{"id":23459,"date":"2026-05-05T06:31:01","date_gmt":"2026-05-05T06:31:01","guid":{"rendered":"https:\/\/hansaplas.com\/?p=23459"},"modified":"2026-05-05T06:31:01","modified_gmt":"2026-05-05T06:31:01","slug":"ptfe-vs-peek-which-is-better-for-your-project","status":"publish","type":"post","link":"https:\/\/hansaplas.com\/de\/ptfe-vs-peek-which-is-better-for-your-project\/","title":{"rendered":"PTFE vs PEEK : Which is better for your project?"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">PTFE and PEEK are both high-performance thermoplastics, but they offer different strengths, which means each one excels in different applications. Choosing between them comes down to finding the right balance between performance and cost. Both materials perform well in key areas like temperature resistance, chemical resistance, mechanical strength, and dielectric strength.<\/span><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_81 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:\/\/hansaplas.com\/de\/ptfe-vs-peek-which-is-better-for-your-project\/#Advantages_of_PTFE\" >Advantages of PTFE<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/hansaplas.com\/de\/ptfe-vs-peek-which-is-better-for-your-project\/#Advantages_of_PEEK\" >Advantages of PEEK<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/hansaplas.com\/de\/ptfe-vs-peek-which-is-better-for-your-project\/#Chemical_Structural\" >Chemical Structural<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/hansaplas.com\/de\/ptfe-vs-peek-which-is-better-for-your-project\/#Properties_Comparison\" >Properties Comparison<\/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:\/\/hansaplas.com\/de\/ptfe-vs-peek-which-is-better-for-your-project\/#Chemical_Resistance\" >Chemische Best\u00e4ndigkeit<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/hansaplas.com\/de\/ptfe-vs-peek-which-is-better-for-your-project\/#High_Temperature_Resistance\" >High Temperature 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:\/\/hansaplas.com\/de\/ptfe-vs-peek-which-is-better-for-your-project\/#Thermal_Property\" >Thermal Property<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/hansaplas.com\/de\/ptfe-vs-peek-which-is-better-for-your-project\/#Mechanical_Strength\" >Mechanische Festigkeit<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/hansaplas.com\/de\/ptfe-vs-peek-which-is-better-for-your-project\/#Electrical_Insulation\" >Elektrische Isolierung<\/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:\/\/hansaplas.com\/de\/ptfe-vs-peek-which-is-better-for-your-project\/#How_PTFE_and_PEEK_solve_different_engineering_problems\" >How PTFE and PEEK solve different engineering problems\u00a0<\/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:\/\/hansaplas.com\/de\/ptfe-vs-peek-which-is-better-for-your-project\/#Industry\" >Industrie<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/hansaplas.com\/de\/ptfe-vs-peek-which-is-better-for-your-project\/#Aerospace\" >Luft- und Raumfahrt<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/hansaplas.com\/de\/ptfe-vs-peek-which-is-better-for-your-project\/#Oil_and_Gas\" >\u00d6l und Gas<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/hansaplas.com\/de\/ptfe-vs-peek-which-is-better-for-your-project\/#Semiconductor\" >Semiconductor<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/hansaplas.com\/de\/ptfe-vs-peek-which-is-better-for-your-project\/#Hydrogen_energy_and_renewable_energy\" >Hydrogen energy and renewable energy<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/hansaplas.com\/de\/ptfe-vs-peek-which-is-better-for-your-project\/#Scenarios_where_PTFE_cannot_replace_PEEK\" >Scenarios where PTFE cannot replace PEEK<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/hansaplas.com\/de\/ptfe-vs-peek-which-is-better-for-your-project\/#Structural_load-bearing\" >Structural load-bearing<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/hansaplas.com\/de\/ptfe-vs-peek-which-is-better-for-your-project\/#High_temperature_load_conditions\" >High temperature + load conditions<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/hansaplas.com\/de\/ptfe-vs-peek-which-is-better-for-your-project\/#Precision_dimensional_control\" >Precision dimensional control<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/hansaplas.com\/de\/ptfe-vs-peek-which-is-better-for-your-project\/#Repeated_mechanical_motion\" >Repeated mechanical motion<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/hansaplas.com\/de\/ptfe-vs-peek-which-is-better-for-your-project\/#Conclusion\" >Abschluss<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/hansaplas.com\/de\/ptfe-vs-peek-which-is-better-for-your-project\/#FAQ\" >H\u00e4ufig gestellte Fragen<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/hansaplas.com\/de\/ptfe-vs-peek-which-is-better-for-your-project\/#Why_is_PEEK_more_expensive_than_PTFE\" >Why is PEEK more expensive than PTFE?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/hansaplas.com\/de\/ptfe-vs-peek-which-is-better-for-your-project\/#How_do_I_choose_between_PTFE_and_PEEK\" >How do I choose between PTFE and PEEK?