{"id":650,"date":"2025-01-20T00:56:20","date_gmt":"2025-01-20T00:56:20","guid":{"rendered":"https:\/\/www.gelbotest.com\/?page_id=650"},"modified":"2025-07-03T07:30:27","modified_gmt":"2025-07-03T07:30:27","slug":"home","status":"publish","type":"page","link":"https:\/\/www.gelbotest.com\/fur\/","title":{"rendered":"Home"},"content":{"rendered":"<div data-elementor-type=\"wp-page\" data-elementor-id=\"650\" class=\"elementor elementor-650\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-bc08beb e-flex e-con-boxed e-con e-parent\" data-id=\"bc08beb\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-42e4182 e-con-full e-flex e-con e-child\" data-id=\"42e4182\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1f73a5c elementor-widget elementor-widget-heading\" data-id=\"1f73a5c\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h6 class=\"elementor-heading-title elementor-size-default\">Welcome to Cell instruments<\/h6>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9a362d8 elementor-widget elementor-widget-heading\" data-id=\"9a362d8\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Gelbo Flex Tester<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-74737fe elementor-widget elementor-widget-text-editor\" data-id=\"74737fe\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The <strong>Gelbo Flex Durability Test<\/strong> plays a critical role in evaluating the performance and durability of barrier films used in packaging applications. This test simulates the stresses these materials face during handling, shipping, and storage, helping manufacturers ensure that their films maintain their protective properties throughout the lifecycle of the packaged product. By understanding the Gelbo Flex test method and its compliance with <strong>ASTM F392<\/strong>, manufacturers can improve the reliability and longevity of their packaging materials.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-e01d0ce e-flex e-con-boxed e-con e-child\" data-id=\"e01d0ce\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2c96d58 elementor-widget__width-auto elementor-widget elementor-widget-button\" data-id=\"2c96d58\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/www.gelbotest.com\/fur\/contact\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Contact Us<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-34901ed elementor-widget__width-auto elementor-widget elementor-widget-button\" data-id=\"34901ed\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/www.gelbotest.com\/fur\/blog\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-icon\">\n\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-long-arrow-alt-right\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M313.941 216H12c-6.627 0-12 5.373-12 12v56c0 6.627 5.373 12 12 12h301.941v46.059c0 21.382 25.851 32.09 40.971 16.971l86.059-86.059c9.373-9.373 9.373-24.569 0-33.941l-86.059-86.059c-15.119-15.119-40.971-4.411-40.971 16.971V216z\"><\/path><\/svg>\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Learn More<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-eae6df4 e-flex e-con-boxed e-con e-parent\" data-id=\"eae6df4\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;shape_divider_bottom&quot;:&quot;waves&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-shape elementor-shape-bottom\" data-negative=\"false\">\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 1000 100\" preserveaspectratio=\"none\">\n\t<path class=\"elementor-shape-fill\" d=\"M421.9,6.5c22.6-2.5,51.5,0.4,75.5,5.3c23.6,4.9,70.9,23.5,100.5,35.7c75.8,32.2,133.7,44.5,192.6,49.7\tc23.6,2.1,48.7,3.5,103.4-2.5c54.7-6,106.2-25.6,106.2-25.6V0H0v30.3c0,0,72,32.6,158.4,30.5c39.2-0.7,92.8-6.7,134-22.4\tc21.2-8.1,52.2-18.2,79.7-24.2C399.3,7.9,411.6,7.5,421.9,6.5z\"\/>\n<\/svg>\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-60b8f6f e-con-full e-flex e-con e-child\" data-id=\"60b8f6f\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f0e80a2 elementor-widget elementor-widget-heading\" data-id=\"f0e80a2\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">What Is the Gelbo Flex Durability Test?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1ee59e5 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"1ee59e5\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9a446bf elementor-widget elementor-widget-text-editor\" data-id=\"9a446bf\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The <strong>Gelbo Flex Durability Test<\/strong> is a specialized method used to evaluate the ability of flexible barrier films to resist failure when subjected to repeated flexing and bending. These barrier films are commonly used in packaging applications to protect sensitive products from external factors such as moisture, air, and light.