{"id":9683,"date":"2025-09-02T17:13:09","date_gmt":"2025-09-02T15:13:09","guid":{"rendered":"https:\/\/www.adesiviesigillanti.it\/?page_id=9683"},"modified":"2025-09-06T17:13:54","modified_gmt":"2025-09-06T15:13:54","slug":"4-wacker-5-25","status":"publish","type":"page","link":"https:\/\/www.adesiviesigillanti.it\/en\/archive\/archive-2025\/issue-3-2025\/4-wacker-5-25\/","title":{"rendered":"4-WACKER 5-25"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"9683\" class=\"elementor elementor-9683 elementor-9386\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6964fe9 e-flex e-con-boxed e-con e-parent\" data-id=\"6964fe9\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-34f62b8 e-con-full e-flex e-con e-child\" data-id=\"34f62b8\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1b22916 elementor-widget elementor-widget-heading\" data-id=\"1b22916\" 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\">High-performance binders help\nconstruction industry reduce carbon footprint<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3153df1 elementor-widget elementor-widget-text-editor\" data-id=\"3153df1\" 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<h5 style=\"text-align: center\"><strong><span style=\"color: #000000\">Klas Sorger &#8211; Daniel Sch\u00f6nfelder<\/span><\/strong><br \/><span style=\"color: #000000\"><strong>WACKER<\/strong><\/span><\/h5>\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-3faa00d elementor-widget elementor-widget-image\" data-id=\"3faa00d\" 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=\"635\" height=\"423\" src=\"https:\/\/www.adesiviesigillanti.it\/wp-content\/uploads\/2025\/09\/4_WAKER-FIG-1.jpg\" class=\"attachment-medium_large size-medium_large wp-image-9389 no-lazyload\" alt=\"\" srcset=\"https:\/\/www.adesiviesigillanti.it\/wp-content\/uploads\/2025\/09\/4_WAKER-FIG-1.jpg 635w, https:\/\/www.adesiviesigillanti.it\/wp-content\/uploads\/2025\/09\/4_WAKER-FIG-1-300x200.jpg 300w\" sizes=\"(max-width: 635px) 100vw, 635px\" \/>\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-73b941a elementor-widget elementor-widget-text-editor\" data-id=\"73b941a\" 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 class=\"p1\">The cement industry is responsible for around 8% of the world\u2019s total CO<span class=\"s1\">2 <\/span>emissions. Considered a particularly energy and emissions-intensive sector, the cement industry has taken various measures aimed at reducing its CO<span class=\"s1\">2 <\/span>emissions for the benefit of the climate. Some of these measures involve changing the product portfolio to include cements with a lower proportion of Portland clinker. (Portland clinker is the heated part of the cement that is responsible for the setting and hardening of the cement when water is added.) This trend is likely to continue, especially as many industrialized nations have set themselves the goal of producing climate-neutral cement from 2050. In several European countries, among them the Czech Republic, manufacturers have already removed CEM I from their portfolio.<br \/>In terms of volume, cement, alongside sand, is the most important component of dry-mix mortars and, consequently, tile adhesives. It serves as a binding agent.<br \/>CEM I is used in many commercially available tile\u00a0adhesives. The cement industry is, however, increasing its production of CEM II and other types of low-emission cements that have a lower carbon footprint.<br \/>As CEM I will at some point be taken off the market, tile dhesive manufacturers face the task of replacing Portland cement in their formulations with CEM II or, if necessary, other typesof cements. In view of this development, however, an important question needs to be asked as to whether and to what extent the properties of tile adhesives change if CEM I is replaced by CEM II?<\/p><p><span style=\"color: #f0d30a\"><strong>SUBSTITUTING CEM I WITH CEM II IN TILE ASHESIVES<\/strong><\/span><\/p><p class=\"p1\">WACKER has investigated the extent to which the substitution of CEM I with CEM II will impact the properties of tile adhesives. A tile adhesive classified as C2TE in accordance with European standard EN 12004 (C = cementitious adhesive, 2 = high-strength adhesive, T = high resistance to vertical slip, E = open time of at least 30 minutes) served as a reference sample. In a series of tests, the CEM I content in the reference sample was replaced by four different CEM II formulations. WACKER experts examined if the new formulations are able to fulfill the requirements specified for a C2TE tile adhesive. The test results revealed that most of the properties remained unchanged. As in the case of the reference sample, density and workability, resistance to vertical slip, and wetting capability meet the requirements specified in the standard. Using CEM II instead of CEM I does, however, have a negative impact on two properties: the tensile adhesion strength following immersion in water and early strength. In contrast to the reference sample, all the CEM II tile adhesive formulations tested had a lower initial tensile adhesion strength and a lower tensile adhesion strength following storage at elevated temperatures and under freeze-thaw conditions. What is crucial, however, is the fact that the tile adhesives formulated with CEM II have such a low tensile adhesion strength following immersion in water that they fail to meet the C2 requirement of 1 N\/mm<span class=\"s1\">2 <\/span>as specified in the standard.