{"id":9747,"date":"2026-02-09T02:53:38","date_gmt":"2026-02-09T02:53:38","guid":{"rendered":"https:\/\/shop.damao-tech.com\/?p=9747"},"modified":"2026-02-09T02:53:39","modified_gmt":"2026-02-09T02:53:39","slug":"spiegazione-della-densita-della-schiuma-eva","status":"publish","type":"post","link":"https:\/\/shop.damao-tech.com\/it\/2026\/02\/09\/spiegazione-della-densita-della-schiuma-eva\/","title":{"rendered":"EVA Foam Density Explained: Significato, Grafico e Come Scegliere"},"content":{"rendered":"<p>La densit\u00e0 della schiuma EVA \u00e8 uno dei parametri pi\u00f9 importanti che influenzano le prestazioni, la durabilit\u00e0 e la stabilit\u00e0 a lungo termine. Tuttavia, la densit\u00e0 \u00e8 spesso malintesa o semplificata come \u201cdurezza\u201d o \u201crigidezza della schiuma\u201d, il che pu\u00f2 portare a una selezione impropria del materiale.<\/p>\n\n\n\n<p>Questa guida spiega cosa significa effettivamente la densit\u00e0 della schiuma EVA, come viene misurata e come ingegneri e designer di prodotto selezionano la densit\u00e0 appropriata per applicazioni reali.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">1. Cos'\u00e8 la Densit\u00e0 della Schiuma EVA?<\/h2>\n\n\n\n<p>La densit\u00e0 della schiuma EVA si riferisce alla massa del materiale per unit\u00e0 di volume, generalmente espressa in&nbsp;<strong>kg\/m\u00b3<\/strong>. Rappresenta quanto materiale polimerico esiste all'interno della struttura della schiuma.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Densit\u00e0 bassa:<\/strong>\u00a0Contenuto d'aria maggiore, peso leggero, maggiore compressibilit\u00e0<\/li>\n\n\n\n<li><strong>Densit\u00e0 alta:<\/strong>\u00a0Massa polimerica maggiore, maggiore resistenza al carico, migliorata durabilit\u00e0<\/li>\n<\/ul>\n\n\n\n<p>La densit\u00e0 non \u00e8 una misura diretta della durezza superficiale. Due schiume EVA con identica durezza Shore possono comportarsi molto diversamente se le loro densit\u00e0 differiscono significativamente.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">2. Tabella di Densit\u00e0 Tipica della Schiuma EVA<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Intervallo di Densit\u00e0 (kg\/m\u00b3)<\/th><th>Caratteristiche della Schiuma<\/th><th>Applicazioni Comuni<\/th><\/tr><\/thead><tbody><tr><td>33 \u2013 60<\/td><td>Ultra-leggera, altamente compressibile<\/td><td>Tappetini yoga, inserti di galleggiamento, imballaggio morbido<\/td><\/tr><tr><td>60 \u2013 100<\/td><td>Peso leggero con supporto strutturale di base<\/td><td>Imbottiture protettive, calzature di livello entry<\/td><\/tr><tr><td>100 \u2013 150<\/td><td>Cushioning e stabilit\u00e0 bilanciati<\/td><td>Midsole atletiche, ortopedici, attrezzature sportive<\/td><\/tr><tr><td>150 \u2013 220<\/td><td>Alta resistenza, ridotto setto compressivo<\/td><td>Pavimentazioni marittime, piatti utensili, pannelli industriali<\/td><\/tr><tr><td>220 \u2013 280<\/td><td>Molto rigida, conservazione della forma<\/td><td>Componenti in schiuma strutturale, componenti pesanti<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>These ranges are representative of common EVA foam formulations. Actual performance depends on expansion ratio, cell structure, and additive systems.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">3. How Density Affects EVA Foam Performance<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Compression Resistance<\/h3>\n\n\n\n<p>Higher-density EVA foam resists deformation under sustained loads, making it suitable for applications where long-term thickness retention is critical.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Durability and Abrasion Resistance<\/h3>\n\n\n\n<p>As density increases, EVA foam generally exhibits improved abrasion resistance and lower compression set, extending service life in demanding environments.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Weight Considerations<\/h3>\n\n\n\n<p>Lower density significantly reduces part weight, which is essential for portable products and comfort-driven applications.