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/hansaplas.com\/de\/ptfe-vs-peek-which-is-better-for-your-project\/#Is_PTFE_stronger_than_PEEK\" >Is PTFE stronger than PEEK?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"https:\/\/hansaplas.com\/de\/ptfe-vs-peek-which-is-better-for-your-project\/#Is_PTFE_more_chemically_resistant_than_PEEK\" >Is PTFE more chemically resistant than PEEK?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-27\" href=\"https:\/\/hansaplas.com\/de\/ptfe-vs-peek-which-is-better-for-your-project\/#Can_PTFE_and_PEEK_both_operate_at_250%C2%B0C\" >Can PTFE and PEEK both operate at 250\u00b0C?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Advantages_of_PTFE\"><\/span><span style=\"font-weight: 400;\">Advantages of PTFE<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">PTFE offers outstanding chemical resistance and reacts with almost no chemicals. It has an extremely low coefficient of friction\u2014around 0.04 under dry conditions\u2014and provides natural self-lubrication. PTFE is also inherently non-stick and has good dielectric (electrical insulation) properties.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Advantages_of_PEEK\"><\/span><span style=\"font-weight: 400;\">Advantages of PEEK<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">PEEK\u2019s biggest advantage is its exceptionally high mechanical strength and excellent creep resistance. It can operate continuously at temperatures up to 260\u00b0C (500\u00b0F), with short-term use reaching as high as 300\u00b0C (572\u00b0F). Because of this, PEEK is well suited for high-load applications in high-temperature environments.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Chemical_Structural\"><\/span><span style=\"font-weight: 400;\">Chemical Structural<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">The molecular structures of PTFE and PEEK are what fundamentally set them apart.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">PTFE is made up of only carbon and fluorine. The carbon\u2013fluorine bond is extremely strong, which makes PTFE highly resistant to almost all chemicals. Its molecular structure is linear and has no side groups, resulting in weak intermolecular forces\u2014this is why PTFE has relatively low mechanical strength.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">PEEK, on the other hand, has a much more complex molecular structure. This gives it high mechanical strength and excellent creep resistance, but its chemical resistance is not as strong as PTFE.<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-23462\" src=\"http:\/\/hansaplas.com\/wp-content\/uploads\/2026\/05\/PEEK-and-PTFE-Chemical-Structural.jpg\" alt=\"\" width=\"2048\" height=\"756\" srcset=\"https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/05\/PEEK-and-PTFE-Chemical-Structural.jpg 2048w, https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/05\/PEEK-and-PTFE-Chemical-Structural-768x284.jpg 768w, https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/05\/PEEK-and-PTFE-Chemical-Structural-1536x567.jpg 1536w, https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/05\/PEEK-and-PTFE-Chemical-Structural-18x7.jpg 18w\" sizes=\"auto, (max-width: 2048px) 100vw, 2048px\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Properties_Comparison\"><\/span><span style=\"font-weight: 400;\">Properties Comparison<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<table>\n<tbody>\n<tr>\n<td><span style=\"font-weight: 400;\">Artikel<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Standard<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Einheit<\/span><\/td>\n<td><span style=\"font-weight: 400;\">SP\u00c4HEN<\/span><\/td>\n<td><span style=\"font-weight: 400;\">PTFE<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Zugfestigkeit<\/span><\/td>\n<td><span style=\"font-weight: 400;\">ISO 527<\/span><\/td>\n<td><span style=\"font-weight: 400;\">MPa<\/span><\/td>\n<td><span style=\"font-weight: 400;\">95<\/span><\/td>\n<td><span style=\"font-weight: 400;\">20-35<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Bending Strength<\/span><\/td>\n<td><span style=\"font-weight: 400;\">ISO 178<\/span><\/td>\n<td><span style=\"font-weight: 400;\">MPa<\/span><\/td>\n<td><span style=\"font-weight: 400;\">155<\/span><\/td>\n<td><span style=\"font-weight: 400;\">10-20<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Schmelzpunkt<\/span><\/td>\n<td><span style=\"font-weight: 400;\">ISO 11357<\/span><\/td>\n<td><span style=\"font-weight: 400;\">\u2103<\/span><\/td>\n<td><span style=\"font-weight: 400;\">343<\/span><\/td>\n<td><span style=\"font-weight: 400;\">327<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Coefficient of Thermal Expansion<\/span><\/td>\n<td><span style=\"font-weight: 400;\">ASTM D696<\/span><\/td>\n<td><span style=\"font-weight: 400;\">ppm K<\/span><span style=\"font-weight: 400;\">-1<\/span><\/td>\n<td><span