{"id":13192,"date":"2026-03-04T10:30:00","date_gmt":"2026-03-04T13:30:00","guid":{"rendered":"https:\/\/www.amino.com.br\/blog\/silicones-para-espumas-de-pu-no-setor-moveleiro-como-escolher-a-mp-certa-para-cada-processo-e-densidade\/"},"modified":"2026-03-19T12:24:43","modified_gmt":"2026-03-19T15:24:43","slug":"silicones-polyurethane-foam-furniture-sector","status":"publish","type":"post","link":"https:\/\/www.amino.com.br\/en\/blog\/silicones-polyurethane-foam-furniture-sector\/","title":{"rendered":"Silicones for PU Foams in the Furniture Sector: How to Choose the Right Additive for Each Process and Density"},"content":{"rendered":"\n<p>In the manufacturing of flexible polyurethane (PU) foams, performance does not depend only on the polyol-isocyanate base. A technical factor that impacts the final quality of the foam is the correct use of silicones as stabilizing additives. Especially in the furniture sector, the importance of proper use in process control stands out.<\/p>\n\n\n\n<p>Whether for soft foams or high-hardness foams, choosing the appropriate silicone ensures uniformity, stability, and durability. In this article, we explain how this works in practice \u2014 including tips for continuous production (slabstock) or molded foam.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">What are silicones for flexible PU foams?<\/h2>\n\n\n\n<p>Silicones are cell-stabilizing agents used in flexible foam formulations. Their main function is to control the formation, expansion, and regularity of foam cells during the PU reaction, ensuring that the material reaches the expected performance.<\/p>\n\n\n\n<p>In practice, they act in:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Prevention of foam collapse after expansion<\/li>\n\n\n\n<li><strong>Control of cell size and distribution<\/strong> (cellular structure)<\/li>\n\n\n\n<li>Direct influence on <strong>air passage, hardness, and foam appearance<\/strong><\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Silicones for different densities: what should be considered?<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><td><strong>Foam Density (kg\/m\u00b3)<\/strong><\/td><td><strong>Common Furniture Application<\/strong><\/td><td><strong>Silicone Characteristics<\/strong><\/td><\/tr><\/thead><tbody><tr><td>10 to 16<\/td><td>Cushions, pillow tops, soft backrests<\/td><td>Silicone with high stability favoring open cell structure<\/td><\/tr><tr><td>17 to 23<\/td><td>Seats, balanced upholstery<\/td><td>Moderate stabilization, preventing collapse while maintaining breathability<\/td><\/tr><tr><td>24 ormais<\/td><td>Firm seats, structural foams<\/td><td>Silicone with more closed-cell action and lower active density<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Density directly influences the level of comfort and support performance of the foam. Silicone plays a fundamental role in stabilizing the cellular structure, ensuring the maintenance of these properties over time.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Continuous vs. molded process: how silicone behaves<\/h2>\n\n\n\n<p>In addition to density, it is essential <strong>to consider the type of manufacturing process<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Silicones for slabstock foams (continuous process)<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Formulations requiring high thermal resistance and stability during long production runs<\/li>\n\n\n\n<li>Must guarantee cellular stability throughout block growth, minimizing the risk of structural collapse<\/li>\n\n\n\n<li>Ideal for large-scale production of sheets, blocks, and laminated foams<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Silicones for molded foams (injection)<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Require adequate control of flow and spreading inside the mold, ensuring uniform cavity filling;<\/li>\n\n\n\n<li>Prevent the formation of bubbles and surface defects;<\/li>\n\n\n\n<li>Typical applications: anatomical cushions, injected seats, armrests.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Amino additives: silicones compatible with your systems<\/h2>\n\n\n\n<p>At Amino, we not only develop customized PU systems \u2014 we also provide a complete line of additives, including silicones optimized for:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Low, medium, or high densities<\/li>\n\n\n\n<li>TDI-based or MDI-based formulations<\/li>\n\n\n\n<li>Production in molds or in continuous and discontinuous blocks<\/li>\n<\/ul>\n\n\n\n<p>Our silicones are present in Comfort lines, viscoelastic foams, HR foams, and molded systems, ensuring:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Process stability<\/li>\n\n\n\n<li>Low rejection rate<\/li>\n\n\n\n<li>Controlled cellular structure<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Why does this matter for the furniture sector?