<\/p><p>During storage and transportation, barrier films are often subjected to mechanical stress that can cause them to crack, tear, or lose their protective qualities. The Gelbo Flex Test measures how well these materials can endure such stresses without compromising their barrier properties.<\/p><p>The test specifically measures the <strong>flex durability<\/strong> of the film, which refers to the material&#8217;s ability to withstand repetitive bending without exhibiting signs of failure such as cracking, pinholes, or a loss of sealing integrity. This type of testing is essential because, in real-world applications, packaging materials must endure repeated flexing during transport, stacking, or when the package is opened by consumers.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9f1454f elementor-widget elementor-widget-text-editor\" data-id=\"9f1454f\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>\u201c<strong>Flex durability<\/strong> is a key indicator of the performance of barrier films, as it directly correlates to their ability to protect products from damage and contamination. The Gelbo Flex Test is often used in industries such as food packaging, medical device packaging, and electronics packaging, where product integrity is critical.\u201d<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-5e306da e-flex e-con-boxed e-con e-parent\" data-id=\"5e306da\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;shape_divider_bottom&quot;:&quot;waves&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-shape elementor-shape-bottom\" data-negative=\"false\">\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 1000 100\" preserveaspectratio=\"none\">\n\t<path class=\"elementor-shape-fill\" d=\"M421.9,6.5c22.6-2.5,51.5,0.4,75.5,5.3c23.6,4.9,70.9,23.5,100.5,35.7c75.8,32.2,133.7,44.5,192.6,49.7\tc23.6,2.1,48.7,3.5,103.4-2.5c54.7-6,106.2-25.6,106.2-25.6V0H0v30.3c0,0,72,32.6,158.4,30.5c39.2-0.7,92.8-6.7,134-22.4\tc21.2-8.1,52.2-18.2,79.7-24.2C399.3,7.9,411.6,7.5,421.9,6.5z\"\/>\n<\/svg>\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-993fddc e-con-full e-flex e-con e-child\" data-id=\"993fddc\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-a4deb6c elementor-widget elementor-widget-image\" data-id=\"a4deb6c\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"600\" height=\"480\" src=\"https:\/\/www.gelbotest.com\/wp-content\/uploads\/2025\/02\/gelbo-flex-tester.webp\" class=\"attachment-full size-full wp-image-856\" alt=\"gelbo flex tester\" srcset=\"https:\/\/www.gelbotest.com\/wp-content\/uploads\/2025\/02\/gelbo-flex-tester.webp 600w, https:\/\/www.gelbotest.com\/wp-content\/uploads\/2025\/02\/gelbo-flex-tester-300x240.webp 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-43cb9af elementor-widget elementor-widget-heading\" data-id=\"43cb9af\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h5 class=\"elementor-heading-title elementor-size-default\">Gelbo Flex Tester<\/h5>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b8154eb elementor-widget elementor-widget-text-editor\" data-id=\"b8154eb\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Three\/Four Ststions<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-af77dea e-con-full e-flex e-con e-child\" data-id=\"af77dea\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-99b7251 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"99b7251\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9ff3b15 elementor-widget elementor-widget-heading\" data-id=\"9ff3b15\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Why Flex Durability Matters for Barrier Films<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e39e952 elementor-widget elementor-widget-text-editor\" data-id=\"e39e952\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Barrier films play a pivotal role in protecting the contents of a package from environmental factors, including moisture, gases, odors, and light. In industries like food packaging, medical devices, and pharmaceuticals, packaging materials must be durable and reliable to ensure the safety and integrity of the products inside. Without adequate flex durability, the barrier film may break down under physical stress, leading to potential product contamination, spoilage, or even product failure.