style=\"font-weight: 400;\">45<\/span><\/td>\n<td><span style=\"font-weight: 400;\">100-200<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Dielectric Constant<\/span><\/td>\n<td><span style=\"font-weight: 400;\">IEC 62631<\/span><\/td>\n<td><span style=\"font-weight: 400;\">&#8211;<\/span><\/td>\n<td><span style=\"font-weight: 400;\">3.0<\/span><\/td>\n<td><span style=\"font-weight: 400;\">2.0<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Water Absorbation Rate<\/span><\/td>\n<td><span style=\"font-weight: 400;\">ISO 62-1<\/span><\/td>\n<td><span style=\"font-weight: 400;\">%<\/span><\/td>\n<td><span style=\"font-weight: 400;\">0.07<\/span><\/td>\n<td><span style=\"font-weight: 400;\">\uff1c0.01<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Reibungskoeffizient<\/span><\/td>\n<td><span style=\"font-weight: 400;\">ASTM D3702<\/span><\/td>\n<td><span style=\"font-weight: 400;\">100N-120rpm<\/span><\/td>\n<td><span style=\"font-weight: 400;\">0.30-0.38<\/span><\/td>\n<td><span style=\"font-weight: 400;\">0.04<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><span class=\"ez-toc-section\" id=\"Chemical_Resistance\"><\/span><span style=\"font-weight: 400;\">Chemische Best\u00e4ndigkeit<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">PTFE is widely known as the \u201cking of plastics,\u201d and it is more commonly recognized under the brand name \u201cTeflon.\u201d It has the best chemical resistance of any plastic, and it is almost completely inert to most chemicals. It can withstand strong acids, strong bases, and most organic solvents without reacting. If your application is in the chemical industry and requires high corrosion resistance, PTFE is usually the best choice.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">PEEK also offers good chemical resistance, but it has some limitations. It can resist most organic and aqueous media, but it is not resistant to concentrated sulfuric acid, certain halogens, or halogenated compounds at high temperatures, where it can be degraded or attacked.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"High_Temperature_Resistance\"><\/span><span style=\"font-weight: 400;\">High Temperature Resistance<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\"><a href=\"https:\/\/hansaplas.com\/de\/ptfe-temperaturbereich\/\">PTFE has a long-term service temperature range<\/a> of about -200\u00b0C to 260\u00b0C (-328\u00b0F to 500\u00b0F). This means it performs well not only at high temperatures but also in extremely low-temperature environments.However, even though PTFE can operate at 260\u00b0C, it tends to deform under load or pressure at high temperatures.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">PEEK, on the other hand, can withstand higher temperatures, typically around 300\u2013325\u00b0C (572\u2013617\u00b0F), and it maintains its shape and mechanical strength during long-term use. Therefore, if your application involves extreme high-temperature conditions, PEEK is usually the better choice.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Thermal_Property\"><\/span><span style=\"font-weight: 400;\">Thermal Property<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">PTFE has a melting point of 327\u00b0C (620.6\u00b0F). Its coefficient of thermal expansion is about 100\u2013200 \u00d710\u207b\u2076 \/\u00b0C, which is relatively high among engineering plastics. This means its dimensions can change significantly with temperature fluctuations, and its rigidity is relatively low. If your application requires tight tolerances, PTFE should be selected with caution.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">PEEK has a higher melting point of around 400\u00b0C (752\u00b0F). Its coefficient of thermal expansion is about 40\u201360 \u00d710\u207b\u2076 \/\u00b0C, much lower than PTFE. Compared to PTFE, PEEK offers higher stiffness and much better dimensional stability under temperature changes, making it suitable for applications that require high strength and minimal deformation.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Mechanical_Strength\"><\/span><span style=\"font-weight: 400;\">Mechanische Festigkeit<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">PTFE has a tensile strength of about 20\u201335 MPa, while PEEK can reach up to around 95 MPa. This clearly shows that PEEK has significantly higher mechanical strength than PTFE, making it more suitable for high-load and wear-resistant applications.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">In addition, PEEK can be processed using machining methods similar to metals. It combines metal-like strength with much lower weight, which allows it to replace metal in certain applications where stiffness is required but metal is not suitable. A typical example is in aerospace, where lightweight and high-strength materials are critical.