{"id":14288,"date":"2026-06-17T10:43:45","date_gmt":"2026-06-17T13:43:45","guid":{"rendered":"https:\/\/www.amino.com.br\/?p=14288"},"modified":"2026-06-17T11:02:19","modified_gmt":"2026-06-17T14:02:19","slug":"performanceflexible","status":"publish","type":"post","link":"https:\/\/www.amino.com.br\/en\/blog\/performanceflexible\/","title":{"rendered":"Stability in Flexible Foams: Why Two Foams with the Same Density Can Perform Differently"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">In the flexible foam industry, density is usually one of the first pieces of information analyzed in a technical specification. However, those who work with development, production, or quality control know that this parameter, on its own, does not guarantee the foam\u2019s behavior in practice.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">It is relatively common to find foams with similar densities showing completely different results in comfort, finish, durability, and production stability.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The reason lies in a factor that does not always appear clearly in technical data sheets: system stability.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">More than a laboratory characteristic, stability is what makes it possible to transform a good formulation into a consistent production process.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>The challenge is not producing a good foam once<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Developing a foam that meets performance requirements in the laboratory is important.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">But the real industrial challenge is reproducing that same result every day, regardless of small process variations.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In practice, production is subject to factors such as:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022 ambient temperature;<br>\u2022 humidity;<br>\u2022 variation in raw materials;<br>\u2022 equipment conditions;<br>\u2022 operational adjustments.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">When a formulation has low robustness, these fluctuations can generate significant differences in the final result.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This is when stability stops being just a technical concept and starts directly impacting the operation.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>The invisible cost of instability<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The effects of instability do not always appear immediately.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Often, they emerge gradually and end up being attributed to different causes within the factory.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The most common symptoms include:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022 variation in block height;<br>\u2022 hardness differences between batches;<br>\u2022 irregular density distribution;<br>\u2022 changes in cellular structure;<br>\u2022 increase in scrap;<br>\u2022 constant need for process adjustments.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">When analyzed individually, these events may seem small. Together, however, they represent significant losses in productivity and yield.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">That is why companies focused on efficiency have started treating stability as a strategic variable, not just an operational one.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>The role of cellular structure in foam consistency<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A foam can present the specified density and still not deliver the expected behavior.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This happens because the cellular structure also directly influences the way load is distributed throughout the material.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">When cell formation occurs uniformly, the foam tends to present:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022 more predictable behavior;<br>\u2022 better stress distribution;<br>\u2022 greater physical regularity;<br>\u2022 more consistent finish.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">On the other hand, irregularities in the structure can generate noticeable differences between batches or even within the same block.