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-e7c310b e-flex e-con-boxed e-con e-parent\" data-id=\"e7c310b\" data-element_type=\"container\" data-settings=\"{&quot;shape_divider_bottom&quot;:&quot;waves&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-shape elementor-shape-bottom\" data-negative=\"false\">\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 1000 100\" preserveaspectratio=\"none\">\n\t<path class=\"elementor-shape-fill\" d=\"M421.9,6.5c22.6-2.5,51.5,0.4,75.5,5.3c23.6,4.9,70.9,23.5,100.5,35.7c75.8,32.2,133.7,44.5,192.6,49.7\tc23.6,2.1,48.7,3.5,103.4-2.5c54.7-6,106.2-25.6,106.2-25.6V0H0v30.3c0,0,72,32.6,158.4,30.5c39.2-0.7,92.8-6.7,134-22.4\tc21.2-8.1,52.2-18.2,79.7-24.2C399.3,7.9,411.6,7.5,421.9,6.5z\"\/>\n<\/svg>\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-24cb111 elementor-widget elementor-widget-heading\" data-id=\"24cb111\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">How Does the Gelbo Flex Test Method Work?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d7b2758 elementor-widget elementor-widget-text-editor\" data-id=\"d7b2758\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The\u00a0<strong>Gelbo Test<\/strong>\u00a0uses a mechanical testing apparatus, commonly referred to as the\u00a0<strong>Gelbo Flex Tester<\/strong>, to apply repeated flexing motions to a sample of barrier film under controlled conditions. The test is designed to simulate real-world handling scenarios, including bending, twisting, and compressing the material.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5d3f15f elementor-widget elementor-widget-text-editor\" data-id=\"5d3f15f\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong style=\"font-style: inherit; text-align: var(--text-align); background-color: var(--ast-global-color-4); color: var(--ast-global-color-3);\">Gelbo Test Method Process:<\/strong><\/p><ol><li><strong>Sample Preparation<\/strong>: A sample of the barrier film, typically measuring 200 mm by 280 mm, is cut and placed onto the <strong>Gelbo Flex Tester<\/strong>. The sample is securely attached to the test device to ensure it remains in position during the testing process.<\/li><li><strong>Test Motion<\/strong>: The Gelbo Flex Tester simulates two types of motions:<ul><li><strong>Twisting<\/strong>: The film undergoes a twisting motion of up to 440\u00b0 in the first 90 mm of the stroke. This simulates the forces the film may experience when being manipulated or handled during transport.<\/li><li><strong>Compression<\/strong>: After the twisting motion, the film is subjected to horizontal compression. This action mimics the pressure exerted on the film when stacked with other packages or when the film is compressed during the handling of goods.<\/li><\/ul><\/li><li><strong>Flexing Cycle<\/strong>: The film is flexed repeatedly according to a predefined cycle. The typical cycle frequency is 45 cycles per minute. Different test modes can be selected based on the testing requirements. These modes vary in terms of duration and the number of cycles, ranging from a few minutes to one hour.<\/li><li><strong>Failure Detection<\/strong>: During the test, the film is monitored for signs of failure, including the development of cracks, pinholes, or loss of barrier properties. The number of cycles required for failure to occur is recorded, providing insight into the material&#8217;s overall durability.<\/li><li><strong>Test Modes<\/strong>: The <strong>Gelbo Flex Tester<\/strong> offers various modes that simulate different handling conditions:<ul><li><strong>Mode A<\/strong>: Full flex for 1 hour (2,700 cycles)<\/li><li><strong>Mode B<\/strong>: Full flex for 20 minutes (900 cycles)<\/li><li><strong>Mode C<\/strong>: Full flex for 6 minutes (270 cycles)<\/li><li><strong>Mode D<\/strong>: Full flex for 20 cycles<\/li><li><strong>Mode E<\/strong>: Partial flex for 20 cycles<\/li><\/ul><\/li><li><strong><strong>Evaluating Test Results\uff1a<\/strong><\/strong><p>After performing the Gelbo Flex Durability Test, the next step is to evaluate the material for signs of failure, such as cracks or pinholes. If the material is made of multiple layers (multi-ply structure) and one or more layers show signs of damage, further testing may be needed. For example, <strong>permeation tests<\/strong> (using gases or water vapor) can help determine if the film&#8217;s protective barrier has been compromised due to the flexing. Additional methods can also be used to check for pinholes that may have formed.