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Electrical_Insulation\"><\/span><span style=\"font-weight: 400;\">Elektrische Isolierung<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">PTFE has an extremely low dielectric constant of around 2.0, and it is not affected by humidity. This makes it ideal for extreme conditions such as high-frequency and high-voltage applications, including cable insulation and microwave communication components.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">PEEK has a slightly higher dielectric constant of about 3.0. However, due to its overall performance advantages, it is well-suited for high-temperature and mechanically demanding environments. It also maintains excellent dimensional stability under load.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"How_PTFE_and_PEEK_solve_different_engineering_problems\"><\/span><span style=\"font-weight: 400;\">How PTFE and PEEK solve different engineering problems\u00a0<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Industry\"><\/span><span style=\"font-weight: 400;\">Industrie<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">PTFE: Due to its extremely low friction coefficient, PTFE is commonly used in sliding bearings and guide rails. Its chemical inertness also makes it ideal for low-friction linings.<img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-23464 aligncenter\" src=\"http:\/\/hansaplas.com\/wp-content\/uploads\/2026\/05\/PTFE-Bearing.png\" alt=\"\" width=\"480\" height=\"480\" srcset=\"https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/05\/PTFE-Bearing.png 480w, https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/05\/PTFE-Bearing-150x150.png 150w, https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/05\/PTFE-Bearing-12x12.png 12w\" sizes=\"auto, (max-width: 480px) 100vw, 480px\" \/><\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">PEEK: With its high rigidity and excellent dimensional stability, PEEK is used for pump components, load-bearing parts, and wear <\/span><span style=\"font-weight: 400;\">rings.<img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-23465 aligncenter\" src=\"http:\/\/hansaplas.com\/wp-content\/uploads\/2026\/05\/PEEK-Wear-Ring.png\" alt=\"\" width=\"398\" height=\"398\" srcset=\"https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/05\/PEEK-Wear-Ring.png 398w, https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/05\/PEEK-Wear-Ring-150x150.png 150w, https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/05\/PEEK-Wear-Ring-12x12.png 12w\" sizes=\"auto, (max-width: 398px) 100vw, 398px\" \/><\/span><\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Aerospace\"><\/span><a href=\"https:\/\/hansaplas.com\/de\/anwendung\/luft-und-raumfahrt\/\"><span style=\"font-weight: 400;\">Luft- und Raumfahrt<\/span><\/a><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h3><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">PTFE: Because of its excellent electrical insulation properties, PTFE is often used in insulation systems and low-friction bearings.<img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-23466 aligncenter\" src=\"http:\/\/hansaplas.com\/wp-content\/uploads\/2026\/05\/PTFE-aerospace.jpg\" alt=\"\" width=\"768\" height=\"428\" srcset=\"https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/05\/PTFE-aerospace.jpg 768w, https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/05\/PTFE-aerospace-18x10.jpg 18w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">PEEK: Thanks to its high mechanical strength and lightweight nature, PEEK is used for lightweight structural brackets and in applications where metal cannot be used. <img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-23468 aligncenter\" src=\"http:\/\/hansaplas.com\/wp-content\/uploads\/2026\/05\/PEEK-aerospace.png\" alt=\"\" width=\"500\" height=\"500\" srcset=\"https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/05\/PEEK-aerospace.png 500w, https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/05\/PEEK-aerospace-150x150.png 150w, https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/05\/PEEK-aerospace-12x12.png 12w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/span><\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Oil_and_Gas\"><\/span><a href=\"https:\/\/hansaplas.com\/de\/anwendung\/ol-und-gas\/\"><span style=\"font-weight: 400;\">\u00d6l und Gas<\/span><\/a><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">PTFE: Similar to chemical processing environments, PTFE is widely used for corrosion-resistant valve seats, seals, and gaskets.