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">That is precisely why stability and cellular structure go hand in hand.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Stability begins before production<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">There is a common perception that stability depends exclusively on machine adjustment or factory operation.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Although these factors are important, stability begins much earlier: in the engineering of the formulation.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The choice of components and the balance between them directly influence the system\u2019s ability to absorb small process variations without compromising the final result.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Among the factors that influence this are:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022 composition of the polyols;<br>\u2022 catalytic system;<br>\u2022 stabilizing silicones;<br>\u2022 performance additives;<br>\u2022 reactive behavior of the formulation.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The more robust this set is, the lower the foam\u2019s sensitivity to production conditions tends to be.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Why is this so important for each application?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The impacts of stability vary according to the final product.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>In mattresses<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Foam consistency directly influences support, comfort, and durability as perceived by the consumer.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Small variations can result in differences in feel between batches of the same product.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>In pillows<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The uniformity of the cellular structure helps maintain characteristics such as ventilation, shape recovery, and thermal comfort.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>In insoles<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Formulation stability helps ensure consistent behavior under repeated compression and impact cycles.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>In seats and upholstery<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Repeatability is essential to ensure that the comfort perceived by the user is maintained across different production batches.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Repeatability: one of the industry\u2019s most valuable assets<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">When a company is able to produce the same foam consistently, it gains much more than quality.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">It gains predictability.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This predictability translates into:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022 lower scrap rates;<br>\u2022 reduction of operational adjustments;<br>\u2022 better use of raw materials;<br>\u2022 greater confidence in the final product;<br>\u2022 more safety for the customer.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">That is why repeatability is one of the main indicators of the technical maturity of a flexible foam system.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>How Amino works on the stability of flexible systems<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">At Amino, stability is not treated as a consequence of the process. It is part of the formulation development from the very beginning.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The combination of PU systems, additives, and technical support makes it possible to build solutions that seek to deliver not only adequate physical properties, but also consistent behavior throughout production.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This approach is applied to the different segments served by the Comfort Line, simultaneously considering:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022 application requirements;<br>\u2022 expected performance;<br>\u2022 reactive behavior;<br>\u2022 the customer\u2019s operational reality.