{"id":33665,"date":"2026-08-27T08:53:19","date_gmt":"2026-08-27T06:53:19","guid":{"rendered":"https:\/\/www.envirofalk.com\/referenzen\/wenn-wasser-ueber-beschichtungsqualitaet-entscheidet\/"},"modified":"2026-08-27T10:22:19","modified_gmt":"2026-08-27T08:22:19","slug":"when-water-determines-coating-quality","status":"publish","type":"referenz","link":"https:\/\/www.envirofalk.com\/en\/referenzen\/when-water-determines-coating-quality\/","title":{"rendered":"When water determines coating quality"},"content":{"rendered":"<div class=\"wpb-content-wrapper\" id=\"wpb-content-root\"><p>[vc_section][vc_row full_width=&#8221;stretch_row_content_no_spaces&#8221;][vc_column]<div class=\"custom-top-banner img-box   has-icon\" style=\"background-image: url(https:\/\/www.envirofalk.com\/wp-content\/uploads\/2026\/08\/Saint-Gobain-Header.png)\"><div class=\"container relative\"><div class=\"text-box\"><div class=\"slideInRight animated\"><img loading=\"lazy\" decoding=\"async\" width=\"1\" height=\"1\" src=\"https:\/\/www.envirofalk.com\/wp-content\/uploads\/2023\/05\/Wasseraufbereitung_Glasherstellung_Icon.svg\" class=\"attachment-120x120 size-120x120\" alt=\"Glasscheibe Icon\" \/><p><strong>References<\/strong><br \/>\nWater treatment for the glass industry<\/p><\/div><\/div><\/div><\/div>[\/vc_column][\/vc_row][vc_row el_class=&#8221;breadcrumbs-wrapper&#8221;][vc_column]<div class=\"breadcrumbs\"><label><\/label> <a href=\"https:\/\/www.envirofalk.com\/en\/\">Home<\/a><\/div>[\/vc_column][\/vc_row][\/vc_section][vc_section][vc_row css_animation=&#8221;slideInUp&#8221; el_class=&#8221;two-columns-row tablet-row&#8221;][vc_column width=&#8221;3\/4&#8243;][vc_custom_heading text=&#8221;When water determines coating quality&#8221; font_container=&#8221;tag:h1|text_align:left&#8221; use_theme_fonts=&#8221;yes&#8221;][vc_column_text]<b>How a purified-water recirculation system defines process stability in glass coating at Saint-Gobain Glass Germany<\/b>[\/vc_column_text][vc_column_text]<b><i>In highly sensitive coating processes in the flat-glass industry, even minor variations in water quality can have a significant impact on product quality and reject rates. A system modernisation at the Saint-Gobain Glass Germany site in Cologne-Porz demonstrates how modern purified-water recirculation systems combine transparency, stability and resource efficiency.<\/i><\/b>[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/4&#8243;][vc_empty_space height=&#8221;120px&#8221;]<div class=\"online-consultant-box  wpb_content_element\"><div class=\"online-consultant\"><div><div class=\"wpb_text_column\"><p>Ihr Ansprechpartner<\/p>\n<\/div><a href=\"#beratung\" target=\"_self\" class=\"custom-btn show-modal\"><i class=\"icon-chevron-right\"><\/i>Kontakt<\/a><\/div><div class=\"relative\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 32.83 32.83\">\n\t\t\t\t\t\t\t\t\t<defs>\n\t\t\t\t\t\t\t\t\t\t<linearGradient id=\"gradient\" x1=\"0%\" y1=\"0%\" x2=\"0%\" y2=\"100%\" gradientTransform=\"rotate(-135)\">\n\t\t\t\t\t\t\t\t\t\t\t<stop offset=\"0%\" stop-color=\"#97be0d\"\/>\n\t\t\t\t\t\t\t\t\t\t\t\t<stop offset=\"100%\" stop-color=\"rgba(255, 255, 255, 0)\"\/>\n\t\t\t\t\t\t\t\t\t\t<\/linearGradient>\n\t\t\t\t\t\t\t\t\t<\/defs>\n\t\t\t\t\t\t\t\t\t<path class=\"wpb_animate_when_almost_visible circular-progress\" stroke=\"url(#gradient)\" stroke-width=\"1\" stroke-dasharray=\"100, 100\" fill=\"none\" d=\"M18,2.08a15.92,15.92,0,0,1,0,31.84h0A15.92,15.92,0,0,1,18,2.08\" transform=\"translate(-1.59 -1.58)\"\/>\n                            \t<\/svg><span><img loading=\"lazy\" decoding=\"async\" width=\"656\" height=\"595\" src=\"https:\/\/www.envirofalk.com\/wp-content\/uploads\/2026\/03\/David-Hannappel-Ansprechpartner.png\" class=\"attachment-full size-full\" alt=\"\" srcset=\"https:\/\/www.envirofalk.com\/wp-content\/uploads\/2026\/03\/David-Hannappel-Ansprechpartner.png 656w, https:\/\/www.envirofalk.com\/wp-content\/uploads\/2026\/03\/David-Hannappel-Ansprechpartner-350x317.png 350w\" sizes=\"auto, (max-width: 656px) 100vw, 656px\" \/><\/span><\/div><\/div><\/div>[\/vc_column][\/vc_row][\/vc_section][vc_section css=&#8221;.vc_custom_1721217061548{margin-top: -50px !important;padding-bottom: -80px !important;}&#8221; content_placement=&#8221;middle&#8221; el_class=&#8221;testimonial-customerbox&#8221;][vc_row el_class=&#8221;has-bg&#8221;][vc_column parallax=&#8221;content-moving&#8221; width=&#8221;2\/3&#8243; css=&#8221;.vc_custom_1721036331346{background-position: center !important;background-repeat: no-repeat !important;background-size: cover !important;}&#8221;][vc_custom_heading text=&#8221;An underestimated factor in flat-glass finishing&#8221; font_container=&#8221;tag:h3|text_align:left&#8221; use_theme_fonts=&#8221;yes&#8221;][vc_column_text]The requirements for coated flat glass are continually increasing. Applications range from energy-efficient fa\u00e7ades and complex insulating-glass solutions to design-oriented interior solutions. Alongside high quality standards, economical and resource-efficient production processes are increasingly coming into focus.