{"id":1822,"date":"2025-06-11T14:16:48","date_gmt":"2025-06-11T06:16:48","guid":{"rendered":"https:\/\/hengoseal.com\/?p=1822"},"modified":"2025-06-11T14:16:48","modified_gmt":"2025-06-11T06:16:48","slug":"ptfe-gasket-complete-guide","status":"publish","type":"post","link":"https:\/\/hengoseal.com\/uk\/ptfe-gasket-complete-guide\/","title":{"rendered":"PTFE Gasket\uff1aWhy is it the Most Reliable Sealant Solution?"},"content":{"rendered":"<p>Tired of frequent seal failures and constant maintenance? PTFE gaskets could be the high-performance solution your system desperately needs.<\/p>\n<p>PTFE gaskets offer exceptional resistance to chemicals and extreme temperatures, making them the go-to choice for reliable sealing in demanding industrial environments.<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/hengoseal.com\/wp-content\/uploads\/2025\/06\/15613669833_25866481.jpg\" alt=\"placeholder_image\" \/><\/p>\n<p>Whether you're in chemical processing, food manufacturing, or fluid power systems, PTFE gaskets provide long-term stability and cost-efficiency. In this guide, I\u2019ll break down types, applications, materials, and how to select the right PTFE gasket for your system.<\/p>\n<h2>What is PTFE gasket used for?<\/h2>\n<p>PTFE gaskets are used to create leak-proof seals in pipelines and flanged joints, especially in environments involving aggressive chemicals or high-purity standards.<\/p>\n<p>Their superior chemical resistance and temperature tolerance make them ideal for food-grade, pharmaceutical, and industrial processing applications.<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/hengoseal.com\/wp-content\/uploads\/2025\/06\/1749612227268.png\" alt=\"placeholder_image\" \/><\/p>\n<h3>What makes PTFE gaskets superior in industrial sealing?<\/h3>\n<p>PTFE outperforms rubber, graphite, and fiber materials due to its low friction, high chemical inertness, and wide temperature operating range.<\/p>\n<table>\n<thead>\n<tr>\n<th>\u041e\u0441\u043e\u0431\u043b\u0438\u0432\u0456\u0441\u0442\u044c<\/th>\n<th>PTFE Gasket<\/th>\n<th>Nitrile Gasket<\/th>\n<th>Graphite Gasket<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u0425\u0456\u043c\u0456\u0447\u043d\u0430 \u0441\u0442\u0456\u0439\u043a\u0456\u0441\u0442\u044c<\/td>\n<td>\u0427\u0443\u0434\u043e\u0432\u043e<\/td>\n<td>\u0411\u0456\u0434\u043d\u0438\u0439<\/td>\n<td>\u0434\u043e\u0431\u0440\u0435<\/td>\n<\/tr>\n<tr>\n<td>\u0414\u0456\u0430\u043f\u0430\u0437\u043e\u043d \u0442\u0435\u043c\u043f\u0435\u0440\u0430\u0442\u0443\u0440<\/td>\n<td>-200\u00b0C \u0434\u043e +260\u00b0C<\/td>\n<td>\u0432\u0456\u0434 -30\u00b0C \u0434\u043e +100\u00b0C<\/td>\n<td>Up to 450\u00b0C<\/td>\n<\/tr>\n<tr>\n<td>\u0412\u0456\u0434\u043f\u043e\u0432\u0456\u0434\u043d\u0456\u0441\u0442\u044c FDA<\/td>\n<td>\u0442\u0430\u043a<\/td>\n<td>\u043d\u0435\u043c\u0430\u0454<\/td>\n<td>\u043d\u0435\u043c\u0430\u0454<\/td>\n<\/tr>\n<tr>\n<td>\u0422\u0440\u0438\u0432\u0430\u043b\u0456\u0441\u0442\u044c \u0436\u0438\u0442\u0442\u044f<\/td>\n<td>Long<\/td>\n<td>Short<\/td>\n<td>\u0421\u0435\u0440\u0435\u0434\u043d\u0456\u0439<\/td>\n<\/tr>\n<tr>\n<td>Non-Stick Property<\/td>\n<td>\u0442\u0430\u043a<\/td>\n<td>\u043d\u0435\u043c\u0430\u0454<\/td>\n<td>\u043d\u0435\u043c\u0430\u0454<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Compared to other options, PTFE gaskets ensure consistent sealing over time with minimal degradation.<\/p>\n<h2>What are the main types of PTFE gaskets?<\/h2>\n<p>From virgin PTFE to expanded and filled variants, each type of PTFE gasket is engineered for specific pressure, temperature, or surface compatibility requirements.