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The objective is to reduce variability and increase production predictability, allowing the performance observed during development to be reproduced on an industrial scale.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\">When two foams have the same density, this does not mean they will behave in the same way.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The stability of the formulation, the cellular structure, and the robustness of the system have a direct influence on the consistency of the product and the process.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Behind a foam that delivers comfort, durability, and repeatability, there is a balanced combination of development, process control, and technical knowledge.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">It is precisely this combination that transforms a formulation into a reliable industrial solution.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\">Do you want to increase the stability and predictability of your flexible foam production?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Talk to Amino\u2019s technical team and discover how our systems can contribute to more robust and consistent processes.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><\/h3>\n\n\n\r\n\r\n\t<!-- WELCOME -->\r\n\t<div class=\"mx-auto shadow bg-white\" style=\"border-radius: 5px; overflow: hidden;\">\t\r\n\t\t<div class=\"d-flex flex-column\">\r\n\t\t\t<div class=\"row g-0  align-items-stretch\">\r\n\t\t\t\t<div class=\"col-12 col-md-6 d-flex align-items-stretch\">\r\n\t\t\t\t\t<div class=\"h-100 w-100\">\r\n\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/www.amino.com.br\/wp-content\/uploads\/2026\/03\/mockup-confort-pt-redimensionado-para-1400x1703-1-1.png\" alt=\"Cadastre-se e solicite o cat\u00e1logo de solu\u00e7\u00f5es comfort\" class=\"d-block w-100 h-100 img-ebook-full\" style=\"object-fit:cover;object-position: center center;\">\r\n\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\r\n\r\n\t\t\t\t<div class=\"col-12 col-md-6 bg-gradient\">\r\n\t\t\t\t\t<div class=\"px-8 py-5\">\r\n\t\t\t\t\t\t<h2 class=\"fs-3 mb-6\" style=\"font-weight: 600;\">\r\n\t\t\t\t\t\t\tCadastre-se e solicite o cat\u00e1logo de solu\u00e7\u00f5es comfort\t\t\t\t\t\t<\/h2>\r\n\r\n\t\t\t\t\t\t<div>\r\n\t\t\t\t\t\t\t<div class=\"form-assistente-virtual cf7-form\">\r\n    \n<div class=\"wpcf7 no-js\" id=\"wpcf7-f12877-o1\" lang=\"pt-BR\" dir=\"ltr\" data-wpcf7-id=\"12877\">\n<div class=\"screen-reader-response\"><p role=\"status\" aria-live=\"polite\" aria-atomic=\"true\"><\/p> <ul><\/ul><\/div>\n<form action=\"\/en\/wp-json\/wp\/v2\/posts\/14288#wpcf7-f12877-o1\" method=\"post\" class=\"wpcf7-form init\" id=\"catalogo-pt-comfort\" aria-label=\"Formul\u00e1rios de contato\" novalidate=\"novalidate\" data-status=\"init\">\n<fieldset class=\"hidden-fields-container\"><input type=\"hidden\" name=\"_wpcf7\" value=\"12877\" \/><input type=\"hidden\" name=\"_wpcf7_version\" value=\"6.2.4.1\" \/><input type=\"hidden\" name=\"_wpcf7_locale\" value=\"pt_BR\" \/><input type=\"hidden\" name=\"_wpcf7_unit_tag\" value=\"wpcf7-f12877-o1\" \/><input type=\"hidden\" name=\"_wpcf7_container_post\" value=\"0\" \/><input type=\"hidden\" name=\"_wpcf7_posted_data_hash\" value=\"\" \/><input type=\"hidden\" name=\"_wpcf7cf_hidden_group_fields\" value=\"[]\" \/><input type=\"hidden\" name=\"_wpcf7cf_hidden_groups\" value=\"[]\" \/><input type=\"hidden\" name=\"_wpcf7cf_visible_groups\" value=\"[]\" \/><input type=\"hidden\" name=\"_wpcf7cf_repeaters\" value=\"[]\" \/><input type=\"hidden\" name=\"_wpcf7cf_steps\" value=\"{}\" \/><input type=\"hidden\" name=\"_wpcf7cf_options\" value=\"{&quot;form_id&quot;:12877,&quot;conditions&quot;:[{&quot;then_field&quot;:&quot;grupo-mercado&quot;,&quot;and_rules&quot;:[{&quot;if_field&quot;:&quot;cliente-amino&quot;,&quot;operator&quot;:&quot;equals&quot;,&quot;if_value&quot;:&quot;N\\u00e3o&quot;}]}],&quot;settings&quot;:{&quot;animation&quot;:&quot;yes&quot;,&quot;animation_intime&quot;:200,&quot;animation_outtime&quot;:200,&quot;conditions_ui&quot;:&quot;normal&quot;,&quot;notice_dismissed&quot;:false,&quot;repeater_remove_button&quot;:&quot;bottom&quot;,&quot;notice_dismissed_rollback-cf7-6.1.6&quot;:true}}\" \/><input type=\"hidden\" name=\"_wpcf7_recaptcha_response\" value=\"\" \/>\n<\/fieldset>\n<p><span