<\/p>\n<p>Magnetron coating lines, on which functional metal and metal-oxide layers are applied, are a key technology. The process windows are narrow: even minimal deviations in individual parameters can directly affect coating quality.<span class=\"Apple-converted-space\">\u00a0<\/span><\/p>\n<p>An important and often underestimated influencing factor is the quality of the process water used in the upstream glass-washing process.[\/vc_column_text][vc_column_text]                <div id=\"wsdsgvovideo-1\" class=\"wsdsgvovideo_img\" \r\n                    style=\"background-color:#000;\"  \r\n                    data-yid=\"HvoP_jRk700\" \r\n                    data-url=\"\" \r\n                    data-source=\"youtube\" \r\n                    data-popup=\"false\" \r\n                    data-ratio=\"\" \r\n                    data-title=\"Saint Gobain\" \r\n                    data-description=\"\" \r\n                    data-color-default=\"#000\"\r\n                    data-color-active=\"#ff0000\"\r\n                    data-button-class=\"ws-default-btn\"\r\n                    data-use-bootstrap=\"0\"\r\n\t\t\t\t\tdata-background=\"rgba(255,255,255,0.5)\"\r\n                    data-modal-id=\"#wsdsgvovideoModal1\"\r\n\t\t\t\t\tdata-extra_css=\"\"\r\n\t\t\t\t\tdata-show_title=\"true\"\r\n                    >\r\n\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.envirofalk.com\/wp-content\/uploads\/2023\/09\/Saint-Gobain-Video-Thumbnail.png\" style=\"opacity:1;\" width=\"1280\" height=\"720\" alt=\"\" title=\"\" \/>\r\n\t\t\t\t\t\t<div class=\"play_icon\">\r\n\t\t\t\t\t\t\t<svg version=\"1.1\" fill=\"#ffffff\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"72\" height=\"72\" viewBox=\"0 0 72 72\">\r\n\t\t\t\t\t\t\t<title>play<\/title>\r\n\t\t\t\t\t\t\t<path d=\"M29.953 49.5l18-13.5-18-13.5v27zM36 6.047q12.375 0 21.164 8.789t8.789 21.164-8.789 21.164-21.164 8.789-21.164-8.789-8.789-21.164 8.789-21.164 21.164-8.789z\"><\/path>\r\n\t\t\t\t\t\t\t<\/svg>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t                    <div style=\"display:none;\" class=\"accept-youtube accept-img\">\r\n                        <div class=\"accept-video-txt\" style=\"padding:10px;margin-bottom:15px;background-color:rgba(255,255,255,0.5);color:#000;\">\r\n\t\t\t\t\t\t\tAufgrund der DSGVO ben\u00f6tigen wir Ihre Zustimmung, um Daten von YouTube zu laden.<br\/>Mehr Infos finden Sie in unserer \r\n\t\t\t\t\t\t\t<a href=\"datenschutz\" class=\"privacy_policy\" target=\"_blank\">\r\n\t\t\t\t\t\t\t\tPrivacy Policy\t\t\t\t\t\t\t<\/a>\r\n                        <\/div>\r\n\t\t\t\t\t\t<div class=\"wsdsgvovideo_acception\" data-id=\"wsdsgvovideo-1\">\r\n                            Accept                        <\/div>\r\n                    <\/div>\r\n                <\/div>\r\n        [\/vc_column_text][vc_custom_heading text=&#8221;Cologne-Porz site: continuity and ongoing development&#8221; font_container=&#8221;tag:h3|text_align:left&#8221; use_theme_fonts=&#8221;yes&#8221; css=&#8221;.vc_custom_1787637200175{padding-top: 20px !important;}&#8221;][vc_column_text]SaintGobain Glass Deutschland GmbH is one of the leading manufacturers of flat-glass solutions and part of the international SaintGobain Group. High-quality multifunctional glass for construction applications and specialist markets has been produced at the long-established Cologne-Porz site for more than 125 years.<\/p>\n<p>Alongside technological excellence, sustainability is a particular focus. Raw materials are systematically kept in circulation, including through the recycling of production rejects and processed insulating glass from renovation and dismantling projects. These materials are separated, cleaned and returned to the melting process. In coating in particular, however, one thing is clear: resource efficiency and product quality are inextricably linked.[\/vc_column_text][vc_raw_html]JTNDZGl2JTIwY2xhc3MlM0QlMjJlbnZpcm9mYWxrLWJpbGRlciUyMiUzRSUwQSUyMCUyMCUzQ2RpdiUyMGNsYXNzJTNEJTIyZW52aXJvZmFsay1iaWxkZXJfX29iZW4lMjIlM0UlMEElMjAlMjAlMjAlMjAlM0NpbWclMEElMjAlMjAlMjAlMjAlMjAlMjBzcmMlM0QlMjJodHRwcyUzQSUyRiUyRnd3dy5lbnZpcm9mYWxrLmNvbSUyRndwLWNvbnRlbnQlMkZ1cGxvYWRzJTJGMjAyNiUyRjA4JTJGRW52aXJvRkFMS19SZWN5Y2xpbmdfSXNvbGllcmdsYWVzZXItc2NhbGVkLmpwZyUyMiUwQSUyMCUyMCUyMCUyMCUyMCUyMGFsdCUzRCUyMlJlY3ljbGluZyUyMG9mJTIwaW5zdWxhdGluZyUyMGdsYXNzJTIyJTBBJTIwJTIwJTIwJTIwJTIwJTIwbG9hZGluZyUzRCUyMmxhenklMjIlMEElMjAlMjAlMjAlMjAlM0UlMEElMjAlMjAlMjAlMjAlM0NpbWclMEElMjAlMjAlMjAlMjAlMjAlMjBzcmMlM0QlMjJodHRwcyUzQSUyRiUyRnd3dy5lbnZpcm9mYWxrLmNvbSUyRndwLWNvbnRlbnQlMkZ1cGxvYWRzJTJGMjAyNiUyRjA4JTJGRW52aXJvRkFMS19GbG9hdGdsYXNvZmVuX0dsYXNwcm9kdWt0aW9uLXNjYWxlZC5qcGclMjIlMEElMjAlMjAlMjAlMjAlMjAlMjBhbHQlM0QlMjJGbG9hdC1nbGFzcyUyMGZ1cm5hY2UlMjBpbiUyMGdsYXNzJTIwcHJvZHVjdGlvbiUyMiUwQSUyMCUyMCUyMCUyMCUyMCUyMGxvYWRpbmclM0QlMjJsYXp5JTIyJTBBJTIwJTIwJTIwJTIwJTNFJTBBJTIwJTIwJTNDJTJGZGl2JTNFJTBBJTBBJTIwJTIwJTNDaW1nJTBBJTIwJTIwJTIwJTIwY2xhc3MlM0QlMjJlbnZpcm9mYWxrLWJpbGRlcl9fdW50ZW4lMjIlMEElMjAlMjAlMjAlMjBzcmMlM0QlMjJodHRwcyUzQSUyRiUyRnd3dy5lbnZpcm9mYWxrLmNvbSUyRndwLWNvbnRlbnQlMkZ1cGxvYWRzJTJGMjAyNiUyRjA4JTJGRW52aXJvRkFMS19XYXNzZXJhdWZiZXJlaXR1bmdfU2NoZWliZW5mb3JtYXRlLXNjYWxlZC5qcGclMjIlMEElMjAlMjAlMjAlMjBhbHQlM0QlMjJXYXRlciUyMHRyZWF0bWVudCUyMGZvciUyMGRpZmZlcmVudCUyMGdsYXNzJTIwc2l6ZXMlMjIlMEElMjAlMjAlMjAlMjBsb2FkaW5nJTNEJTIybGF6eSUyMiUwQSUyMCUyMCUzRSUwQSUzQyUyRmRpdiUzRSUwQSUwQSUzQ3N0eWxlJTNFJTBBJTIwJTIwLmVudmlyb2ZhbGstYmlsZGVyJTIwJTdCJTBBJTIwJTIwJTIwJTIwZGlzcGxheSUzQSUyMGZsZXglM0IlMEElMjAlMjAlMjAlMjBmbGV4LWRpcmVjdGlvbiUzQSUyMGNvbHVtbiUzQiUwQSUyMCUyMCUyMCUyMGdhcCUzQSUyMDE2cHglM0IlMEElMjAlMjAlMjAlMjB3aWR0aCUzQSUyMDEwMCUyNSUzQiUwQSUyMCUyMCU3RCUwQSUwQSUyMCUyMC5lbnZpcm9mYWxrLWJpbGRlcl9fb2JlbiUyMCU3QiUwQSUyMCUyMCUyMCUyMGRpc3BsYXklM0ElMjBncmlkJTNCJTBBJTIwJTIwJTIwJTIwZ3JpZC10ZW1wbGF0ZS1jb2x1bW5zJTNBJTIwcmVwZWF0KDIlMkMlMjBtaW5tYXgoMCUyQyUyMDFmcikpJTNCJTBBJTIwJTIwJTIwJTIwZ2FwJTNBJTIwMTZweCUzQiUwQSUyMCUyMCU3RCUwQSUwQSUyMCUyMC5lbnZpcm9mYWxrLWJpbGRlciUyMGltZyUyMCU3QiUwQSUyMCUyMCUyMCUyMGRpc3BsYXklM0ElMjBibG9jayUzQiUwQSUyMCUyMCUyMCUyMHdpZHRoJTNBJTIwMTAwJTI1JTNCJTBBJTIwJTIwJTIwJTIwaGVpZ2h0JTNBJTIwYXV0byUzQiUwQSUyMCUyMCU3RCUwQSUwQSUyMCUyMC5lbnZpcm9mYWxrLWJpbGRlcl9fb2JlbiUyMGltZyUyMCU3QiUwQSUyMCUyMCUyMCUyMGhlaWdodCUzQSUyMDM1MHB4JTNCJTBBJTIwJTIwJTIwJTIwb2JqZWN0LWZpdCUzQSUyMGNvdmVyJTNCJTBBJTIwJTIwJTdEJTBBJTBBJTIwJTIwLmVudmlyb2ZhbGstYmlsZGVyX191bnRlbiUyMCU3QiUwQSUyMCUyMCUyMCUyMHdpZHRoJTNBJTIwMTAwJTI1JTNCJTBBJTIwJTIwJTIwJTIwbWF4LWhlaWdodCUzQSUyMDU1MHB4JTNCJTBBJTIwJTIwJTIwJTIwb2JqZWN0LWZpdCUzQSUyMGNvdmVyJTNCJTBBJTIwJTIwJTdEJTBBJTBBJTIwJTIwJTQwbWVkaWElMjAobWF4LXdpZHRoJTNBJTIwNzY3cHgpJTIwJTdCJTBBJTIwJTIwJTIwJTIwLmVudmlyb2ZhbGstYmlsZGVyX19vYmVuJTIwJTdCJTBBJTIwJTIwJTIwJTIwJTIwJTIwZ3JpZC10ZW1wbGF0ZS1jb2x1bW5zJTNBJTIwMWZyJTNCJTBBJTIwJTIwJTIwJTIwJTdEJTBBJTBBJTIwJTIwJTIwJTIwLmVudmlyb2ZhbGstYmlsZGVyX19vYmVuJTIwaW1nJTIwJTdCJTBBJTIwJTIwJTIwJTIwJTIwJTIwaGVpZ2h0JTNBJTIwYXV0byUzQiUwQSUyMCUyMCUyMCUyMCU3RCUwQSUwQSUyMCUyMCUyMCUyMC5lbnZpcm9mYWxrLWJpbGRlcl9fdW50ZW4lMjAlN0IlMEElMjAlMjAlMjAlMjAlMjAlMjBtYXgtaGVpZ2h0JTNBJTIwbm9uZSUzQiUwQSUyMCUyMCUyMCUyMCU3RCUwQSUyMCUyMCU3RCUwQSUzQyUyRnN0eWxlJTNF[\/vc_raw_html][vc_column_text css=&#8221;.vc_custom_1787813573457{margin-top: -30px !important;}&#8221;]<\/p>\n<p style=\"text-align: left; font-size: 10px;\">Image 1: Recycling of production rejects and processed insulating glass. Image 2: Float-glass furnace, the heart of glass production. Image 3: Automated processes for glass sizes of every dimension.<\/p>\n<p>[\/vc_column_text][vc_custom_heading text=&#8221;Water as a critical process parameter&#8221; font_container=&#8221;tag:h3|text_align:left&#8221; use_theme_fonts=&#8221;yes&#8221;][vc_column_text]Coating quality depends to a large extent on stable process conditions. Cleaning the glass before coating plays a central role: only completely clean surfaces allow standardised layer deposition. Even minor contamination or fluctuations in water quality can impair the coating\u2019s adhesion and optical properties. Water is therefore no longer merely an auxiliary material, but a decisive process parameter.<span class=\"Apple-converted-space\">\u00a0<\/span><\/p>\n<p>The interaction between water treatment and washing technology is crucial. Only precise coordination of the two systems ensures that the required water quality is consistently achieved throughout the entire process. While water treatment defines and maintains the necessary quality parameters\u2014such as conductivity, freedom from particles and organic load\u2014the washing technology ensures their reliable implementation at the component surface. Mechanical, chemical and hydraulic effects work together and must be precisely coordinated. In practice, reproducible results, low reject rates and stable coating processes over the long term can only be ensured when both components are viewed and operated as an integrated overall system.[\/vc_column_text]<div class=\"cq-testimonialcarousel\" data-avatarwidth=\"100\" data-avatarheight=\"100\" data-italic=\"off\" data-font=\"\" data-tnumber=\"1\" data-twidth=\"100%\" data-tmargin=\"\" data-tpadding=\"\" data-arrowmarginleft=\"\" data-namemargin=\"\" data-avatarmarginleft=\"\" data-tbackgroundcolor=\"#97be0d\" data-ttextcolor=\"#ffffff\" data-autoplay=\"off\" data-autoplayspeed=\"3000\" data-noloop=\"off\" data-fontsize=\"1.2em\" data-namesize=\"\" data-subtitlesize=\"\" data-notooltip=\"off\"><div class=\"testimonial-wrap\"><div class=\"testimonial\" data-color=\"\" data-background=\"\"><strong><em>\u201e<\/em><\/strong><b><i>Stability in the washing process is crucial. Uniform coatings can only be produced economically with consistently high water quality.