{"id":41363,"date":"2024-10-08T14:58:53","date_gmt":"2024-10-08T12:58:53","guid":{"rendered":"https:\/\/interreg-sudoe.eu\/piloto-proyecto-27\/piloto-1b-desarrollo-de-la-tecnologia-2-con-solucion-propia\/"},"modified":"2026-02-19T17:37:26","modified_gmt":"2026-02-19T16:37:26","slug":"piloto-2-aluminum-surface-treatment-without-cr","status":"publish","type":"piloto-proyecto-27","link":"https:\/\/interreg-sudoe.eu\/en\/piloto-proyecto-27\/piloto-2-aluminum-surface-treatment-without-cr\/","title":{"rendered":"Piloto 2: Aluminum surface treatment without Cr"},"content":{"rendered":"<h1>ALUMINUM SURFACE TREATMENT without Cr<\/h1>\n<p>The <a href=\"https:\/\/interreg-sudoe.eu\/en\/proyecto-interreg\/resinsurf\/\">RESINSURF<\/a> project is launching two important pilots to replace environmentally harmful chemicals with safer and more sustainable alternatives in the regions comprising the SUDOE area.<\/p>\n<h2>Pilot 2 of the RESINSURF Project: Cr-free coatings<\/h2>\n<p><iframe title=\"TITANIA CAPACITATION VIDEO\" width=\"800\" height=\"450\" src=\"https:\/\/www.youtube.com\/embed\/1cwz5LQXCMk?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><\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"wp-image-47277 alignleft\" src=\"https:\/\/interreg-sudoe.eu\/wp-content\/uploads\/2024\/10\/ChasisAvion-150x150.jpg\" alt=\"\" width=\"241\" height=\"241\" \/><\/p>\n<p><strong>Traditional protection<\/strong> of aluminum alloys uses a <strong>multi-layer system<\/strong> that includes chemicals with hexavalent chromium (Cr(VI)), which is toxic. Due to restrictions in Europe, safer alternatives have been found. For example, chromic anodizing has been replaced by methods such as tartaric-sulfuric and boric-sulfuric anodizing, which do not contain Cr(VI). Currently, research is being conducted on the creation of completely chrome-free primers and coatings, using techniques such as sol-gel and organic coatings with inhibitors.<\/p>\n<p>In this Project, two completely chrome-free alternatives will be developed and optimized. The main difference between the two is the generation of the first treatment layer, the one closest to the surface. The following will be tested:<\/p>\n<ol>\n<li><strong>Tartaric-sulfuric anodic layer:<\/strong> This is a coating applied to aluminum to protect it from corrosion, using a process that does not include hexavalent chromium, making it safer for the environment.<\/li>\n<li><strong>Conversion layers:<\/strong> These are coatings that transform the metal surface into a protective layer through a chemical process, improving its corrosion resistance and increasing its durability.<\/li>\n<\/ol>\n<p>For the anodic layer alternative, the <strong>addition of corrosion inhibitors<\/strong>, developed by <a href=\"https:\/\/www.smallmatek.pt\/\">SMALLMATEK<\/a>, will also be tested.<\/p>\n<p>In parallel, work will be done on implementing <strong>monitoring and control methods<\/strong> for the formulas (or baths) used and the final parts, to have <strong>efficient control<\/strong> of the evolution of the baths and <strong>guarantee the quality<\/strong> of the treated metal parts.<\/p>\n<p>The following institutions <strong>participate<\/strong> in the development and implementation of this pilot:<br \/>\n<a href=\"https:\/\/surfaceengineering.cidetec.es\/es\/inicio\">CIDETEC<\/a>, <a href=\"https:\/\/www.smallmatek.pt\/\">SMALLMATEK<\/a>, and the <a href=\"https:\/\/www.ua.pt\/\">University of Aveiro<\/a>.<\/p>\n<p>The <strong>validation<\/strong> of Pilot 2 will be carried out at:<br \/>\n<a href=\"https:\/\/titania.aero\/\">TITANIA<\/a> (see map below)<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Pilot 2: TRADITIONAL PROTECTION of ALUMINUM alloys uses layers containing HEXAVALENT CHROMIUM, a TOXIC chemical. Due to restrictions in Europe, safer ALTERNATIVES are being sought, such as tartaric-sulfuric and boric-sulfuric ANODIZING, which do not contain chromium. In this project, TWO completely CHROMIUM-FREE METHODS will be developed and optimized: a tartaric-sulfuric anodic layer and conversion coatings, which improve the metal&#8217;s corrosion resistance. Additionally, CORROSION INHIBITORS will be tested and methods will be implemented to control the quality of treatments applied to metal parts.<\/p>\n","protected":false},"author":4905,"featured_media":0,"template":"","meta":{"_acf_changed":false,"content-type":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0},"convocatoria-proyecto-27":[3313],"estado-proyecto-27":[3362],"objetivo-especifico-proyecto-27":[3300],"pais-proyecto-27":[3373],"periodo":[3555],"prioridad-proyecto-27":[3279],"publico-objetivo":[],"region-proyecto-27":[],"tematica-proyecto-27":[],"class_list":["post-41363","piloto-proyecto-27","type-piloto-proyecto-27","status-publish","hentry","convocatoria-proyecto-27-1st-call","estado-proyecto-27-on-going","objetivo-especifico-proyecto-27-so-1-1-research-innovation","pais-proyecto-27-spain","periodo-2021-2027-en","prioridad-proyecto-27-2-promoting-social-cohesion-and-territorial-and-demographic-balance-in-sudoe-through-innovation-and-the-transformation-of-productive-sectors"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Piloto 2: Aluminum surface treatment without Cr - Interreg Sudoe<\/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:\/\/interreg-sudoe.eu\/en\/piloto-proyecto-27\/piloto-2-aluminum-surface-treatment-without-cr\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Piloto 2: Aluminum surface treatment without Cr - Interreg Sudoe\" \/>\n<meta property=\"og:description\" content=\"Pilot 2: TRADITIONAL PROTECTION of ALUMINUM alloys uses layers containing HEXAVALENT CHROMIUM, a TOXIC chemical. Due to restrictions in Europe, safer ALTERNATIVES are being sought, such as tartaric-sulfuric and boric-sulfuric ANODIZING, which do not contain chromium. In this project, TWO completely CHROMIUM-FREE METHODS will be developed and optimized: a tartaric-sulfuric anodic layer and conversion coatings, which improve the metal&#039;s corrosion resistance. 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