class=\"wpcf7-form-control-wrap\" data-name=\"nome\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required form-control\" autocomplete=\"name\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Nome\" value=\"\" type=\"text\" name=\"nome\" \/><\/span>\n<\/p>\n<p><span class=\"wpcf7-form-control-wrap\" data-name=\"empresa\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required form-control\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Empresa\" value=\"\" type=\"text\" name=\"empresa\" \/><\/span>\n<\/p>\n<p><span class=\"wpcf7-form-control-wrap\" data-name=\"cargo\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required form-control\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Cargo\" value=\"\" type=\"text\" name=\"cargo\" \/><\/span>\n<\/p>\n<p><span class=\"wpcf7-form-control-wrap\" data-name=\"email\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-email wpcf7-validates-as-required wpcf7-text wpcf7-validates-as-email form-control\" autocomplete=\"email\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Email\" value=\"\" type=\"email\" name=\"email\" \/><\/span>\n<\/p>\n<div style=\"display: none;\">\n\t<p><span id=\"wpcf7-6aeae694393b3-wrapper\" class=\"wpcf7-form-control-wrap cf7apps-honeypot-wrap email-user-wrap\" style=\"position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;\"><input type=\"hidden\" name=\"email-user-time-start\" value=\"1793779348\"><input type=\"hidden\" name=\"email-user-time-check\" value=\"4\"><label for=\"wpcf7-6aeae694393b3-field\" class=\"hp-message\">Please leave this field empty.<\/label><input id=\"wpcf7-6aeae694393b3-field\"  class=\"wpcf7-form-control wpcf7-text\" type=\"text\" name=\"email-user\" value=\"\" autocomplete=\"new-password\" tabindex=\"1000\" data-cf7apps-tabindex=\"1000\" \/><\/span>\n\t<\/p>\n<\/div>\n<p><span class=\"wpcf7-form-control-wrap\" data-name=\"telefone\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-tel wpcf7-validates-as-required wpcf7-text wpcf7-validates-as-tel form-control\" autocomplete=\"tel\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"DDD + Telefone\" value=\"\" type=\"tel\" name=\"telefone\" \/><\/span>\n<\/p>\n<p><span class=\"wpcf7-form-control-wrap\" data-name=\"pais\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required form-control\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Pa\u00eds\" value=\"\" type=\"text\" name=\"pais\" \/><\/span>\n<\/p>\n<p><span class=\"wpcf7-form-control-wrap\" data-name=\"cliente-amino\"><select class=\"wpcf7-form-control wpcf7-select wpcf7-validates-as-required form-control\" aria-required=\"true\" aria-invalid=\"false\" name=\"cliente-amino\"><option value=\"\">Voc\u00ea \u00e9 cliente Amino?<\/option><option value=\"Sim\">Sim<\/option><option value=\"N\u00e3o\">N\u00e3o<\/option><\/select><\/span>\n<\/p>\n<div data-id=\"grupo-mercado\" data-orig_data_id=\"grupo-mercado\" data-clear_on_hide class=\"\" data-class=\"wpcf7cf_group\">\n\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"mercado\"><select class=\"wpcf7-form-control wpcf7-select wpcf7-validates-as-required form-control\" aria-required=\"true\" aria-invalid=\"false\" name=\"mercado\"><option value=\"\">Em qual mercado sua empresa atua?<\/option><option value=\"Automotivo e mobilidade\">Automotivo e mobilidade<\/option><option value=\"Cal\u00e7ados, palmilhas e moda\">Cal\u00e7ados, palmilhas e moda<\/option><option value=\"Constru\u00e7\u00e3o civil, infraestrutura e isolamento\">Constru\u00e7\u00e3o civil, infraestrutura e isolamento<\/option><option value=\"Conforto, espumas e bens de consumo\">Conforto, espumas e bens de consumo<\/option><option value=\"Refrigera\u00e7\u00e3o e cadeia fria\">Refrigera\u00e7\u00e3o e cadeia fria<\/option><option value=\"Minera\u00e7\u00e3o e ind\u00fastria pesada\">Minera\u00e7\u00e3o e ind\u00fastria pesada<\/option><option value=\"Aplica\u00e7\u00f5es industriais e pe\u00e7as t\u00e9cnicas\">Aplica\u00e7\u00f5es industriais e pe\u00e7as t\u00e9cnicas<\/option><option value=\"Outro segmento \/ ainda n\u00e3o sei\">Outro segmento \/ ainda n\u00e3o sei<\/option><\/select><\/span>\n\t<\/p>\n<\/div>\n<p><input class=\"wpcf7-form-control wpcf7-submit has-spinner btn btn-primary\" type=\"submit\" value=\"Inicie uma conversa\" \/>\n<\/p>\n<input class=\"wpcf7-form-control wpcf7-hidden\" value=\"\" type=\"hidden\" name=\"utm_source\" \/>\n<input class=\"wpcf7-form-control