<\/p><p><strong><span style=\"color: #f0d30a\">LTENSILE ADHESION STRENGTH OF CEM II TILE ADHESIVES CAN BE IMPROVED BY USING VINNAPAS\u00ae DISPERSIBLE POLYMER POWDERS TO MODIFY THE FORMULATION<\/span><\/strong><\/p><p class=\"p1\">It is possible to improve the unsatisfactory tensile adhesion strength of CEM II tile adhesives following immersion in water. The key to this is the use of polymermodified adhesives. Replacing a standard vinyl acetateethylene copolymer (VAE) with special terpolymers in which water-repellent monomers are incorporated into the VAE backbone improves the tensile adhesion strength following immersion in water, whereby the requirements specified in the standard are met. In formulations with Vinnapas<span class=\"s1\">\u00ae <\/span>8118 E, 8620 E or 7220 E, which contain such water-repellent monomers, the tensile adhesion strength following immersion in water is significantly improved and the requirements specified in the standard are thus met.<\/p><figure id=\"attachment_9390\" aria-describedby=\"caption-attachment-9390\" style=\"width: 635px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" class=\"wp-image-9390 size-full no-lazyload\" src=\"https:\/\/www.adesiviesigillanti.it\/wp-content\/uploads\/2025\/09\/4_WAKER-FIG-2.jpg\" alt=\"\" width=\"635\" height=\"424\" srcset=\"https:\/\/www.adesiviesigillanti.it\/wp-content\/uploads\/2025\/09\/4_WAKER-FIG-2.jpg 635w, https:\/\/www.adesiviesigillanti.it\/wp-content\/uploads\/2025\/09\/4_WAKER-FIG-2-300x200.jpg 300w\" sizes=\"(max-width: 635px) 100vw, 635px\" \/><figcaption id=\"caption-attachment-9390\" class=\"wp-caption-text\">CEM II cements are suitable as binding agents for tile adhesives. In order to achieve similar performance characteristics as CEM I cements, modifications to the composition of the relevant adhesive are recommended.<br \/>To successfully progress in the transition from CEM I to CEM II cements, manufacturers of dry-mix mortars can rely on Wacker and its range of Vinnapas <span class=\"s1\">\u00ae <\/span>E grade dispersible polymer powders. (Photo: Wacker Chemie AG)<\/figcaption><\/figure><p><span style=\"color: #f0d30a\"><strong>CONCLUSIONS<\/strong><\/span><\/p><p class=\"p1\">CEM II cements are suitable as binding agents for tile adhesives. In order to achieve similar performance characteristics as CEM I cements, modifications to the composition of the relevant adhesive are recommended and, in some cases, may even be necessary. To successfully progress in the transition from CEM I to CEM II cements and, at the same time, achieve an improved carbon footprint for tile adhesives, manufacturers of dry-mix mortars can rely on WACKER and its range of Vinnapas<span class=\"s1\">\u00ae <\/span>E grade dispersible polymer powders.<\/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-f66b61a elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"f66b61a\" 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-6dc7001 elementor-widget elementor-widget-text-editor\" data-id=\"6dc7001\" 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<h5 style=\"text-align: center\"><a href=\"https:\/\/www.adesiviesigillanti.it\/wp-content\/uploads\/2025\/09\/Wacker3-25.pdf\"><strong><span style=\"color: #f0d30a\">DOWNLOAD THE PDF FILE<\/span><\/strong><\/a><\/h5>\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-63aa4d9f e-con-full e-flex e-con e-child\" data-id=\"63aa4d9f\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2581d035 elementor-widget__width-inherit elementor-widget elementor-widget-heading\" data-id=\"2581d035\" 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<h3 class=\"elementor-heading-title elementor-size-default\">Other contents<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5a3968a elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"5a3968a\" 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-2e14d991 elementor-widget elementor-widget-heading\" data-id=\"2e14d991\" 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<h3 class=\"elementor-heading-title elementor-size-default\"><a href=\"https:\/\/www.adesiviesigillanti.it\/en\/archive\/archive-2025\/issue-3-2025\/1-kaneka\/\">KANEKA BELGIUM NV<\/a><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2ad1e9af elementor-widget elementor-widget-heading\" data-id=\"2ad1e9af\" 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\"><a href=\"https:\/\/www.adesiviesigillanti.it\/en\/archive\/archive-2025\/issue-3-2025\/1-kaneka\/\">The use of Kaneka polymer technology in waterproofing applications<\/a><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-330b574 