{"id":4723,"date":"2025-04-25T12:41:04","date_gmt":"2025-04-25T09:41:04","guid":{"rendered":"https:\/\/coatinginstitute.org\/?p=4723"},"modified":"2025-07-28T14:23:19","modified_gmt":"2025-07-28T11:23:19","slug":"en1504-2","status":"publish","type":"post","link":"https:\/\/coatinginstitute.org\/en\/en1504-2\/","title":{"rendered":"CE Marking According to EN 1504-2: Requirements for Coatings and Mortars for Concrete Protection"},"content":{"rendered":"

The European standard EN 1504-2<\/strong> specifies the requirements for products used to protect concrete structures, including surface protection systems such as coatings and mortars. These materials are applied to reinforced concrete to preserve its integrity and extend its service life by preventing or reducing damage from environmental exposure, carbonation, chlorides, moisture ingress, and other aggressive factors. For manufacturers and suppliers, compliance with EN 1504-2 is a prerequisite for CE marking<\/strong>, enabling products to be legally marketed and used in the European Economic Area.<\/p>\n

Scope and Classes of Protection<\/h3>\n

EN 1504-2 applies to products intended for surface protection of concrete in three main categories:<\/p>\n

    \n
  • \n

    Hydrophobic impregnation<\/strong><\/p>\n<\/li>\n

  • \n

    Impregnation (sealing of pores)<\/strong><\/p>\n<\/li>\n

  • \n

    Coating (film-forming protective layer)<\/strong><\/p>\n<\/li>\n<\/ul>\n

    Each product type must fulfill specific functions such as increasing resistivity, controlling humidity, providing resistance against physical and chemical attack, and improving appearance. Products must also demonstrate compatibility with the substrate and adequate adhesion under defined conditions.<\/p>\n

    Essential Tests and Performance Requirements<\/h3>\n

    In order to obtain CE marking under EN 1504-2, the following performance characteristics must be tested<\/strong> by a Notified Laboratory and declared in the Declaration of Performance (DoP)<\/strong>:<\/p>\n

      \n
    • \n

      Adhesion strength<\/strong> (pull-off test) \u2265 1.0 MPa<\/p>\n<\/li>\n

    • \n

      Permeability to water vapour<\/strong> (\u03bc coefficient), classified as:<\/p>\n

        \n
      • \n

        Class I: SD < 5 m (high permeability)<\/p>\n<\/li>\n

      • \n

        Class II: 5 m \u2264 SD \u2264 50 m (medium)<\/p>\n<\/li>\n

      • \n

        Class III: SD > 50 m (low permeability)<\/p>\n<\/li>\n<\/ul>\n<\/li>\n

      • \n

        Capillary absorption<\/strong>: < 0.1 kg\/m\u00b2\u00b7h\u2070\u00b7\u2075<\/p>\n<\/li>\n

      • \n

        Permeability to CO\u2082<\/strong>: SD > 50 m<\/p>\n<\/li>\n

      • \n

        Resistance to freeze-thaw cycles<\/strong> (especially with de-icing salts): No visual damage<\/p>\n<\/li>\n

      • \n

        Crack bridging ability<\/strong>: Classified from A1 to A5 depending on performance at different temperatures<\/p>\n<\/li>\n

      • \n

        Chemical resistance<\/strong>: Based on intended exposure class<\/p>\n<\/li>\n

      • \n

        UV resistance and aging<\/strong> (for exterior coatings)<\/p>\n<\/li>\n<\/ul>\n

        Additional requirements may include fire behavior (Euroclass), abrasion resistance, and reaction to biological agents depending on the use case.<\/p>\n

        Manufacturers must also prepare the <\/span>Declaration of Performance<\/strong> and affix the <\/span>CE marking<\/strong> on packaging or technical documentation, providing transparency and legal compliance across the EU market.<\/span><\/p>\n

        \n

        CE Marking Support by the Institute of Coating Technologies<\/h3>\n

        The Institute of Coating Technologies<\/strong> offers specialized CE marking support services<\/strong> in accordance with EN 1504-2<\/strong>. Our team assists producers and importers in every stage of the certification process, including product testing coordination, communication with notified laboratories, preparation of technical documentation, and drafting of the Declaration of Performance. With deep expertise in coating technology and construction materials regulations, we provide tailored solutions to ensure market readiness, product reliability, and compliance with European legislation.<\/p>\n","protected":false},"excerpt":{"rendered":"

        The European standard EN 1504-2 specifies the requirements for products used to protect concrete structures, including surface protection systems such […]<\/p>\n","protected":false},"author":13,"featured_media":4720,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","_vp_format_video_url":"","_vp_image_focal_point":[],"footnotes":""},"categories":[97],"tags":[],"class_list":["post-4723","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ioct-news"],"acf":[],"yoast_head":"\nCE Marking According to EN 1504-2: Requirements for Coatings and Mortars for Concrete Protection - Institute of Coating Technologies<\/title>\n<meta name=\"description\" content=\"The European standard EN 1504-2 specifies the requirements for products used to protect concrete structures, including surface protection systems such as coatings and mortars.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/coatinginstitute.org\/en\/en1504-2\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"CE Marking According to EN 1504-2: Requirements for Coatings and Mortars for Concrete Protection - 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