wpcf7-hidden\" value=\"\" type=\"hidden\" name=\"utm_medium\" \/>\n<input class=\"wpcf7-form-control wpcf7-hidden\" value=\"\" type=\"hidden\" name=\"utm_campaign\" \/>\n<input class=\"wpcf7-form-control wpcf7-hidden\" value=\"\" type=\"hidden\" name=\"utm_term\" \/>\n<input class=\"wpcf7-form-control wpcf7-hidden\" value=\"\" type=\"hidden\" name=\"utm_content\" \/>\n<input class=\"wpcf7-form-control wpcf7-hidden\" value=\"\" type=\"hidden\" name=\"traffic_acquisition\" \/><p style=\"display: none !important;\" class=\"akismet-fields-container\" data-prefix=\"_wpcf7_ak_\"><label>&#916;<textarea name=\"_wpcf7_ak_hp_textarea\" cols=\"45\" rows=\"8\" maxlength=\"100\"><\/textarea><\/label><input type=\"hidden\" id=\"ak_js_1\" name=\"_wpcf7_ak_js\" value=\"70\"\/><script>\ndocument.getElementById( \"ak_js_1\" ).setAttribute( \"value\", ( new Date() ).getTime() );\n<\/script>\n<\/p><div class=\"wpcf7-response-output\" aria-hidden=\"true\"><\/div>\n<\/form>\n<\/div>\n\r\n<\/div>\r\n\r\n<div class=\"iframe-assistente-virtual\" style=\"display:none;\">\r\n    <iframe src=\"https:\/\/app.gptmaker.ai\/widget\/3E59E3A54E6FD2F888566A5389CA84B4\/iframe\" width=\"100%\" style=\"height: 100%; min-height: 70vh; border: solid #c1c2c3 1px;\" frameborder=\"0\"><\/iframe>\r\n<\/div>\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n\r\n\r\n<style>\r\n\t@media (max-width: 768px) {\r\n\t\t.img-ebook-full {\r\n\t\t\tmax-height: 260px\t\r\n\t\t}\r\n\t}\r\n<\/style>\n\n\n<p class=\"wp-block-paragraph\">About Amino Qu\u00edmica<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"AMINO\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/hGI9qRtL6qc?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>In the flexible foam industry, density is usually one of the first pieces of information analyzed in a technical specification. However, those who work with development, production, or quality control know that this parameter, on its own, does not guarantee the foam\u2019s behavior in practice.<\/p>\n","protected":false},"author":4,"featured_media":14298,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-14288","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nao-categorizado"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Stability in Flexible Foams: Why Two Foams with the Same Density Can Perform Differently - Amino<\/title>\n<meta name=\"description\" content=\"PU catalysts control reaction equilibrium, influencing processing, cell structure, foam stability, and the final performance of the system across different industrial applications.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.amino.com.br\/en\/blog\/performanceflexible\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Stability in Flexible Foams: Why Two Foams with the Same Density Can Perform Differently - Amino\" \/>\n<meta property=\"og:description\" content=\"PU catalysts control reaction equilibrium, influencing processing, cell structure, foam stability, and the final performance of the system across different industrial applications.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.amino.com.br\/en\/blog\/performanceflexible\/\" \/>\n<meta property=\"og:site_name\" content=\"Amino\" \/>\n<meta property=\"article:published_time\" content=\"2026-06-17T13:43:45+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-06-17T14:02:19+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.amino.com.br\/wp-content\/uploads\/2026\/06\/ingles-banner-1-1024x853.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1024\" \/>\n\t<meta property=\"og:image:height\" content=\"853\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Marketing Amino\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Marketing Amino\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"6 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.amino.com.br\\\/en\\\/blog\\\/performanceflexible\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.amino.com.br\\\/en\\\/blog\\\/performanceflexible\\\/\"},\"author\":{\"name\":\"Marketing Amino\",\"@id\":\"https:\\\/\\\/www.amino.com.br\\\/en\\\/#\\\/schema\\\/person\\\/88e4e9c31d168c68cb7a7ff28babec4e\"},\"headline\":\"Stability in Flexible Foams: Why Two Foams with the Same Density Can Perform