<\/p><\/li><\/ol>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4efe94a elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"4efe94a\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>\u201cIt&#8217;s important to note that the test results should show an appropriate number of holes in the material. If there are too many\u2014usually more than 50\u2014it can be hard to assess the material&#8217;s overall performance, and the test might be considered invalid. On the other hand, if the material has very few holes (fewer than five), it may not provide enough information to accurately judge its durability.\u201d<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-dca7d66 e-flex e-con-boxed e-con e-parent\" data-id=\"dca7d66\" data-element_type=\"container\" data-settings=\"{&quot;shape_divider_bottom&quot;:&quot;waves&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-shape elementor-shape-bottom\" data-negative=\"false\">\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 1000 100\" preserveaspectratio=\"none\">\n\t<path class=\"elementor-shape-fill\" d=\"M421.9,6.5c22.6-2.5,51.5,0.4,75.5,5.3c23.6,4.9,70.9,23.5,100.5,35.7c75.8,32.2,133.7,44.5,192.6,49.7\tc23.6,2.1,48.7,3.5,103.4-2.5c54.7-6,106.2-25.6,106.2-25.6V0H0v30.3c0,0,72,32.6,158.4,30.5c39.2-0.7,92.8-6.7,134-22.4\tc21.2-8.1,52.2-18.2,79.7-24.2C399.3,7.9,411.6,7.5,421.9,6.5z\"\/>\n<\/svg>\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-9b5e8aa e-con-full e-flex e-con e-child\" data-id=\"9b5e8aa\" data-element_type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-9f2391b e-flex e-con-boxed e-con e-child\" data-id=\"9f2391b\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-a6f9734 e-con-full e-flex e-con e-child\" data-id=\"a6f9734\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6b6458a elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"6b6458a\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-35b887f elementor-widget elementor-widget-heading\" data-id=\"35b887f\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">ASTM F392: Flex Durability of Flexible Barrier Materials<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d674011 elementor-widget elementor-widget-text-editor\" data-id=\"d674011\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>ASTM F392<\/strong> is the international standard that outlines the test method for <strong>flex durability<\/strong> in flexible barrier materials. It provides the guidelines for testing materials like films, composites, and coatings used in packaging to ensure they can withstand repeated flexing without failure.<\/p><h3><strong>Key Requirements of ASTM F392:<\/strong><\/h3>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-c5a2004 e-con-full e-flex e-con e-child\" data-id=\"c5a2004\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-845a6f2 elementor-align-right elementor-mobile-align-left elementor-widget elementor-widget-button\" data-id=\"845a6f2\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/www.gelbotest.com\/fur\/astm-f392\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">More about ASTM F392<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-d993fd3 e-flex e-con-boxed e-con e-child\" data-id=\"d993fd3\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-d5b5a51 e-con-full e-flex e-con e-child\" data-id=\"d5b5a51\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3a6fc06 elementor-widget elementor-widget-image\" data-id=\"3a6fc06\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"368\" height=\"240\" src=\"https:\/\/www.gelbotest.com\/wp-content\/uploads\/2025\/02\/flex-durability-1.webp\" class=\"attachment-full size-full wp-image-860\" alt=\"\" srcset=\"https:\/\/www.gelbotest.com\/wp-content\/uploads\/2025\/02\/flex-durability-1.webp 368w, https:\/\/www.gelbotest.com\/wp-content\/uploads\/2025\/02\/flex-durability-1-300x196.webp 300w\" sizes=\"(max-width: 368px) 100vw, 368px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-82604ad elementor-widget elementor-widget-heading\" data-id=\"82604ad\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Sample Dimensions<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5851bdc elementor-widget elementor-widget-text-editor\" data-id=\"5851bdc\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The standard specifies that samples should be 200 mm by 280 mm in size to ensure consistency across tests.