-mecanico-de-caucho-vs-sic\/#Reference\" >Reference<\/a><\/li><\/ul><\/nav><\/div>\n\n<h2><span class=\"ez-toc-section\" id=\"Material_Properties_Overview_of_Silicon_Carbide_and_Rubber\"><\/span><strong><b>Material Properties Overview<\/b><\/strong><strong><b>\u00a0of Silicon Carbide and Rubber<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Material composition decides the basic performance of mechanical seals. Hardness, chemical stability and heat resistance are 3 biggest differences between silicon carbide and rubber seal solutions.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Silicon_Carbide_Ceramic_Seal_Material\"><\/span><strong><b>Silicon Carbide Ceramic Seal Material<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Silicon carbide, also called SiC, is a high-performance ceramic material. It is tailored for harsh industrial sealing environments with ultra-high hardness and stability. Moreover, this ceramic seal material can maintain stable properties even under extremely high pressure and temperature.<\/p>\n<p><a href=\"https:\/\/nkmceramic.com\/what-is-sic-mechanical-seal\/\"><u>Silicon carbide mechanical seals<\/u><\/a>\u00a0exhibit low friction coefficients and superior wear resistance to resist abrasion from particle-laden fluids, such as slurry and wastewater. Besides, their dense structure also delivers excellent chemical inertness, rarely reacting with acidic, alkaline, or organic industrial fluids.<\/p>\n<p>Seals made of sintered silicon carbide have an enhanced uniform structure. They are more suitable for longer continuous operation.<sup>[3]<\/sup><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Rubber_Seal_Material\"><\/span><strong><b>Rubber Seal Material<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Industrial mechanical rubber seals mainly adopt EPDM, nitrile rubber, and FKM (Viton). These elastic polymer materials place more attention on flexible sealing performance. Their elastic deformation helps to fill any tiny gaps between rotating and stationary parts.<\/p>\n<p>Rubber seal materials offer great flexibility and easy installation, fitting most standard low-load pump equipment. Their soft texture provides tight sealing for clean, low-pressure fluid systems.<sup>[1]<\/sup><\/p>\n<p>However, rubber materials have obvious limitations in hardness and structural stability. Under harsh working conditions, they are more likely to age, swell and deform.<sup>[2]<\/sup><\/p>\n<figure id=\"attachment_22131\" aria-describedby=\"caption-attachment-22131\" style=\"width: 1280px\" class=\"wp-caption alignnone\"><img decoding=\"async\" data-src=\"https:\/\/nkmceramic.com\/wp-content\/uploads\/2026\/07\/2-Numerous-Rubber-Seals-and-Rings-in-Diverse-Sizes-and-Colors.jpg\" class=\"size-full wp-image-22131 lazyload\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" alt=\"Numerous Rubber Seals and Rings in Diverse Sizes and Colors\" width=\"1280\" height=\"720\" \/><figcaption id=\"caption-attachment-22131\" class=\"wp-caption-text\"><noscript><img decoding=\"async\" class=\"size-full wp-image-22131\" src=\"https:\/\/nkmceramic.com\/wp-content\/uploads\/2026\/07\/2-Numerous-Rubber-Seals-and-Rings-in-Diverse-Sizes-and-Colors.jpg\" alt=\"Numerous Rubber Seals and Rings in Diverse Sizes and Colors\" width=\"1280\" height=\"720\" srcset=\"https:\/\/nkmceramic.com\/wp-content\/uploads\/2026\/07\/2-Numerous-Rubber-Seals-and-Rings-in-Diverse-Sizes-and-Colors.jpg 1280w, https:\/\/nkmceramic.com\/wp-content\/uploads\/2026\/07\/2-Numerous-Rubber-Seals-and-Rings-in-Diverse-Sizes-and-Colors-768x432.jpg 768w, https:\/\/nkmceramic.com\/wp-content\/uploads\/2026\/07\/2-Numerous-Rubber-Seals-and-Rings-in-Diverse-Sizes-and-Colors-18x10.jpg 18w\" sizes=\"(max-width: 1280px) 100vw, 1280px\" \/><\/noscript> Numerous Rubber Seals and Rings in Diverse Sizes and Colors<\/figcaption><\/figure>\n<h2><span class=\"ez-toc-section\" id=\"SiC_vs_Rubber_Mechanical_Seal_Performance_Comparison_in_Industrial_Working_Conditions\"><\/span><strong><b>SiC vs Rubber Mechanical Seal: <\/b><\/strong><strong><b>Performance Comparison in Industrial Working Conditions<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Operating environments are greatly different. Thus, these 2 seal types have different performance in actual field operation.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Temperature_Resistance\"><\/span><strong><b>Temperature Resistance<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Silicon carbide mechanical seals work well in high-temperature environments without failure up to 250\u2103. Their low thermal expansion rate prevents deformation at high heat and thermal shock from sudden temperature rises and drops.