<\/i><\/b><strong><em>\u201c<\/em><\/strong><\/div><div class=\"arrow-down\"><\/div><div class=\"headshot\"><img decoding=\"async\" src=\"https:\/\/www.envirofalk.com\/wp-content\/uploads\/2026\/08\/Guido-Sistermann-Sprechender-Kopf-100x100.png\" alt=\"\" width=\"100\" \/><\/div><div class=\"testimonial-info\"><h4>Dipl.-Ing. Guido Sistermann<\/h4><p>Head of Engineering, SaintGobain Glass Germany<\/p><\/div><\/div><\/div>[\/vc_column][vc_column css_animation=&#8221;fadeInUp&#8221; width=&#8221;1\/3&#8243; css=&#8221;.vc_custom_1738572506887{padding-top: 40px !important;padding-right: 20px !important;padding-bottom: 40px !important;padding-left: 20px !important;}&#8221; el_class=&#8221;has-bg&#8221;][vc_single_image onclick=&#8221;custom_link&#8221; image=&#8221;0,0,0,0&#8243; img_size=&#8221;full&#8221; alignment=&#8221;center&#8221; css=&#8221;.vc_custom_1787648369804{margin-top: -30px !important;margin-bottom: 0px !important;padding-top: 0px !important;padding-bottom: 10px !important;}&#8221; link=&#8221;url:https%3A%2F%2Fwww.questalpha.com|target:_blank&#8221; img_link_target=&#8221;_blank&#8221;][vc_column_text css=&#8221;.vc_custom_1787735650872{padding-right: 10px !important;padding-left: 10px !important;}&#8221; el_class=&#8221;arrows-list&#8221;]<span data-teams=\"true\"><a href=\"https:\/\/www.saint-gobain.com\/en\" target=\"_blank\" rel=\"noopener noreferrer nofollow\"><strong>Saint-Gobain Glass Deutschland<\/strong><\/a> is part of the international Saint-Gobain Group and ranks among the leading providers of <strong>high-quality glass solutions for the construction and architecture sectors<\/strong>. The company develops, manufactures and markets innovative glazing systems for windows, fa\u00e7ades and interior construction. Its focus is on energy-efficient, sustainable, high-performance glass that combines comfort, safety and design. With modern production sites, extensive research expertise and a strong commitment to sustainable construction, Saint-Gobain Glass supports customers worldwide in delivering demanding building projects. In doing so, the company pursues the Group vision <strong>\u201eMaking the World a Better Home\u201c<\/strong>.<\/span>[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column width=&#8221;2\/3&#8243;][vc_custom_heading text=&#8221;When established systems reach their limits&#8221; font_container=&#8221;tag:h3|text_align:left&#8221; use_theme_fonts=&#8221;yes&#8221;][vc_column_text]The existing water-treatment system at the Cologne-Porz site had operated reliably for many years and was continuously developed by EnviroFALK. As requirements increased, however, so did the need for greater transparency and targeted process control.<\/p>\n<p>The objective was a modern solution in line with <b>Industrie\u202f4.0<\/b>, offering end-to-end process and data transparency as well as the ability to monitor and control every system stage in real time.<\/p>\n<p>Together with EnviroFALK, a purified-water recirculation system was developed specifically to meet these requirements. Today, all relevant process stages are centrally monitored and visualised in real time.<span class=\"Apple-converted-space\">\u00a0<\/span>[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/3&#8243;][\/vc_column][\/vc_row][vc_row][vc_column width=&#8221;2\/3&#8243;][vc_custom_heading text=&#8221;Multi-stage water treatment in a closed loop&#8221; use_theme_fonts=&#8221;yes&#8221;][\/vc_column][vc_column width=&#8221;1\/3&#8243;][\/vc_column][\/vc_row][vc_row][vc_column width=&#8221;1\/2&#8243;][vc_custom_heading text=&#8221;Reliable purified-water production&#8221; font_container=&#8221;tag:h3|text_align:left&#8221; use_theme_fonts=&#8221;yes&#8221;][vc_column_text]Purified water is produced through a clearly structured, multi-stage process within a closed-loop system. The aim is to deliver consistently high, reproducible water quality that meets the requirements of the coating processes.[\/vc_column_text][vc_custom_heading text=&#8221;Water-treatment processes&#8221; font_container=&#8221;tag:h3|text_align:left&#8221; use_theme_fonts=&#8221;yes&#8221;][vc_column_text]In this case, the first step is to filter the well water in order to reliably remove particulate contaminants. Further treatment then takes place across several coordinated process stages: softening reduces hardness-forming substances and protects downstream system components, while reverse osmosis (RO) performs the main desalination step. Subsequent electrodeionisation (EDI) provides polishing demineralisation, resulting in very low conductivity levels. Downstream storage in sloping tanks with UV disinfection ensures the microbiological stability of the purified water.