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-2528366 e-con-full e-flex e-con e-child\" data-id=\"2528366\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-9daa531 elementor-widget elementor-widget-image\" data-id=\"9daa531\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"368\" height=\"240\" src=\"https:\/\/www.gelbotest.com\/wp-content\/uploads\/2025\/02\/gelbo-flex.webp\" class=\"attachment-full size-full wp-image-862\" alt=\"\" srcset=\"https:\/\/www.gelbotest.com\/wp-content\/uploads\/2025\/02\/gelbo-flex.webp 368w, https:\/\/www.gelbotest.com\/wp-content\/uploads\/2025\/02\/gelbo-flex-300x196.webp 300w\" sizes=\"(max-width: 368px) 100vw, 368px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9c41be4 elementor-widget elementor-widget-heading\" data-id=\"9c41be4\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Flex Angle<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-792dfef elementor-widget elementor-widget-text-editor\" data-id=\"792dfef\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The test should be conducted with a flex angle of 440\u00b0, which simulates the forces that materials experience during handling.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-d113804 e-con-full e-flex e-con e-child\" data-id=\"d113804\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1fed4dd elementor-widget elementor-widget-image\" data-id=\"1fed4dd\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"368\" height=\"240\" src=\"https:\/\/www.gelbotest.com\/wp-content\/uploads\/2025\/02\/flex-durability-tester.webp\" class=\"attachment-full size-full wp-image-861\" alt=\"flex durability tester\" srcset=\"https:\/\/www.gelbotest.com\/wp-content\/uploads\/2025\/02\/flex-durability-tester.webp 368w, https:\/\/www.gelbotest.com\/wp-content\/uploads\/2025\/02\/flex-durability-tester-300x196.webp 300w\" sizes=\"(max-width: 368px) 100vw, 368px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-98824ea elementor-widget elementor-widget-heading\" data-id=\"98824ea\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Cycle Frequency<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d29768a elementor-widget elementor-widget-text-editor\" data-id=\"d29768a\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The standard requires a cycle frequency of 45 cycles per minute to simulate normal handling conditions.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-9a00ad3 e-con-full e-flex e-con e-child\" data-id=\"9a00ad3\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5ce999b elementor-widget elementor-widget-image\" data-id=\"5ce999b\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"368\" height=\"240\" src=\"https:\/\/www.gelbotest.com\/wp-content\/uploads\/2025\/02\/gelbo-flex-test-method.webp\" class=\"attachment-full size-full wp-image-863\" alt=\"gelbo flex test method\" srcset=\"https:\/\/www.gelbotest.com\/wp-content\/uploads\/2025\/02\/gelbo-flex-test-method.webp 368w, https:\/\/www.gelbotest.com\/wp-content\/uploads\/2025\/02\/gelbo-flex-test-method-300x196.webp 300w\" sizes=\"(max-width: 368px) 100vw, 368px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-247bfbc elementor-widget elementor-widget-heading\" data-id=\"247bfbc\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Test Conditions<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6049623 elementor-widget elementor-widget-text-editor\" data-id=\"6049623\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>ASTM F392 defines various testing modes, allowing manufacturers to simulate different stress conditions by adjusting the duration and number of cycles.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-85de00a e-flex e-con-boxed e-con e-parent\" data-id=\"85de00a\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-a350e09 e-con-full e-flex e-con e-child\" data-id=\"a350e09\" data-element_type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-2c1b657 e-flex e-con-boxed e-con e-child\" data-id=\"2c1b657\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-82daac1 e-con-full e-flex e-con e-child\" data-id=\"82daac1\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b6f9803 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"b6f9803\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f247338 elementor-widget elementor-widget-heading\" data-id=\"f247338\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Flex Durability Tester for Barrier Film<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-5617f48 e-con-full e-flex e-con e-child\" data-id=\"5617f48\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b999dbf elementor-widget elementor-widget-text-editor\" data-id=\"b999dbf\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The <strong>Flex Durability Tester<\/strong>\u00a0is the primary instrument used to perform the <strong>flex durability test<\/strong>. This device uses advanced mechanical systems to replicate the real-world stresses that barrier films experience during transport and handling. Below are the key features of the <strong>Gelbo Flex Tester<\/strong>:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-94acf7d elementor-button-align-stretch elementor-widget elementor-widget-form\" data-id=\"94acf7d\" data-element_type=\"widget\" data-settings=\"{&quot;button_width&quot;:&quot;20&quot;,&quot;step_next_label&quot;:&quot;Next&quot;,&quot;step_previous_label&quot;:&quot;Previous&quot;,&quot;step_type&quot;:&quot;number_text&quot;,&quot;step_icon_shape&quot;:&quot;circle&quot;}\" data-widget_type=\"form.