<\/p>\n<p>Rubber mechanical seals, on the other hand, have strict temperature limits. Common nitrile rubber seals can only be used under temperatures below 100\u2103. Even high-end FKM rubber ones fail to remain stable above 180\u2103. High heat will accelerate their aging, causing gradual leakage and frequent replacement needs.<sup>[4]<\/sup><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Wear_and_Abrasion_Resistance\"><\/span><strong><b>Wear and Abrasion Resistance<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Abrasion resistance is important for equipment handling impurity-containing fluids.<\/p>\n<p>Silicon carbide mechanical seals work better than rubber ones in this aspect. As a high-hardness material, silicon carbide is capable of resisting the effects of friction caused by solids.<\/p>\n<p>Rubber seals have poor abrasion resistance.<sup>[2]<\/sup>\u00a0Their soft surfaces are easily scratched and worn by solid impurities. Long-term operation with particle-laden fluids will cause irreversible damage to the seals,<sup>[1]<\/sup>\u00a0finally leading to leakage and even shutdown for maintenance.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Chemical_Corrosion_Resistance\"><\/span><strong><b>Chemical Corrosion Resistance<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The sintered silicon carbide mechanical seals show great resistance to corrosive chemicals.<sup>[3]<\/sup>\u00a0They have a high level of resistance to corrosion caused by acids, alkalis, and solvents. The tight structure prevents the intrusion of any liquid and the erosion of its composition.<\/p>\n<p>The corrosion resistance of the rubber seal varies according to the type of rubber. Rubber tends to swell or even dissolve in various chemical solutions and, thus, become non-sealing. EPDM can be used in the presence of weak acids and water but not in oil and strong solvents. While nitrile ones adapt to oil-based fluids, corroding quickly in strong alkaline liquids.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Pressure_Bearing_Sealing_Stability\"><\/span><strong><b>Pressure Bearing &amp; Sealing Stability<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Silicon carbide ceramic seals are rigid enough to avoid deformation under high fluid pressure. The flat, smooth seal face ensures uniform contact without leakage under stable pressure, helping them work well in fluctuating pressure environments.<\/p>\n<p>Rubber mechanical seals fit low- to medium-pressure working conditions. They cannot support high-pressure continuous operation for industrial process equipment. Their elastic structure deforms under excessive pressure, and over time, permanent deformation will occur, leading to gap enlargement and then leakage.<sup>[4]<\/sup><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Cost\"><\/span><strong><b>Cost<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Silicon carbide ceramic mechanical seals have higher upfront costs than ordinary rubber ones due to the precision sintering process and high-purity ceramic materials. However, SiC seals have a very long service life in harsh environments. This greatly reduces your replacement frequency and manual maintenance costs, resulting in a lower long-term comprehensive cost.<\/p>\n<p>Rubber mechanical seals feature simple production processes and low material costs, well-suited for small-budget, low-demand equipment projects. But they age and wear quickly in complex environments. You need to always replace them to avoid leakage. This will increase your downtime, adding to hidden operational costs.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Applicable_Industries_for_Silicon_Carbide_Rubber_Seal\"><\/span><strong><b>Applicable Industri<\/b><\/strong><strong><b>e<\/b><\/strong><strong><b>s<\/b><\/strong><strong><b>\u00a0for <\/b><\/strong><strong><b>Silicon Carbide &amp; Rubber <\/b><\/strong><strong><b>Seal<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Matching seals with your equipment and working conditions can maximize your operational efficiency and cost performance.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Ideal_Applications_for_Silicon_Carbide_Mechanical_Seals\"><\/span><strong><b>Ideal Applications for Silicon Carbide Mechanical Seals<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Silicon carbide mechanical seals are designed for harsh industrial working conditions. They are the preferred mechanical seal solution for high-demand systems.