[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/2&#8243;][vc_single_image image=&#8221;33007&#8243; img_size=&#8221;full&#8221;][vc_column_text css=&#8221;.vc_custom_1787639389480{margin-top: -30px !important;}&#8221;]<\/p>\n<p style=\"text-align: left; font-size: 10px;\">Purified-water treatment for consistently high water quality in glass coating.<\/p>\n<p>[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column width=&#8221;1\/2&#8243;][vc_single_image image=&#8221;33014&#8243; img_size=&#8221;full&#8221;][vc_column_text css=&#8221;.vc_custom_1787639558175{margin-top: -30px !important;}&#8221;]<\/p>\n<p style=\"text-align: left; font-size: 10px;\">Purified-water recirculation system for maximum process stability in glass coating.<\/p>\n<p>[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/2&#8243;][vc_custom_heading text=&#8221;Use of purified water in glass cleaning&#8221; font_container=&#8221;tag:h3|text_align:left&#8221; use_theme_fonts=&#8221;yes&#8221;][vc_column_text]The purified water produced in this way is used specifically in the production process and supplied to the washing machine. During cleaning, it ensures thorough removal of contaminants from the glass surfaces, creating the essential prerequisite for a uniform, high-quality coating. At this stage of the process, water quality has a direct impact on product quality and the reject rate.[\/vc_column_text][vc_custom_heading text=&#8221;Reprocessing and recirculation&#8221; font_container=&#8221;tag:h3|text_align:left&#8221; use_theme_fonts=&#8221;yes&#8221;][vc_column_text]A key feature of the system concept is the consistent recirculation of process water. The wash water produced is not discarded, but undergoes multi-stage reprocessing before being returned to the process. Ultrafiltration first reliably removes particles, colloids and microbiological constituents. A two-stage reverse-osmosis process then reduces dissolved substances. The pretreated water subsequently passes through the central stages of the water-treatment system again before being returned to the washing process. <span class=\"Apple-converted-space\">\u00a0<\/span>[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column width=&#8221;1\/2&#8243;][vc_custom_heading text=&#8221;Closed-loop purified-water circulation for maximum efficiency&#8221; font_container=&#8221;tag:h3|text_align:left&#8221; use_theme_fonts=&#8221;yes&#8221;][vc_column_text]The targeted combination and coordination of the individual process steps creates a closed system with transparent controls. It not only guarantees stable, reproducible water quality, but also enables the transition from a linear consumption model to resource-efficient recirculation. In addition to process reliability, the concept therefore makes a significant contribution to reducing fresh-water demand and wastewater volumes, while meeting growing requirements for sustainability and cost-effectiveness in industrial production.[\/vc_column_text][vc_custom_heading text=&#8221;Transparency down to sensor level&#8221; font_container=&#8221;tag:h3|text_align:left&#8221; use_theme_fonts=&#8221;yes&#8221;][vc_column_text]Particular emphasis is also placed on measurement and control technology with IOLink. It enables continuous communication down to sensor level and provides advanced diagnostic and process data in real time. The objective was to create maximum transparency while ensuring stable system operation. All relevant process data is available in real time via a central dashboard. Deviations can be detected early and corrected in a targeted manner.<span class=\"Apple-converted-space\">\u00a0<\/span>[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/2&#8243;][vc_single_image image=&#8221;33035&#8243; img_size=&#8221;full&#8221;][vc_column_text css=&#8221;.vc_custom_1787640289464{margin-top: -30px !important;}&#8221;]<\/p>\n<p style=\"text-align: left; font-size: 10px;\">Magnetron coating lines produce functional metal layers; the quality of the water used in the upstream washing process is crucial.<\/p>\n<p>[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column width=&#8221;2\/3&#8243;]<div class=\"cq-testimonialcarousel\" data-avatarwidth=\"100\" data-avatarheight=\"100\" data-italic=\"off\" data-font=\"\" data-tnumber=\"1\" data-twidth=\"100%\" data-tmargin=\"\" data-tpadding=\"\" data-arrowmarginleft=\"\" data-namemargin=\"\" data-avatarmarginleft=\"\" data-tbackgroundcolor=\"#97be0d\" data-ttextcolor=\"#ffffff\" data-autoplay=\"off\" data-autoplayspeed=\"3000\" data-noloop=\"off\" data-fontsize=\"1.2em\" data-namesize=\"\" data-subtitlesize=\"\" data-notooltip=\"off\"><div class=\"testimonial-wrap\"><div class=\"testimonial\" data-color=\"\" data-background=\"\"><b><i>\u201cWe achieve conductivity levels close to the technical limit, providing consistently high water quality for 24\/7 operation.