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<form class=\"elementor-form\" method=\"post\" name=\"New Form\" action=\"\">\n\t\t\t<input type=\"hidden\" name=\"post_id\" value=\"650\"\/>\n\t\t\t<input type=\"hidden\" name=\"form_id\" value=\"94acf7d\"\/>\n\t\t\t<input type=\"hidden\" name=\"referer_title\" value=\"Gelbo Test\" \/>\n\n\t\t\t\n\t\t\t<div class=\"elementor-form-fields-wrapper elementor-labels-\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-text elementor-field-group elementor-column elementor-field-group-name elementor-col-100 elementor-field-required\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-name\" class=\"elementor-field-label elementor-screen-only\">\n\t\t\t\t\t\t\t\tName\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<input size=\"1\" type=\"text\" name=\"form_fields[name]\" id=\"form-field-name\" class=\"elementor-field elementor-size-sm  elementor-field-textual\" placeholder=\"Name\" required=\"required\" aria-required=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-text elementor-field-group elementor-column elementor-field-group-field_5978010 elementor-col-100\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-field_5978010\" class=\"elementor-field-label elementor-screen-only\">\n\t\t\t\t\t\t\t\tCompany\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<input size=\"1\" type=\"text\" name=\"form_fields[field_5978010]\" id=\"form-field-field_5978010\" class=\"elementor-field elementor-size-sm  elementor-field-textual\" placeholder=\"Company\">\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-email elementor-field-group elementor-column elementor-field-group-email elementor-col-100 elementor-field-required\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-email\" class=\"elementor-field-label elementor-screen-only\">\n\t\t\t\t\t\t\t\tEmail\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<input size=\"1\" type=\"email\" name=\"form_fields[email]\" id=\"form-field-email\" class=\"elementor-field elementor-size-sm  elementor-field-textual\" placeholder=\"Email\" required=\"required\" aria-required=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-textarea elementor-field-group elementor-column elementor-field-group-message elementor-col-100\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-message\" class=\"elementor-field-label elementor-screen-only\">\n\t\t\t\t\t\t\t\tMessage\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t<textarea class=\"elementor-field-textual elementor-field  elementor-size-sm\" name=\"form_fields[message]\" id=\"form-field-message\" rows=\"4\" placeholder=\"Message\"><\/textarea>\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-recaptcha elementor-field-group elementor-column elementor-field-group-field_988e6c0 elementor-col-100\">\n\t\t\t\t\t<div class=\"elementor-field\" id=\"form-field-field_988e6c0\"><div class=\"elementor-g-recaptcha\" data-sitekey=\"6Lf_P4srAAAAAG9mCHm54RcYdxGLoxF6So6yIk0Q\" data-type=\"v2_checkbox\" data-theme=\"light\" data-size=\"normal\"><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-group elementor-column elementor-field-type-submit elementor-col-20 e-form__buttons\">\n\t\t\t\t\t<button class=\"elementor-button elementor-size-sm\" type=\"submit\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Send<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/button>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<input type=\"hidden\" name=\"trp-form-language\" value=\"fur\"\/><\/form>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-93fda71 e-con-full e-flex e-con e-child\" data-id=\"93fda71\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-61299f6 elementor-widget elementor-widget-image\" data-id=\"61299f6\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"284\" height=\"360\" src=\"https:\/\/www.gelbotest.com\/wp-content\/uploads\/2025\/02\/gelbo-test.webp\" class=\"attachment-full size-full wp-image-864\" alt=\"gelbo test\" srcset=\"https:\/\/www.gelbotest.com\/wp-content\/uploads\/2025\/02\/gelbo-test.webp 