<img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-23469 aligncenter\" src=\"http:\/\/hansaplas.com\/wp-content\/uploads\/2026\/05\/PTFE-chemical-resistent-seat.png\" alt=\"\" width=\"366\" height=\"366\" srcset=\"https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/05\/PTFE-chemical-resistent-seat.png 366w, https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/05\/PTFE-chemical-resistent-seat-150x150.png 150w, https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/05\/PTFE-chemical-resistent-seat-12x12.png 12w\" sizes=\"auto, (max-width: 366px) 100vw, 366px\" \/><\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">PEEK: Due to its strong creep resistance, PEEK is commonly used for anti-extrusion rings, support rings, and high-pressure structural components. <img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-23471 aligncenter\" src=\"http:\/\/hansaplas.com\/wp-content\/uploads\/2026\/05\/PEEK-Ring.png\" alt=\"\" width=\"450\" height=\"287\" srcset=\"https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/05\/PEEK-Ring.png 450w, https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/05\/PEEK-Ring-18x12.png 18w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/span><\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Semiconductor\"><\/span><a href=\"https:\/\/hansaplas.com\/de\/anwendung\/elektronik-und-halbleiter\/\"><span style=\"font-weight: 400;\">Semiconductor<\/span><\/a><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">PTFE: Used in ultra-pure chemical processing and low-contamination environments. Its chemical inertness prevents corrosion and contamination of process fluids, while its non-stick surface resists particle adhesion, ensuring high cleanliness.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">PEEK: Commonly used in wafer handling components that require repeated gripping and high stability. It provides high mechanical strength, low deformation, and also meets high cleanliness requirements. <img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-23418 aligncenter\" src=\"http:\/\/hansaplas.com\/wp-content\/uploads\/2026\/04\/PEEK-Wafer-Holder.png\" alt=\"\" width=\"482\" height=\"361\" srcset=\"https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/04\/PEEK-Wafer-Holder.png 482w, https:\/\/hansaplas.com\/wp-content\/uploads\/2026\/04\/PEEK-Wafer-Holder-16x12.png 16w\" sizes=\"auto, (max-width: 482px) 100vw, 482px\" \/><\/span><\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Hydrogen_energy_and_renewable_energy\"><\/span><span style=\"font-weight: 400;\">Hydrogen energy and renewable energy<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">PTFE: Offers excellent chemical resistance, low permeability, and outstanding sealing performance. It is widely used in seals for renewable energy systems exposed to aggressive chemicals, solving critical challenges in chemical resistance and sealing reliability.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">PEEK: Used in hydrogen compressors, high-pressure valve components, and structural parts. It addresses requirements for high strength, high temperature resistance, and long-term mechanical stability under demanding conditions.\u00a0<\/span><\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Scenarios_where_PTFE_cannot_replace_PEEK\"><\/span><span style=\"font-weight: 400;\">Scenarios where PTFE cannot replace PEEK<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Simply put, PTFE cannot replace PEEK because it cannot provide strong load-bearing performance at high temperatures. In applications that require both heat resistance and dimensional stability, PTFE is not sufficient.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\">\n<h4><span class=\"ez-toc-section\" id=\"Structural_load-bearing\"><\/span><span style=\"font-weight: 400;\">Structural load-bearing<\/span><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">For components like high-load bearings, industrial gears, and transmission parts, PTFE falls short. Its low mechanical strength and poor creep resistance mean it can deform under long-term stress.If the machine stops operating, it will reduce your production efficiency and increase costs.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\">\n<h4><span class=\"ez-toc-section\" id=\"High_temperature_load_conditions\"><\/span><span style=\"font-weight: 400;\">High temperature + load conditions<\/span><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">PTFE can withstand temperatures up to 260\u00b0C, but under load at high temperatures, it tends to deform. This makes it unsuitable for structural parts exposed to both heat and pressure, such as components near engines, aerospace supports, or high-temperature pump parts. In these cases, PEEK is the better long-term solution.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\">\n<h4><span class=\"ez-toc-section\" id=\"Precision_dimensional_control\"><\/span><span style=\"font-weight: 400;\">Precision dimensional control<\/span><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">In applications like wafer handling, where purity and dimensional stability are critical, PTFE is not ideal. Its high thermal expansion can lead to deformation, which may cause instability and even damage sensitive components like wafers.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\">\n<h4><span class=\"ez-toc-section\" id=\"Repeated_mechanical_motion\"><\/span><span style=\"font-weight: 400;\">Repeated mechanical motion<\/span><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">For dynamic, friction-based components, long-term wear is a concern. While PTFE has good wear resistance, it lacks resistance to mechanical fatigue. Continuous motion can accelerate wear, leading to deformation and higher maintenance costs.