Differently\",\"datePublished\":\"2026-06-17T13:43:45+00:00\",\"dateModified\":\"2026-06-17T14:02:19+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.amino.com.br\\\/en\\\/blog\\\/performanceflexible\\\/\"},\"wordCount\":908,\"commentCount\":0,\"image\":{\"@id\":\"https:\\\/\\\/www.amino.com.br\\\/en\\\/blog\\\/performanceflexible\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.amino.com.br\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/ingles-banner-1.png\",\"articleSection\":[\"N\u00e3o categorizado\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.amino.com.br\\\/en\\\/blog\\\/performanceflexible\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.amino.com.br\\\/en\\\/blog\\\/performanceflexible\\\/\",\"url\":\"https:\\\/\\\/www.amino.com.br\\\/en\\\/blog\\\/performanceflexible\\\/\",\"name\":\"Stability in Flexible Foams: Why Two Foams with the Same Density Can Perform Differently - Amino\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.amino.com.br\\\/en\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.amino.com.br\\\/en\\\/blog\\\/performanceflexible\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.amino.com.br\\\/en\\\/blog\\\/performanceflexible\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.amino.com.br\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/ingles-banner-1.png\",\"datePublished\":\"2026-06-17T13:43:45+00:00\",\"dateModified\":\"2026-06-17T14:02:19+00:00\",\"author\":{\"@id\":\"https:\\\/\\\/www.amino.com.br\\\/en\\\/#\\\/schema\\\/person\\\/88e4e9c31d168c68cb7a7ff28babec4e\"},\"description\":\"PU catalysts control reaction equilibrium, influencing processing, cell structure, foam stability, and the final performance of the system across different industrial applications.\",\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.amino.com.br\\\/en\\\/blog\\\/performanceflexible\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.amino.com.br\\\/en\\\/blog\\\/performanceflexible\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.amino.com.br\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/ingles-banner-1.png\",\"contentUrl\":\"https:\\\/\\\/www.amino.com.br\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/ingles-banner-1.png\",\"width\":1800,\"height\":1500},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.amino.com.br\\\/en\\\/#website\",\"url\":\"https:\\\/\\\/www.amino.com.br\\\/en\\\/\",\"name\":\"Amino\",\"description\":\"Ind\u00fastria Qu\u00edmica para Poliuretanos\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.amino.com.br\\\/en\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.amino.com.br\\\/en\\\/#\\\/schema\\\/person\\\/88e4e9c31d168c68cb7a7ff28babec4e\",\"name\":\"Marketing Amino\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/28f7d6fa94d8ed211a57557870a62050c7c1fc50269913404e94a712ef98ae98?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/28f7d6fa94d8ed211a57557870a62050c7c1fc50269913404e94a712ef98ae98?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/28f7d6fa94d8ed211a57557870a62050c7c1fc50269913404e94a712ef98ae98?s=96&d=mm&r=g\",\"caption\":\"Marketing Amino\"},\"url\":\"https:\\\/\\\/www.amino.com.br\\\/en\\\/blog\\\/author\\\/marketingamino-com-br\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Stability in Flexible Foams: Why Two Foams with the Same Density Can Perform Differently - Amino","description":"PU catalysts control reaction equilibrium, influencing processing, cell structure, foam stability, and the final performance of the system across different industrial applications.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.amino.com.br\/en\/blog\/performanceflexible\/","og_locale":"en_US","og_type":"article","og_title":"Stability in Flexible Foams: Why Two Foams with the Same Density Can Perform Differently - Amino","og_description":"PU catalysts control reaction equilibrium, influencing processing, cell structure, foam stability, and the final performance of the system across different industrial applications.","og_url":"https:\/\/www.amino.com.br\/en\/blog\/performanceflexible\/","og_site_name":"Amino","article_published_time":"2026-06-17T13:43:45+00:00","article_modified_time":"2026-06-17T14:02:19+00:00","og_image":[{"width":1024,"height":853,"url":"https:\/\/www.amino.com.br\/wp-content\/uploads\/2026\/06\/ingles-banner-1-1024x853.png","type":"image\/png"}],"author":"Marketing Amino","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Marketing Amino","Est. reading time":"6 