<\/p>\n<p>You should choose SiC seals for high-temperature and high-pressure process pumps in chemical plants. They also fit slurry pumps, desulfurization circulating pumps, and mining sewage pumps with solid impurities.<\/p>\n<p>For food and pharmaceutical industrial equipment requiring high cleanliness and zero contamination, silicon carbide seals work perfectly too.<\/p>\n<p>Silicon carbide seals are also perfect for long-term uninterrupted operation equipment. They reduce frequent shutdown maintenance and improve your overall production efficiency.<\/p>\n<figure id=\"attachment_22132\" aria-describedby=\"caption-attachment-22132\" style=\"width: 1280px\" class=\"wp-caption alignnone\"><img decoding=\"async\" data-src=\"https:\/\/nkmceramic.com\/wp-content\/uploads\/2026\/07\/3-SiC-Mechanical-Seals-for-Industrial-Pumps-Applications.jpg\" class=\"size-full wp-image-22132 lazyload\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" alt=\"SiC Mechanical Seals for Industrial Pumps Applications\" width=\"1280\" height=\"720\" \/><figcaption id=\"caption-attachment-22132\" class=\"wp-caption-text\"><noscript><img decoding=\"async\" class=\"size-full wp-image-22132\" src=\"https:\/\/nkmceramic.com\/wp-content\/uploads\/2026\/07\/3-SiC-Mechanical-Seals-for-Industrial-Pumps-Applications.jpg\" alt=\"SiC Mechanical Seals for Industrial Pumps Applications\" width=\"1280\" height=\"720\" srcset=\"https:\/\/nkmceramic.com\/wp-content\/uploads\/2026\/07\/3-SiC-Mechanical-Seals-for-Industrial-Pumps-Applications.jpg 1280w, https:\/\/nkmceramic.com\/wp-content\/uploads\/2026\/07\/3-SiC-Mechanical-Seals-for-Industrial-Pumps-Applications-768x432.jpg 768w, https:\/\/nkmceramic.com\/wp-content\/uploads\/2026\/07\/3-SiC-Mechanical-Seals-for-Industrial-Pumps-Applications-18x10.jpg 18w\" sizes=\"(max-width: 1280px) 100vw, 1280px\" \/><\/noscript> SiC Mechanical Seals for Industrial Pumps Applications<\/figcaption><\/figure>\n<h3><span class=\"ez-toc-section\" id=\"Ideal_Applications_for_Rubber_Mechanical_Seals\"><\/span><strong><b>Ideal Applications for Rubber Mechanical Seals<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Rubber mechanical seals are cost-effective for common, mild working environments. They serve basic industrial sealing needs well.<\/p>\n<p>You can use rubber seals for ordinary water pumps, domestic sewage equipment, and low-pressure circulating water systems. They fit such low-temperature and clean fluid environments without solid particles or strong corrosivity.<sup>[1]<\/sup><\/p>\n<p>General HVAC equipment and light industrial transmission pumps also match rubber seals.<\/p>\n<p>Rubber seals are your best choice if your equipment runs under mild conditions and pursues low procurement costs.<\/p>\n<figure id=\"attachment_22133\" aria-describedby=\"caption-attachment-22133\" style=\"width: 1280px\" class=\"wp-caption alignnone\"><img decoding=\"async\" data-src=\"https:\/\/nkmceramic.com\/wp-content\/uploads\/2026\/07\/4-Rubber-Gasket-for-the-Sealing-Groove-of-a-Metal-Industrial-Engine-Component.jpg\" class=\"size-full wp-image-22133 lazyload\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" alt=\"Rubber Gasket for the Sealing Groove of a Metal Industrial Engine Component\" width=\"1280\" height=\"720\" \/><figcaption id=\"caption-attachment-22133\" class=\"wp-caption-text\"><noscript><img decoding=\"async\" class=\"size-full wp-image-22133\" src=\"https:\/\/nkmceramic.com\/wp-content\/uploads\/2026\/07\/4-Rubber-Gasket-for-the-Sealing-Groove-of-a-Metal-Industrial-Engine-Component.jpg\" alt=\"Rubber Gasket for the Sealing Groove of a Metal Industrial Engine Component\" width=\"1280\" height=\"720\" srcset=\"https:\/\/nkmceramic.com\/wp-content\/uploads\/2026\/07\/4-Rubber-Gasket-for-the-Sealing-Groove-of-a-Metal-Industrial-Engine-Component.jpg 1280w, https:\/\/nkmceramic.com\/wp-content\/uploads\/2026\/07\/4-Rubber-Gasket-for-the-Sealing-Groove-of-a-Metal-Industrial-Engine-Component-768x432.jpg 768w, https:\/\/nkmceramic.com\/wp-content\/uploads\/2026\/07\/4-Rubber-Gasket-for-the-Sealing-Groove-of-a-Metal-Industrial-Engine-Component-18x10.jpg 18w\" sizes=\"(max-width: 1280px) 100vw, 1280px\" \/><\/noscript> Rubber Gasket for the Sealing Groove of a Metal Industrial Engine Component<\/figcaption><\/figure>\n<h2><span class=\"ez-toc-section\" id=\"FAQs\"><\/span><strong><b>FAQ<\/b><\/strong><strong><b>s<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong><b>Why do rubber seals leak frequently in slurry pumps?