284w, https:\/\/www.gelbotest.com\/wp-content\/uploads\/2025\/02\/gelbo-test-237x300.webp 237w\" sizes=\"(max-width: 284px) 100vw, 284px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cef75c7 elementor-widget elementor-widget-image\" data-id=\"cef75c7\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"284\" height=\"200\" src=\"https:\/\/www.gelbotest.com\/wp-content\/uploads\/2025\/02\/astm-f392-flex-durability.webp\" class=\"attachment-full size-full wp-image-866\" alt=\"astm f392 flex durability\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-ed5b548 e-con-full e-flex e-con e-child\" data-id=\"ed5b548\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7b34aab elementor-widget elementor-widget-image\" data-id=\"7b34aab\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"284\" height=\"200\" src=\"https:\/\/www.gelbotest.com\/wp-content\/uploads\/2025\/02\/gelbo-test-method.webp\" class=\"attachment-full size-full wp-image-865\" alt=\"gelbo test method\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e05fd4e elementor-widget elementor-widget-image\" data-id=\"e05fd4e\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"284\" height=\"360\" src=\"https:\/\/www.gelbotest.com\/wp-content\/uploads\/2025\/02\/astm-f392-gelbo-flex-test-method.webp\" class=\"attachment-full size-full wp-image-867\" alt=\"astm f392 gelbo flex test method\" srcset=\"https:\/\/www.gelbotest.com\/wp-content\/uploads\/2025\/02\/astm-f392-gelbo-flex-test-method.webp 284w, https:\/\/www.gelbotest.com\/wp-content\/uploads\/2025\/02\/astm-f392-gelbo-flex-test-method-237x300.webp 237w\" sizes=\"(max-width: 284px) 100vw, 284px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-03380c1 e-con-full e-flex e-con e-child\" data-id=\"03380c1\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-842e334 elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"842e334\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ol><li><strong>PLC Control<\/strong>: The tester is equipped with programmable logic controller (PLC) control, which allows for precise control over test conditions, ensuring accuracy and repeatability.<\/li><li><strong>Touch Screen Interface<\/strong>: An intuitive human-machine interface (HMI) touch screen simplifies the operation of the machine, making it easy for users to select test modes, set parameters, and monitor the test process.<\/li><li><strong>Multiple Test Stations<\/strong>: Some models of the Gelbo Flex Tester offer multiple test stations, enabling simultaneous testing of several samples, increasing productivity.<\/li><li><strong>Test Modes<\/strong>: The machine provides several pre-programmed test modes (A, B, C, D, E) that allow for flexibility in testing various materials and conditions.<\/li><li><strong>Data Output<\/strong>: The tester is equipped with a microprinter to generate test reports, providing manufacturers with clear documentation of test results for further analysis and quality control.<\/li><\/ol>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0e006f2 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"0e006f2\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b63a46b elementor-widget elementor-widget-heading\" data-id=\"b63a46b\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">FAQs<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-0356017 e-flex e-con-boxed e-con e-child\" data-id=\"0356017\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-8b83c21 elementor-widget elementor-widget-n-accordion\" data-id=\"8b83c21\" data-element_type=\"widget\" data-settings=\"{&quot;default_state&quot;:&quot;expanded&quot;,&quot;max_items_expended&quot;:&quot;one&quot;,&quot;n_accordion_animation_duration&quot;:{&quot;unit&quot;:&quot;ms&quot;,&quot;size&quot;:400,&quot;sizes&quot;:[]}}\" data-widget_type=\"nested-accordion.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"e-n-accordion\" aria-label=\"Accordion. Open links with Enter or Space, close with Escape, and navigate with Arrow Keys\">\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-1460\" class=\"e-n-accordion-item\" open>\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"1\" tabindex=\"0\" aria-expanded=\"true\" aria-controls=\"e-n-accordion-item-1460\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> 1. What is the Gelbo Flex Durability Test? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1460\" class=\"elementor-element elementor-element-a3a1a43 e-con-full e-flex e-con e-child\" data-id=\"a3a1a43\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-36393f4 elementor-widget elementor-widget-text-editor\" data-id=\"36393f4\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The <strong>Gelbo Flex Durability Test<\/strong> evaluates how well barrier films resist failure from repeated bending, twisting, and compression, simulating real-world handling stresses.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-1461\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"2\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-1461\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> 2. How does the Gelbo Flex Test Method work? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1461\" class=\"elementor-element elementor-element-bbdf632 e-con-full e-flex e-con e-child\" data-id=\"bbdf632\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6c6f39a elementor-widget elementor-widget-text-editor\" data-id=\"6c6f39a\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The test involves subjecting the film to twisting and horizontal compression motions, and then monitoring the film for cracks, pinholes, or loss of barrier integrity after multiple cycles.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-1462\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"3\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-1462\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> 3. Why is flex durability important for barrier films? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1462\" class=\"elementor-element elementor-element-bc909f4 e-con-full e-flex e-con e-child\" data-id=\"bc909f4\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-973f7b3 elementor-widget elementor-widget-text-editor\" data-id=\"973f7b3\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Flex durability ensures that barrier films maintain their protective properties during transport and handling, preventing product contamination and spoilage.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-1463\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"4\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-1463\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> 4. What is ASTM F392? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1463\" class=\"elementor-element elementor-element-57df045 e-flex e-con-boxed e-con e-child\" data-id=\"57df045\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-384704d elementor-widget elementor-widget-text-editor\" data-id=\"384704d\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li>ASTM F392 is a standard test method that outlines the procedure for testing the flex durability of flexible barrier materials, providing consistency in the evaluation process.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-1464\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"5\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-1464\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> 5. How does the Gelbo Flex Tester help improve packaging quality? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1464\" class=\"elementor-element elementor-element-873fedb e-flex e-con-boxed e-con e-child\" data-id=\"873fedb\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-90b99ce elementor-widget elementor-widget-text-editor\" data-id=\"90b99ce\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The tester identifies weak points in barrier films, allowing manufacturers to adjust material design and improve packaging performance, ensuring better product protection during distribution.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Welcome to Cell instruments Gelbo Flex Tester The Gelbo Flex Durability Test plays a critical role in evaluating the performance and durability of barrier films used in packaging applications. This test simulates the stresses these materials face during handling, shipping, and storage, helping manufacturers ensure that their films maintain their protective properties throughout the lifecycle [&hellip;]<\/p>","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"no-sidebar","site-content-layout":"page-builder","ast-site-content-layout":"full-width-container","site-content-style":"unboxed","site-sidebar-style":"unboxed","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":"disabled","ast-breadcrumbs-content":"disabled","ast-featured-img":"disabled","footer-sml-layout":"","theme-transparent-header-meta":"enabled","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":"","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":""},"class_list":["post-650","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.4 - 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