<\/p>\n<table>\n<thead>\n<tr>\n<th>Gasket Type<\/th>\n<th>\u0421\u0446\u0435\u043d\u0430\u0440\u0456\u0439 \u0437\u0430\u0441\u0442\u043e\u0441\u0443\u0432\u0430\u043d\u043d\u044f<\/th>\n<th>\u041a\u043b\u044e\u0447\u043e\u0432\u0456 \u043f\u0435\u0440\u0435\u0432\u0430\u0433\u0438<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Virgin PTFE<\/td>\n<td>High-purity applications<\/td>\n<td>Chemically inert, FDA-approved<\/td>\n<\/tr>\n<tr>\n<td>Filled PTFE (glass\/carbon)<\/td>\n<td>High-pressure systems<\/td>\n<td>Increased mechanical strength<\/td>\n<\/tr>\n<tr>\n<td>Expanded PTFE (ePTFE)<\/td>\n<td>Uneven flange sealing<\/td>\n<td>Soft, highly compressible<\/td>\n<\/tr>\n<tr>\n<td>PTFE Envelope Gasket<\/td>\n<td>Chemical media with elastomeric support core<\/td>\n<td>Combines flexibility with resistance<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Still unsure which to choose? Explore our full <a href=\"https:\/\/hengoseal.com\/uk\/products\/ptfe-gasket\/\" target=\"_blank\">PTFE gasket product line<\/a> for specifications and technical support.<\/p>\n<h2>How is a PTFE gasket manufactured?<\/h2>\n<p>PTFE gaskets are made by molding, skiving, or expanding virgin or filled PTFE resin, then cut or machined into ring, sheet, or custom shapes for precise sealing.<\/p>\n<table>\n<thead>\n<tr>\n<th>Process Step<\/th>\n<th>\u043e\u043f\u0438\u0441<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Resin Preparation<\/td>\n<td>Virgin or filled PTFE formulation<\/td>\n<\/tr>\n<tr>\n<td>Molding\/Skiving<\/td>\n<td>Sheets, rods, or tubes formed<\/td>\n<\/tr>\n<tr>\n<td>Cutting or CNC Machining<\/td>\n<td>Converted into gaskets or complex shapes<\/td>\n<\/tr>\n<tr>\n<td>Quality Control<\/td>\n<td>Thickness, tolerance, and sealing verified<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u043d\u0430\u0448 <a href=\"https:\/\/hengoseal.com\/uk\/products\/ptfe-gasket\/\" target=\"_blank\">custom PTFE gasket service<\/a> ensures accurate dimensions for any flange type.<br \/>\n<div style=\"width: 352px;\" class=\"wp-video\"><!--[if lt IE 9]><script>document.createElement('video');<\/script><![endif]-->\n<video class=\"wp-video-shortcode\" id=\"video-1822-1\" width=\"352\" height=\"640\" preload=\"metadata\" controls=\"controls\"><source type=\"video\/mp4\" src=\"http:\/\/hengoseal.com\/wp-content\/uploads\/2025\/06\/20231228_141f8e49c6ad79a8_443858361887_80388936285265_published_mp4_264_ld_taobao.mp4?_=1\" \/><a href=\"http:\/\/hengoseal.com\/wp-content\/uploads\/2025\/06\/20231228_141f8e49c6ad79a8_443858361887_80388936285265_published_mp4_264_ld_taobao.mp4\">http:\/\/hengoseal.com\/wp-content\/uploads\/2025\/06\/20231228_141f8e49c6ad79a8_443858361887_80388936285265_published_mp4_264_ld_taobao.mp4<\/a><\/video><\/div><\/p>\n<h2>How do I choose the right PTFE gasket material?<\/h2>\n<p>Choosing the right gasket depends on pressure, chemical type, temperature, and sealing surface.<\/p>\n<table>\n<thead>\n<tr>\n<th>Application Need<\/th>\n<th>Recommended PTFE Type<\/th>\n<th>Why It Works<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Acid or caustic chemical use<\/td>\n<td>Virgin or envelope PTFE<\/td>\n<td>100% inert to most chemicals<\/td>\n<\/tr>\n<tr>\n<td>High pressure or torque<\/td>\n<td>Filled PTFE (glass\/carbon)<\/td>\n<td>Resists deformation under load<\/td>\n<\/tr>\n<tr>\n<td>Sanitary or clean processing<\/td>\n<td>Virgin PTFE<\/td>\n<td>FDA, EU compliant and sterile<\/td>\n<\/tr>\n<tr>\n<td>Uneven or scratched flanges<\/td>\n<td>Expanded PTFE<\/td>\n<td>Fills surface irregularities<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Need help deciding? Email us at <strong>info@hengoseal.com<\/strong> \u0430\u0431\u043e WhatsApp <strong>+86 17622979498<\/strong> \u2014 we\u2019ll guide you through.<\/p>\n<h2>Can PTFE gaskets handle aggressive environments?<\/h2>\n<p>Yes \u2014 that\u2019s where they excel. In fact, PTFE is virtually unaffected by all acids, solvents, and alkalis except molten alkali metals and fluorine gas.<\/p>\n<table>\n<thead>\n<tr>\n<th>Media Type<\/th>\n<th>PTFE Gasket Performance<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Hydrochloric\/Sulfuric Acid<\/td>\n<td>\u0427\u0443\u0434\u043e\u0432\u043e<\/td>\n<\/tr>\n<tr>\n<td>Organic Solvents<\/td>\n<td>\u0427\u0443\u0434\u043e\u0432\u043e<\/td>\n<\/tr>\n<tr>\n<td>Steam and Heat Cycles<\/td>\n<td>\u0434\u043e\u0431\u0440\u0435<\/td>\n<\/tr>\n<tr>\n<td>Food-grade Liquids<\/td>\n<td>Excellent (FDA safe)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Want to see how PTFE compares to expanded versions? Read our <a href=\"https:\/\/hengoseal.com\/uk\/ptfe-envelope-vs-expanded-gasket\/\" target=\"_blank\">PTFE envelope vs expanded gasket comparison<\/a>.