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"330b574\" 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-520b5e46 elementor-widget elementor-widget-heading\" data-id=\"520b5e46\" 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<h3 class=\"elementor-heading-title elementor-size-default\"><a href=\"https:\/\/www.adesiviesigillanti.it\/en\/archive\/archive-2025\/issue-3-2025\/2-elementis\/\">ELEMENTIS<\/a><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6e8c3559 elementor-widget elementor-widget-heading\" data-id=\"6e8c3559\" 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\"><a href=\"https:\/\/www.adesiviesigillanti.it\/en\/archive\/archive-2025\/issue-3-2025\/2-elementis\/\">Additives to enhance the performance of adhesives and sealants<\/a><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7436e119 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"7436e119\" 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-10763a49 elementor-widget elementor-widget-heading\" data-id=\"10763a49\" 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<h3 class=\"elementor-heading-title elementor-size-default\"><a href=\"https:\/\/www.adesiviesigillanti.it\/en\/archive\/archive-2025\/issue-3-2025\/3-sika\/\">SIKA<\/a><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-20ff950b elementor-widget elementor-widget-heading\" data-id=\"20ff950b\" 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\"><a href=\"https:\/\/www.adesiviesigillanti.it\/en\/archive\/archive-2025\/issue-3-2025\/3-sika\/\">Overcoming the bonding challenge of polypropylene in industrial manufacturing<\/a><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-30ef4d98 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"30ef4d98\" 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-cc0d61b elementor-widget elementor-widget-heading\" data-id=\"cc0d61b\" 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<h3 class=\"elementor-heading-title elementor-size-default\"><a href=\"https:\/\/www.adesiviesigillanti.it\/en\/archive\/archive-2025\/issue-3-2025\/5-henkel-3-25\/\">HENKEL<\/a><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-47651ab5 elementor-widget elementor-widget-heading\" data-id=\"47651ab5\" 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\"><a href=\"https:\/\/www.adesiviesigillanti.it\/en\/archive\/archive-2025\/issue-3-2025\/5-henkel-3-25\/\">Henkel and Synthomer partner to cut carbon emissions in adhesives<\/a><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-47ac4dbb elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"47ac4dbb\" 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-38580469 elementor-widget elementor-widget-heading\" data-id=\"38580469\" 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<h3 class=\"elementor-heading-title elementor-size-default\"><a href=\"https:\/\/www.adesiviesigillanti.it\/en\/archive\/archive-2025\/issue-3-2025\/6-universidad\/\">UNIVERSIDAD DE BURGOS<\/a><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-478df431 elementor-widget elementor-widget-heading\" data-id=\"478df431\" 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\"><a href=\"https:\/\/www.adesiviesigillanti.it\/en\/archive\/archive-2025\/issue-3-2025\/6-universidad\/\">Customized polyurethane adhesives for sustainable facade cladding and thermal insulation<\/a><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-70c07c2d elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"70c07c2d\" 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>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-4bf15be1 e-flex e-con-boxed e-con e-parent\" data-id=\"4bf15be1\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>High-performance binders help construction industry reduce carbon footprint Klas Sorger &#8211; Daniel Sch\u00f6nfelderWACKER The cement industry is responsible for around 8% of the world\u2019s total CO2 emissions. Considered a particularly energy and emissions-intensive sector, the cement industry has taken various measures aimed at reducing its CO2 emissions for the benefit of the climate. Some of [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":0,"parent":9583,"menu_order":4,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-9683","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>4-WACKER 5-25 - Adesivi &amp; Sigillanti<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.adesiviesigillanti.it\/en\/archive\/archive-2025\/issue-3-2025\/4-wacker-5-25\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"4-WACKER 5-25 - Adesivi &amp; Sigillanti\" \/>\n<meta property=\"og:description\" content=\"High-performance binders help construction industry reduce carbon footprint Klas Sorger &#8211; Daniel Sch\u00f6nfelderWACKER The cement industry is responsible for around 8% of the world\u2019s total CO2 emissions. Considered a particularly energy and emissions-intensive sector, the cement industry has taken various measures aimed at reducing its CO2 emissions for the benefit of the climate. 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