<\/b><\/strong><\/p>\n<p>Slurry contains hard solid particles. They will scratch rubber seal surfaces. And rubber possesses a weak abrasion resistance, causing leakage after surface wear.<\/p>\n<p><strong><b>Is it necessary to replace rubber seals with silicon carbide seals for old industrial pumps?<\/b><\/strong><\/p>\n<p>Depends on your working conditions. You can upgrade to SiC seals if your pump handles high-temperature, corrosive, or particle-containing fluids.<\/p>\n<p><strong><b>What is the main failure mode of rubber mechanical seals?<\/b><\/strong><\/p>\n<p>Aging deformation, medium swelling, particle wear, and high-temperature cracking.<\/p>\n<p><strong><b>How long is the service life difference between the two seals in desulfurization systems?<\/b><\/strong><\/p>\n<p>Rubber seals last 3-6 months in desulfurization slurry environments.<\/p>\n<p>Silicon carbide seals can work stably for 2-3 years with minimal wear.<\/p>\n<p><strong><b>Can SiC mechanical seals be used for vacuum pump equipment?<\/b><\/strong><\/p>\n<p>Yes. Silicon carbide features low outgassing performance and a stable structure, very suitable for high-purity vacuum pump sealing scenarios.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span><strong><b>Conclusion<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Silicon carbide mechanical seals and rubber mechanical seals target completely different industrial applications. You need to match seals with working conditions. Choose rubber seals for conventional mild working conditions. Upgrade to high-performance sintered silicon carbide mechanical seals if you pursue long-term stability and low failure rate for industrial equipment.<\/p>\n<p><a href=\"https:\/\/nkmceramic.com\/\"><u>Newthink New Materials<\/u><\/a>\u00a0is a professional advanced ceramic manufacturer and supplier. We provide high-quality <a href=\"https:\/\/nkmceramic.com\/silicon-carbide-seal-ring\/\"><u>silicon carbide mechanical seals<\/u><\/a>\u00a0to assist your important industry. <a href=\"https:\/\/nkmceramic.com\/contact-us\/\"><u>Contact us<\/u><\/a>\u00a0for more information on customization.<\/p>\n<p>Thanks for your reading. Hope this article will be helpful.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Reference\"><\/span><strong><b>Reference<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>[1] <a href=\"https:\/\/books.google.com\/books?hl=en&amp;lr=&amp;id=COgvEhUnFq8C&amp;oi=fnd&amp;pg=PP1&amp;dq=rubber+seals&amp;ots=AntXxJjkJg&amp;sig=KEIGSi7AZRcvkl4GQ9B55lH291g\"><u>Chandrasekaran, C. (2009).\u00a0<\/u><em><u><i>Rubber seals for fluid and hydraulic systems<\/i><\/u><\/em><u>. William Andrew.<\/u><\/a><\/p>\n<p>[2] <a href=\"https:\/\/journals.sagepub.com\/doi\/abs\/10.1177\/1350650114541750\"><u>Feyzullaho\u011flu, E. (2015). Abrasive wear, thermal and viscoelastic behaviors of rubber seal materials used in different working conditions.\u00a0<\/u><em><u><i>Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology<\/i><\/u><\/em><u>,\u00a0<\/u><em><u><i>229<\/i><\/u><\/em><u>(1), 64-73.<\/u><\/a><\/p>\n<p>[3] <a href=\"https:\/\/journals.sagepub.com\/doi\/abs\/10.1080\/17436753.2019.1634942\"><u>Guo, X., Wang, R., Zheng, P., Lu, Z., &amp; Yang, H. (2019). Pressureless sintering of multilayer graphene reinforced silicon carbide ceramics for mechanical seals.\u00a0<\/u><em><u><i>Advances in Applied Ceramics<\/i><\/u><\/em><u>,\u00a0<\/u><em><u><i>118<\/i><\/u><\/em><u>(7), 409-417.<\/u><\/a><\/p>\n<p>[4] <a href=\"https:\/\/pubs.rsc.org\/sm\/article-abstract\/13\/48\/9103\/585817\"><u>Tiwari, A., Dorogin, L., Tahir, M., St\u00f6ckelhuber, K. W., Heinrich, G., Espallargas, N., &amp; Persson, B. N. (2017). Rubber contact mechanics: adhesion, friction and leakage of seals.\u00a0<\/u><em><u><i>Soft Matter<\/i><\/u><\/em><u>,\u00a0<\/u><em><u><i>13<\/i><\/u><\/em><u>(48), 9103-9121.<\/u><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Mechanical seals are a set of parts in industrial pumps. They are used to prevent leakage and protect machine internals from damage. Silicon carbide and rubber are 2 popular seal materials. Both of them are widely used in industries needing mechanical seals, fitting different industrial working conditions. This article mainly [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":22130,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"disabled","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-22129","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Silicon Carbide vs Rubber Mechanical Seal: Which is Better? 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