<\/p>\n<h2>\u0412\u0438\u0441\u043d\u043e\u0432\u043e\u043a<\/h2>\n<p>PTFE gaskets offer unmatched durability and performance in chemical, thermal, and high-purity applications.<\/p>\n<h2>Let us help you seal it right<\/h2>\n<p>Contact Hengoseal for custom sizes, low MOQs, and technical support.<br \/>\n\ud83d\udce7 \u0415\u043b\u0435\u043a\u0442\u0440\u043e\u043d\u043d\u0430 \u043f\u043e\u0448\u0442\u0430: info@hengoseal.com<br \/>\n\ud83d\udcf2 WhatsApp: +86 17622979498<br \/>\nWe provide durable PTFE gaskets that reduce downtime and boost reliability.<\/p>\n<h2>Related topic<\/h2>\n<p><a href=\"https:\/\/hengoseal.com\/uk\/products\/ptfe-gasket\/\" target=\"_blank\">PTFE Gasket Product Details<\/a><br \/>\n<a href=\"https:\/\/hengoseal.com\/uk\/ptfe-envelope-vs-expanded-gasket\/\" target=\"_blank\">PTFE Envelope vs Expanded Gasket<\/a><br \/>\n<a href=\"https:\/\/hengoseal.com\/uk\/ptfe-gasket-tape-ring-guide\/\" target=\"_blank\">PTFE Gasket Tape &amp; Ring Application Guide<\/a>  <\/p>\n<style>\n.faq-question {\ncursor: pointer;\nfont-weight: bold;\npadding: 10px;\nbackground-color: #f1f1f1;\nborder: 1px solid #ddd;\nmargin-bottom: 5px;\ncolor: #0073aa;\n}\n.faq-answer {\ndisplay: none;\npadding: 10px;\nborder-left: 3px solid #0073aa;\nbackground-color: #f9f9f9;\nmargin-bottom: 10px;\n}\n<\/style>\n<p><script>\ndocument.addEventListener('DOMContentLoaded', function() {\nconst questions = document.querySelectorAll('.faq-question');\nquestions.forEach(question => {\nquestion.addEventListener('click', function() {\nconst answer = this.nextElementSibling;\nanswer.style.display = answer.style.display === 'block' ? 'none' : 'block';\n});\n});\n});\n<\/script><br \/>\n<!-- JSON-LD FAQ Schema --><br \/>\n<script type=\"application\/ld+json\">\n{\n\"@context\": \"https:\/\/schema.org\",\n\"@type\": \"FAQPage\",\n\"mainEntity\": [\n{\n\"@type\": \"Question\",\n\"name\": \"Can PTFE gaskets be reused after disassembly?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"Usually not. Most PTFE gaskets deform on first compression, especially under high torque. Expanded PTFE offers better reuse potential.\"\n}\n},\n{\n\"@type\": \"Question\",\n\"name\": \"Are PTFE gaskets suitable for food and pharma?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"Yes. Virgin PTFE is FDA and EU compliant, making it safe for contact with food, water, and active pharmaceutical ingredients.\"\n}\n},\n{\n\"@type\": \"Question\",\n\"name\": \"What&rsquo;s the difference between virgin and filled PTFE gaskets?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"Virgin PTFE is pure and soft. Filled PTFE contains glass, carbon, or bronze to enhance mechanical strength and reduce creep.\"\n}\n},\n{\n\"@type\": \"Question\",\n\"name\": \"Are PTFE gaskets good for steam applications?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"Yes, but filled or reinforced PTFE types are better in high-temperature, high-pressure steam environments.\"\n}\n},\n{\n\"@type\": \"Question\",\n\"name\": \"Can I use PTFE gaskets on scratched flanges?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"Expanded PTFE is ideal for such cases due to its high compressibility and adaptability to surface defects.\"\n}\n},\n{\n\"@type\": \"Question\",\n\"name\": \"How long do PTFE gaskets last?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"In normal industrial conditions, they can last several years depending on temperature, chemical exposure, and bolt torque.\"\n}\n},\n{\n\"@type\": \"Question\",\n\"name\": \"Do PTFE gaskets require lubrication?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"No. PTFE&rsquo;s low-friction surface provides a natural release property, eliminating the need for additional lubricants.\"\n}\n},\n{\n\"@type\": \"Question\",\n\"name\": \"What&rsquo;s the typical MOQ if I need custom PTFE gaskets?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"At Hengoseal, we support small batches with MOQs as low as 100 pcs for custom parts. Contact us to discuss your needs.