\u201d<\/i><\/b><\/div><div class=\"arrow-down\"><\/div><div class=\"headshot\"><img decoding=\"async\" src=\"https:\/\/www.envirofalk.com\/wp-content\/uploads\/2026\/08\/David-Hannappel-Sprechender-Kopf-100x100.png\" alt=\"\" width=\"100\" \/><\/div><div class=\"testimonial-info\"><h4>David Hannappel<\/h4><p>Application Consultant, EnviroFALK <\/p><\/div><\/div><\/div>[vc_custom_heading text=&#8221;Stable processes, increased efficiency&#8221; font_container=&#8221;tag:h3|text_align:left&#8221; use_theme_fonts=&#8221;yes&#8221;][vc_column_text]Not only the technical solution, but also implementation while production continued presented the project with particular challenges. Installation and commissioning had to take place within a tight time frame, placing correspondingly high demands on planning and coordination.<\/p>\n<p>Through close cooperation between the EnviroFALK and Saint-Gobain Glass Germany project teams, all interfaces were defined at an early stage and precisely coordinated. This aligned approach laid the foundation for a smooth process and the successful commissioning of the purified-water recirculation system shortly before the end of the year.[\/vc_column_text]<div class=\"cq-testimonialcarousel\" data-avatarwidth=\"100\" data-avatarheight=\"100\" data-italic=\"off\" data-font=\"\" data-tnumber=\"1\" data-twidth=\"100%\" data-tmargin=\"\" data-tpadding=\"\" data-arrowmarginleft=\"\" data-namemargin=\"\" data-avatarmarginleft=\"\" data-tbackgroundcolor=\"#97be0d\" data-ttextcolor=\"#ffffff\" data-autoplay=\"off\" data-autoplayspeed=\"3000\" data-noloop=\"off\" data-fontsize=\"1.2em\" data-namesize=\"\" data-subtitlesize=\"\" data-notooltip=\"off\"><div class=\"testimonial-wrap\"><div class=\"testimonial\" data-color=\"\" data-background=\"\"><b><i>\u201cToday, we can see at a glance what is happening in the water-treatment system. This gives us the transparency we need to control and develop our processes in a targeted manner.\u201d<\/i><\/b><\/div><div class=\"arrow-down\"><\/div><div class=\"headshot\"><img decoding=\"async\" src=\"https:\/\/www.envirofalk.com\/wp-content\/uploads\/2026\/08\/Marius-Bongartz-Sprechender-Kopf-100x100.png\" alt=\"\" width=\"100\" \/><\/div><div class=\"testimonial-info\"><h4>Marius Bongartz<\/h4><p>Process Engineer, SaintGobain Glass Germany <\/p><\/div><\/div><\/div>[vc_custom_heading text=&#8221;Project implementation under tight constraints&#8221; font_container=&#8221;tag:h3|text_align:left&#8221; use_theme_fonts=&#8221;yes&#8221;][vc_column_text]The combination of recirculation, precise control technology and continuous monitoring enables stable water quality during ongoing operation. This has a direct impact on process reliability and coating quality. At the same time, resources are used more efficiently: water consumption falls, process deviations are reduced and system operation can be optimised in a targeted manner.[\/vc_column_text][vc_single_image image=&#8221;33326&#8243; img_size=&#8221;full&#8221;][vc_column_text css=&#8221;.vc_custom_1787639828480{margin-top: -30px !important;}&#8221;]<\/p>\n<p style=\"text-align: left; font-size: 10px;\">Automated processes for glass sizes of every dimension.<\/p>\n<p>[\/vc_column_text]<div class=\"cq-testimonialcarousel\" data-avatarwidth=\"100\" data-avatarheight=\"100\" data-italic=\"off\" data-font=\"\" data-tnumber=\"1\" data-twidth=\"100%\" data-tmargin=\"\" data-tpadding=\"\" data-arrowmarginleft=\"\" data-namemargin=\"\" data-avatarmarginleft=\"\" data-tbackgroundcolor=\"#97be0d\" data-ttextcolor=\"#ffffff\" data-autoplay=\"off\" data-autoplayspeed=\"3000\" data-noloop=\"off\" data-fontsize=\"1.2em\" data-namesize=\"\" data-subtitlesize=\"\" data-notooltip=\"off\"><div class=\"testimonial-wrap\"><div class=\"testimonial\" data-color=\"\" data-background=\"\"><b><i>\u201cWe precisely coordinated all handover points. This enabled us to commission the purified-water recirculation system successfully within the tight time frame before Christmas.\u201d<\/i><\/b><\/div><div class=\"arrow-down\"><\/div><div class=\"headshot\"><img decoding=\"async\" src=\"https:\/\/www.envirofalk.com\/wp-content\/uploads\/2026\/08\/Stefan-Zerfas-Sprechender-Kopf-100x100.png\" alt=\"\" width=\"100\" \/><\/div><div class=\"testimonial-info\"><h4>Stefan Zerfas<\/h4><p>Project Manager, EnviroFALK<\/p><\/div><\/div><\/div>[vc_custom_heading text=&#8221;Outlook: water treatment as a strategic factor&#8221; font_container=&#8221;tag:h3|text_align:left&#8221; use_theme_fonts=&#8221;yes&#8221;][vc_column_text]As requirements for energy efficiency, product quality and sustainability increase, water treatment is becoming an increasingly important focus in industrial processes. In sensitive applications such as glass coating in particular, it is becoming an integral part of the production strategy.<span class=\"Apple-converted-space\">\u00a0<\/span><\/p>\n<p>The example at the Cologne-Porz site shows how modern purified-water recirculation systems help create transparency, conserve resources and ensure stable process conditions at the same time.