<\/h2>\n\n\n\n<p>A poorly adjusted silicone compromises:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Comfort performance<\/strong> due to excessively open or excessively closed cell structure<\/li>\n\n\n\n<li><strong>Upholstery durability,<\/strong> with premature collapse<\/li>\n\n\n\n<li><strong>Aesthetic quality and surface finish<\/strong> due to irregularities in cell formation<\/li>\n\n\n\n<li><strong>Production efficiency<\/strong>, reducing yield per mold or per block and increasing cost per piece<\/li>\n<\/ul>\n\n\n\n<p>For manufacturers of foams intended for sofas, chairs, corporate furniture, pillow tops, and upholstered furniture, the correct silicone selection is a critical factor to ensure quality standardization, process stability, and the technical and economic competitiveness of the product.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\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-en-redimensionado-para-1400x1703-3.jpeg\" alt=\"Register and request the comfort solutions catalog\" 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\tRegister and request the comfort solutions catalog\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-f12875-o1\" lang=\"en-US\" dir=\"ltr\" data-wpcf7-id=\"12875\">\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\/13192#wpcf7-f12875-o1\" method=\"post\" class=\"wpcf7-form init\" id=\"catalogo-en-comfort\" aria-label=\"Contact form\" novalidate=\"novalidate\" data-status=\"init\">\n<fieldset class=\"hidden-fields-container\"><input type=\"hidden\" name=\"_wpcf7\" value=\"12875\" \/><input type=\"hidden\" name=\"_wpcf7_version\" value=\"6.1.5\" \/><input type=\"hidden\" name=\"_wpcf7_locale\" value=\"en_US\" \/><input type=\"hidden\" name=\"_wpcf7_unit_tag\" value=\"wpcf7-f12875-o1\" \/><input type=\"hidden\" name=\"_wpcf7_container_post\" value=\"0\" \/><input type=\"hidden\" name=\"_wpcf7_posted_data_hash\" value=\"\" \/><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=\"Name\" 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=\"Company\" 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=\"Role\" 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<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=\"DDI + Phone number\" 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=\"Country\" value=\"\" type=\"text\" name=\"pais\" \/><\/span>\n<\/p>\n<p><input class=\"wpcf7-form-control wpcf7-submit has-spinner btn btn-primary\" type=\"submit\" value=\"Start a conversation\" \/>\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=\"94\"\/><script>document.getElementById( \"ak_js_1\" ).setAttribute( \"value\", ( new Date() ).getTime() );<\/script><\/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>\r\n\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>The definition of the ideal stabilizing silicone for polyurethane foams goes beyond simple reaction stability, being decisive for the structural quality of the upholstery, the consumer\u2019s perception of comfort, and the effective cost per produced piece.<\/p>\n\n\n\n<p>Amino offers full technical support to identify the most suitable additive for your process and density. With expertise in flexible systems and additives, we deliver solutions that balance performance, comfort, and productivity.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Looking for:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Silicone for polyurethane foam?<\/li>\n\n\n\n<li>Stabilizing additive for flexible foam?<\/li>\n\n\n\n<li>Silicone for slabstock or molded foam?<\/li>\n\n\n\n<li>Best additive for PU cell control?<\/li>\n\n\n\n<li>Silicones for the furniture industry?<\/li>\n<\/ul>\n\n\n\n<p><strong>You have found Amino. Talk to our technical team and optimize your formulation with the right silicones for each type of foam.<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">About Amino<\/h3>\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\n\n\n<p>Contact us and discover how Amino silicones can improve the performance of your furniture foams.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The quality of polyurethane foams in the furniture sector is directly linked to the choices made in the formulation, especially in the selection of strategic additives. The correct definition of the stabilizing silicone impacts performance, standardization, and production efficiency, representing a competitive advantage for manufacturers seeking high technical standards and reliability in their processes.<\/p>\n","protected":false},"author":4,"featured_media":13197,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-13192","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 v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Silicones for PU Foams in the Furniture Sector: How to Choose the Right Additive for Each Process and Density - Amino<\/title>\n<meta name=\"description\" content=\"The correct choice of silicone for PU foam impacts performance, standardization, and production efficiency in the furniture sector, becoming a competitive technical differentiator.\" \/>\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\/silicones-polyurethane-foam-furniture-sector\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Silicones for PU Foams in the Furniture Sector: How to Choose the Right Additive for Each Process and Density - 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