\"\n}\n}\n]\n}\n<\/script><\/p>\n<h2>\u041b\u044e\u0434\u0438 \u0442\u0430\u043a\u043e\u0436 \u0437\u0430\u043f\u0438\u0442\u0443\u044e\u0442\u044c<\/h2>\n<div class=\"faq-container\">\n<div class=\"faq-question\">1. Can PTFE gaskets be reused after disassembly?<\/div>\n<div class=\"faq-answer\">Usually not. Most PTFE gaskets deform on first compression, especially under high torque. Expanded PTFE offers better reuse potential.<\/div>\n<\/div>\n<div class=\"faq-container\">\n<div class=\"faq-question\">2. Are PTFE gaskets suitable for food and pharma?<\/div>\n<div class=\"faq-answer\">Yes. Virgin PTFE is FDA and EU compliant, making it safe for contact with food, water, and active pharmaceutical ingredients.<\/div>\n<\/div>\n<div class=\"faq-container\">\n<div class=\"faq-question\">3. What\u2019s the difference between virgin and filled PTFE gaskets?<\/div>\n<div class=\"faq-answer\">Virgin PTFE is pure and soft. Filled PTFE contains glass, carbon, or bronze to enhance mechanical strength and reduce creep.<\/div>\n<\/div>\n<div class=\"faq-container\">\n<div class=\"faq-question\">4. Are PTFE gaskets good for steam applications?<\/div>\n<div class=\"faq-answer\">Yes, but filled or reinforced PTFE types are better in high-temperature, high-pressure steam environments.<\/div>\n<\/div>\n<div class=\"faq-container\">\n<div class=\"faq-question\">5. Can I use PTFE gaskets on scratched flanges?<\/div>\n<div class=\"faq-answer\">Expanded PTFE is ideal for such cases due to its high compressibility and adaptability to surface defects.<\/div>\n<\/div>\n<div class=\"faq-container\">\n<div class=\"faq-question\">6. How long do PTFE gaskets last?<\/div>\n<div class=\"faq-answer\">In normal industrial conditions, they can last several years depending on temperature, chemical exposure, and bolt torque.<\/div>\n<\/div>\n<div class=\"faq-container\">\n<div class=\"faq-question\">7. Do PTFE gaskets require lubrication?<\/div>\n<div class=\"faq-answer\">No. PTFE\u2019s low-friction surface provides a natural release property, eliminating the need for additional lubricants.<\/div>\n<\/div>\n<div class=\"faq-container\">\n<div class=\"faq-question\">8. What\u2019s the typical MOQ if I need custom PTFE gaskets?<\/div>\n<div class=\"faq-answer\">At Hengoseal, we support small batches with MOQs as low as 100 pcs for custom parts. Contact us to discuss your needs.<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Tired of frequent seal failures and constant maintenance? PTFE gaskets could be the high-performance solution your system desperately needs. PTFE [&hellip;]<\/p>","protected":false},"author":1,"featured_media":1814,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"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":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","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":"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":"","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-4)","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-4)","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-4)","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":[63],"tags":[],"class_list":["post-1822","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-gasket"],"_links":{"self":[{"href":"https:\/\/hengoseal.com\/uk\/wp-json\/wp\/v2\/posts\/1822","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hengoseal.com\/uk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hengoseal.com\/uk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hengoseal.com\/uk\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hengoseal.com\/uk\/wp-json\/wp\/v2\/comments?post=1822"}],"version-history":[{"count":0,"href":"https:\/\/hengoseal.com\/uk\/wp-json\/wp\/v2\/posts\/1822\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hengoseal.com\/uk\/wp-json\/wp\/v2\/media\/1814"}],"wp:attachment":[{"href":"https:\/\/hengoseal.com\/uk\/wp-json\/wp\/v2\/media?parent=1822"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hengoseal.com\/uk\/wp-json\/wp\/v2\/categories?post=1822"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hengoseal.com\/uk\/wp-json\/wp\/v2\/tags?post=1822"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}