[\/vc_column_text][vc_custom_heading text=&#8221;Conclusion&#8221; font_container=&#8221;tag:h3|text_align:left&#8221; use_theme_fonts=&#8221;yes&#8221;][vc_column_text]In glass coating, water is far more than an auxiliary medium. It is a decisive process parameter. Consistently high water quality is the prerequisite for stable processes, reproducible results and economical production. Coating quality therefore begins with water treatment.[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/3&#8243;][\/vc_column][\/vc_row][\/vc_section][vc_section css=&#8221;.vc_custom_1721217061548{margin-top: -50px !important;padding-bottom: -80px !important;}&#8221; content_placement=&#8221;middle&#8221; el_class=&#8221;testimonial-customerbox&#8221;][vc_row][vc_column css_animation=&#8221;none&#8221;][vc_tta_accordion section_title_tag=&#8221;h5&#8243; c_icon=&#8221;chevron&#8221; c_position=&#8221;right&#8221; collapsible_all=&#8221;true&#8221; active_section=&#8221;&#8221; no_fill=&#8221;true&#8221; title=&#8221;FAQ&#8221;][vc_tta_section title=&#8221;Why is water quality so important in glass coating?&#8221; tab_id=&#8221;1769611328372-a7547d1a-2dcd&#8221;][vc_column_text]<\/p>\n<p class=\"p1\">Consistently high water quality is crucial to the quality of the glass coating. Even minor contamination or fluctuations can impair the coating\u2019s adhesion and optical properties. High-quality purified water is therefore an important process parameter, particularly when cleaning the glass before coating.<\/p>\n<p>[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;How does purified-water treatment work in the glass industry?&#8221; tab_id=&#8221;1769611328393-c746ec4d-a64c&#8221;][vc_column_text]<\/p>\n<p class=\"p1\">At Saint-Gobain Glass Germany, purified-water treatment takes place in several coordinated process stages. These include filtration, softening, reverse osmosis (RO) and electrodeionisation (EDI). Subsequent storage with UV disinfection supports the microbiological stability of the purified water.<\/p>\n<p>[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;What role does purified water play in glass cleaning?&#8221; tab_id=&#8221;1769611328413-20173970-0ccf&#8221;][vc_column_text]<\/p>\n<p class=\"p1\">The treated purified water is supplied to the washing machine and used to clean the glass surfaces thoroughly. Clean surfaces are an essential prerequisite for a uniform, high-quality coating. Water quality therefore directly influences product quality and the reject rate.<\/p>\n<p>[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;How can process water be reused in the glass industry?&#8221; tab_id=&#8221;1769611328432-2c531d6b-74ed&#8221;][vc_column_text]<\/p>\n<p class=\"p1\">Water generated during the washing process can be treated and then returned to the process. At the Saint-Gobain plant, ultrafiltration and two-stage reverse osmosis are among the methods used for this purpose. The water then passes through the central water-treatment stages again.<\/p>\n<p>[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;What are the benefits of a purified-water recirculation system?&#8221; tab_id=&#8221;1769611328452-fc1f7340-f88a&#8221;][vc_column_text]<\/p>\n<p class=\"p1\">Closed-loop purified-water circulation enables stable, reproducible water quality while reducing both fresh-water demand and the volume of wastewater generated. This combines process reliability, resource efficiency and cost-effectiveness.<\/p>\n<p>[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;How is water quality monitored during operation?&#8221; tab_id=&#8221;1769611328471-6b836881-2457&#8243;][vc_column_text]<\/p>\n<p class=\"p1\">In Saint-Gobain\u2019s purified-water recirculation system, relevant process data is recorded centrally and made available in real time. Measurement and control technology with IO-Link enables data to be evaluated down to sensor level. This allows deviations to be detected early and corrected in a targeted manner.<\/p>\n<p>[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;Which water-treatment processes are used at Saint-Gobain?&#8221; tab_id=&#8221;1769678424166-e091110b-9960&#8243;][vc_column_text]<\/p>\n<p class=\"p1\">The system combines various industrial water-treatment processes. These include filtration, softening, reverse osmosis (RO), electrodeionisation (EDI), UV disinfection and ultrafiltration. The individual processes are coordinated and form part of a closed purified-water loop.<\/p>\n<p>[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;How does modern water treatment contribute to more sustainable glass production?&#8221; tab_id=&#8221;1769678451733-c825be01-291f&#8221;][vc_column_text]<\/p>\n<p class=\"p1\">Reprocessing and recirculating process water can reduce both fresh-water demand and wastewater volumes. At the same time, consistently high water quality ensures stable production conditions, supporting resource-efficient and economical glass production.