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span><span style=\"font-weight: 400;\">Abschluss<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">In summary, no single material is perfect for every application. The better choice between PTFE and PEEK depends on your specific project requirements.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">If your application prioritizes chemical resistance and low friction, PTFE is the right choice. If you need high load-bearing capacity, excellent dimensional stability, and resistance to extreme high temperatures, then PEEK is the better option.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Tell us your working conditions (temperature, load, chemical exposure), and our engineers will recommend the most cost-effective material for you.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"FAQ\"><\/span><span style=\"font-weight: 400;\">H\u00e4ufig gestellte Fragen<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Why_is_PEEK_more_expensive_than_PTFE\"><\/span><span style=\"font-weight: 400;\">Why is PEEK more expensive than PTFE?<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">PEEK has a complex molecular structure, which makes its raw material cost relatively high. It is also more difficult to process and requires advanced equipment. In addition, PEEK offers superior performance and is considered a structural material that can replace metal in some applications. Its production volume is relatively low, and market supply is more limited.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"How_do_I_choose_between_PTFE_and_PEEK\"><\/span><span style=\"font-weight: 400;\">How do I choose between PTFE and PEEK?<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">The choice should be based on your specific application. Key factors include temperature resistance, chemical resistance, required mechanical strength, and expected service life.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">If your application involves extreme conditions\u2014such as high temperature combined with heavy loads\u2014PEEK is the better choice. If you need corrosion resistance, low-temperature performance, and low friction, then PTFE is more suitable.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Is_PTFE_stronger_than_PEEK\"><\/span><span style=\"font-weight: 400;\">Is PTFE stronger than PEEK?<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">PEEK is significantly stronger than PTFE in terms of mechanical performance. PTFE has a tensile strength of about 20\u201335 MPa, while PEEK reaches around 90\u2013100 MPa. This makes PTFE a much softer material that is more prone to deformation under load or pressure.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Is_PTFE_more_chemically_resistant_than_PEEK\"><\/span><span style=\"font-weight: 400;\">Is PTFE more chemically resistant than PEEK?<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Yes, PTFE is chemically inert. PEEK also has good chemical resistance, but it can be attacked by strong oxidizing acids at high temperatures, such as concentrated sulfuric acid.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Can_PTFE_and_PEEK_both_operate_at_250%C2%B0C\"><\/span><span style=\"font-weight: 400;\">Can PTFE and PEEK both operate at 250\u00b0C?<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Yes, but PTFE cannot withstand pressure at high temperatures like 250\u00b0C. Under load, it deforms easily because of its very low mechanical strength.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">In contrast, PEEK can maintain excellent dimensional stability at around 250\u00b0C and still retain high mechanical strength, making it suitable for high-temperature structural applications under load.<\/span><\/p>","protected":false},"excerpt":{"rendered":"<p>PTFE and PEEK are both high-performance thermoplastics, but they offer different strengths, which means each one excels in different applications. Choosing between them comes down [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":23461,"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":"","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-23459","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 v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>PTFE vs PEEK : Which is better for your project? - Hansa<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/hansaplas.com\/de\/ptfe-vs-peek-which-is-better-for-your-project\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"PTFE vs PEEK : Which is better for your project? - Hansa\" \/>\n<meta property=\"og:description\" content=\"PTFE and PEEK are both high-performance thermoplastics, but they offer different strengths, which means each one excels in different applications. 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