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">4. Density vs. Hardness: A Common Misconception<\/h2>\n\n\n\n<p>Density and hardness are related but independent variables. Hardness (Shore C or Shore A) measures surface indentation resistance, while density reflects the internal mass distribution of the foam.<\/p>\n\n\n\n<p>For a detailed explanation of Shore hardness scales and their practical differences, see our related guide:&nbsp;<a href=\"https:\/\/shop.damao-tech.com\/it\/eva-foam-density-hardness-guide\/\">EVA Foam Density &amp; Hardness: Shore A vs Shore C<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">5. How to Choose the Right EVA Foam Density<\/h2>\n\n\n\n<p>Engineers typically select density based on functional priorities:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Maximum cushioning and weight reduction:<\/strong>\u00a033\u201380 kg\/m\u00b3<\/li>\n\n\n\n<li><strong>Balanced comfort and durability:<\/strong>\u00a080\u2013150 kg\/m\u00b3<\/li>\n\n\n\n<li><strong>Structural stability and wear resistance:<\/strong>\u00a0150\u2013220 kg\/m\u00b3<\/li>\n\n\n\n<li><strong>Minimal deformation under load:<\/strong>\u00a0220+ kg\/m\u00b3<\/li>\n<\/ul>\n\n\n\n<p>Density selection should always be validated with physical samples, especially for load-bearing or outdoor applications.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">6. Frequently Asked Questions About EVA Foam Density<\/h2>\n\n\n\n<p>Q: Does higher density always mean better quality?<\/p>\n\n\n\n<p>No. Higher density improves strength and durability, but may reduce cushioning and increase weight. The optimal density depends entirely on application requirements.Q: Can EVA foam density be customized?<\/p>\n\n\n\n<p>Yes. Density can be adjusted by controlling formulation and expansion ratio within practical manufacturing limits.Q: Is density related to water absorption?<\/p>\n\n\n\n<p>Indirectly. Higher-density EVA foam typically has a tighter cell structure, which can reduce water absorption in wet environments.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Need Help Selecting EVA Foam Density?<\/h2>\n\n\n\n<p>Our team provides density samples, technical data sheets, and application-specific recommendations for EVA foam projects.<a href=\"https:\/\/shop.damao-tech.com\/it\/contatto\/\">Richiesta Supporto Tecnico<\/a><\/p>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>EVA foam density is one of the most important parameters affecting performance, durability, and long-term stability. However, density is often misunderstood or oversimplified as \u201chardness\u201d or \u201cfoam stiffness,\u201d which can lead to incorrect material selection. This guide explains what EVA foam density actually means, how it is measured, and how engineers and product designers select [&#8230;]\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[624],"tags":[],"class_list":["post-9747","post","type-post","status-publish","format-standard","hentry","category-eva-material"],"_links":{"self":[{"href":"https:\/\/shop.damao-tech.com\/it\/wp-json\/wp\/v2\/posts\/9747","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/shop.damao-tech.com\/it\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/shop.damao-tech.com\/it\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/shop.damao-tech.com\/it\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/shop.damao-tech.com\/it\/wp-json\/wp\/v2\/comments?post=9747"}],"version-history":[{"count":0,"href":"https:\/\/shop.damao-tech.com\/it\/wp-json\/wp\/v2\/posts\/9747\/revisions"}],"wp:attachment":[{"href":"https:\/\/shop.damao-tech.com\/it\/wp-json\/wp\/v2\/media?parent=9747"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/shop.damao-tech.com\/it\/wp-json\/wp\/v2\/categories?post=9747"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/shop.damao-tech.com\/it\/wp-json\/wp\/v2\/tags?post=9747"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}