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.amino.com.br\/en\/blog\/performanceflexible\/#article","isPartOf":{"@id":"https:\/\/www.amino.com.br\/en\/blog\/performanceflexible\/"},"author":{"name":"Marketing Amino","@id":"https:\/\/www.amino.com.br\/en\/#\/schema\/person\/88e4e9c31d168c68cb7a7ff28babec4e"},"headline":"Stability in Flexible Foams: Why Two Foams with the Same Density Can Perform Differently","datePublished":"2026-06-17T13:43:45+00:00","dateModified":"2026-06-17T14:02:19+00:00","mainEntityOfPage":{"@id":"https:\/\/www.amino.com.br\/en\/blog\/performanceflexible\/"},"wordCount":908,"commentCount":0,"image":{"@id":"https:\/\/www.amino.com.br\/en\/blog\/performanceflexible\/#primaryimage"},"thumbnailUrl":"https:\/\/www.amino.com.br\/wp-content\/uploads\/2026\/06\/ingles-banner-1.png","articleSection":["N\u00e3o categorizado"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.amino.com.br\/en\/blog\/performanceflexible\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.amino.com.br\/en\/blog\/performanceflexible\/","url":"https:\/\/www.amino.com.br\/en\/blog\/performanceflexible\/","name":"Stability in Flexible Foams: Why Two Foams with the Same Density Can Perform Differently - Amino","isPartOf":{"@id":"https:\/\/www.amino.com.br\/en\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.amino.com.br\/en\/blog\/performanceflexible\/#primaryimage"},"image":{"@id":"https:\/\/www.amino.com.br\/en\/blog\/performanceflexible\/#primaryimage"},"thumbnailUrl":"https:\/\/www.amino.com.br\/wp-content\/uploads\/2026\/06\/ingles-banner-1.png","datePublished":"2026-06-17T13:43:45+00:00","dateModified":"2026-06-17T14:02:19+00:00","author":{"@id":"https:\/\/www.amino.com.br\/en\/#\/schema\/person\/88e4e9c31d168c68cb7a7ff28babec4e"},"description":"PU catalysts control reaction equilibrium, influencing processing, cell structure, foam stability, and the final performance of the system across different industrial applications.","inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.amino.com.br\/en\/blog\/performanceflexible\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.amino.com.br\/en\/blog\/performanceflexible\/#primaryimage","url":"https:\/\/www.amino.com.br\/wp-content\/uploads\/2026\/06\/ingles-banner-1.png","contentUrl":"https:\/\/www.amino.com.br\/wp-content\/uploads\/2026\/06\/ingles-banner-1.png","width":1800,"height":1500},{"@type":"WebSite","@id":"https:\/\/www.amino.com.br\/en\/#website","url":"https:\/\/www.amino.com.br\/en\/","name":"Amino","description":"Ind\u00fastria Qu\u00edmica para Poliuretanos","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.amino.com.br\/en\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/www.amino.com.br\/en\/#\/schema\/person\/88e4e9c31d168c68cb7a7ff28babec4e","name":"Marketing Amino","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/secure.gravatar.com\/avatar\/28f7d6fa94d8ed211a57557870a62050c7c1fc50269913404e94a712ef98ae98?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/28f7d6fa94d8ed211a57557870a62050c7c1fc50269913404e94a712ef98ae98?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/28f7d6fa94d8ed211a57557870a62050c7c1fc50269913404e94a712ef98ae98?s=96&d=mm&r=g","caption":"Marketing Amino"},"url":"https:\/\/www.amino.com.br\/en\/blog\/author\/marketingamino-com-br\/"}]}},"_links":{"self":[{"href":"https:\/\/www.amino.com.br\/en\/wp-json\/wp\/v2\/posts\/14288","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.amino.com.br\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.amino.com.br\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.amino.com.br\/en\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.amino.com.br\/en\/wp-json\/wp\/v2\/comments?post=14288"}],"version-history":[{"count":2,"href":"https:\/\/www.amino.com.br\/en\/wp-json\/wp\/v2\/posts\/14288\/revisions"}],"predecessor-version":[{"id":14301,"href":"https:\/\/www.amino.com.br\/en\/wp-json\/wp\/v2\/posts\/14288\/revisions\/14301"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.amino.com.br\/en\/wp-json\/wp\/v2\/media\/14298"}],"wp:attachment":[{"href":"https:\/\/www.amino.com.br\/en\/wp-json\/wp\/v2\/media?parent=14288"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.amino.com.br\/en\/wp-json\/wp\/v2\/categories?post=14288"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.amino.com.br\/en\/wp-json\/wp\/v2\/tags?post=14288"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}