<\/p>\n<p>[\/vc_column_text][\/vc_tta_section][\/vc_tta_accordion][\/vc_column][\/vc_row][vc_row full_width=&#8221;stretch_row_content_no_spaces&#8221; el_id=&#8221;aktuelles&#8221;][vc_column el_id=&#8221;aktuelles&#8221;]<div class=\"posts-wrapper wpb_content_element\"><h2 class=\"entry-title text-center\">You may also be interested in<\/h2><div id=\"all-references\" class=\"flexbox has-slider\" data-posts=\"3\" data-cat-id=\"122\"><div id=\"post-17811\" class=\"referenz post-17811 type-referenz status-publish has-post-thumbnail hentry referenz_kategorie-industry-trade referenz_kategorie-glass-and-solar-industry\"><a href=\"https:\/\/www.envirofalk.com\/en\/referenzen\/tardis-grinding-water-treatment-glass-industry\/\"><figure class=\"img-box \" style=\"background-image: url(https:\/\/www.envirofalk.com\/wp-content\/uploads\/2024\/09\/Doppelparallel-Schleifmaschine-1.jpg)\"><\/figure><\/a><div class=\"text-box\"><h3 class=\"entry-title\"><a href=\"https:\/\/www.envirofalk.com\/en\/referenzen\/tardis-grinding-water-treatment-glass-industry\/\">Glass processor TARDIS scores with optimum grinding water quality and reduced operating costs<\/a><\/h3><p>The specially developed grinding water treatment system combines many years of expertise in system design with in-depth knowledge of selected dosing agents and patented EnviModex filter bags for sludge dewatering. <a href=\"https:\/\/www.envirofalk.com\/en\/referenzen\/tardis-grinding-water-treatment-glass-industry\/\">mehr lesen<\/a><\/p><\/div><\/div><div id=\"post-9639\" class=\"referenz post-9639 type-referenz status-publish has-post-thumbnail hentry referenz_kategorie-industry-trade referenz_kategorie-glass-and-solar-industry\"><a href=\"https:\/\/www.envirofalk.com\/en\/referenzen\/saint-gobain-glass-balustrade-on-the-skywalk-in-the-grand-canyon-made-of-laminated-safety-glass\/\"><figure class=\"img-box \" style=\"background-image: url(https:\/\/www.envirofalk.com\/wp-content\/uploads\/2023\/08\/Referenz_Glasindustrie_Skywalk.jpg)\"><\/figure><\/a><div class=\"text-box\"><h3 class=\"entry-title\"><a href=\"https:\/\/www.envirofalk.com\/en\/referenzen\/saint-gobain-glass-balustrade-on-the-skywalk-in-the-grand-canyon-made-of-laminated-safety-glass\/\">SAINT-GOBAIN: Glass balustrade on the Skywalk in the Grand Canyon made of laminated safety glass<\/a><\/h3><p>\r\n\r\n\r\nSAINT-GOBAIN produces laminated safety glass for the glass balustrade on the Skywalk in the Grand Canyon. 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Bei Saint-Gobain Glass Deutschland sorgt eine moderne Reinwasser-Kreislaufanlage von EnviroFALK f\u00fcr stabile Prozesse, konstant hohe Qualit\u00e4t und einen ressourceneffizienten Betrieb.<\/p>\n","protected":false},"featured_media":33001,"template":"","class_list":["post-33665","referenz","type-referenz","status-publish","has-post-thumbnail","hentry","referenz_kategorie-glass-and-solar-industry","referenz_kategorie-industry-trade"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.3 (Yoast SEO v28.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>When water determines coating quality &#8211; EnviroFALK<\/title>\n<meta name=\"description\" content=\"Wie Saint-Gobain mit moderner Reinwasseraufbereitung von EnviroFALK die Prozesssicherheit in der Glasbeschichtung erh\u00f6ht und Ressourcen schont.\" \/>\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.envirofalk.com\/en\/referenzen\/when-water-determines-coating-quality\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"When water determines coating quality\" \/>\n<meta property=\"og:description\" content=\"Wie Saint-Gobain mit moderner Reinwasseraufbereitung von EnviroFALK die Prozesssicherheit in der Glasbeschichtung erh\u00f6ht und Ressourcen schont.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.envirofalk.com\/en\/referenzen\/when-water-determines-coating-quality\/\" \/>\n<meta property=\"og:site_name\" content=\"EnviroFALK\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/envirofalk\" \/>\n<meta property=\"article:modified_time\" content=\"2026-08-27T08:22:19+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.envirofalk.com\/wp-content\/uploads\/2026\/08\/Saint-Gobain-Header.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1870\" \/>\n\t<meta property=\"og:image:height\" content=\"410\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"12 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.envirofalk.com\\\/en\\\/referenzen\\\/when-water-determines-coating-quality\\\/\",\"url\":\"https:\\\/\\\/www.envirofalk.com\\\/en\\\/referenzen\\\/when-water-determines-coating-quality\\\/\",\"name\":\"When water determines coating quality &#8211; 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