10 Protection for exterior components made of light metals By Dr. Georg Wagner, NTC Nano Tech Coatings GmbH, Tholey (Saarland) Exterior components made of light metals such as aluminum or magnesium have become an integral part of modern vehicle designs. At the same time, they are exposed to high levels of corrosion and environmental influences in real-world use. Effective surface protection is therefore crucial for durability, appearance, and complaint prevention. Roof moldings, decorative profiles, and design applications are increasingly being made from light metals today. These materials enable sophisticated designs and high-quality surfaces. At the same time, they place high demands on corrosion protection, especially in visible exterior areas. During operation, moisture, road salt, temperature changes, and mechanical stress continuously affect the components. Edges, gaps, and joints are particularly critical. This is where media can collect and accelerate corrosion processes. In addition to classic corrosion, surface fading also plays a central role. Under the influence of UV radiation, weathering, and cleaning chemicals, untreated or inadequately protected components lose their color intensity and gloss. Especially in the case of roof moldings, this quickly leads to a visually inconsistent appearance. Our sustainable protection concept is based on a thin-film baked coating on a sol-gel basis with layer thicknesses between 3 and 15 micrometers. During the baking process, the coating bonds with the light metal and figuratively clings to the substrate. This strong bond significantly reduces the risk of infiltration and increases resistance to corrosive media. Resistance of over 3000 hours has been achieved in salt spray tests. At the same time, the surface remains color-stable and retains its defined gloss level over a long period of time. Development, laboratory and series production are concentrated at our site in Germany. This integrated environment enables us to tailor coatings to specific customer requirements and efficiently transfer new projects into stable series processes. Analysis, testing, and industrial implementation are directly interlinked. Our solutions represent high-tech Made in Germany and are based on many years of experience in the automotive sector. This enables us to ensure consistent quality, reproducible processes, and reliable implementation in series production. We would be happy to advise you personally on your project. www.ntcgmbh.com Schutz für Exterieuranbau- teile aus Leichmetallen Exterieuranbauteile aus Leichtmetallen wie Aluminium oder Magnesium sind aus modernen Fahrzeugkonzepten nicht mehr wegzudenken. Gleichzeitig sind sie im realen Einsatz hohen Korrosions- und Umwelteinflüssen ausgesetzt. Ein leistungsfähiger Oberflächenschutz entscheidet daher über Haltbarkeit, Optik und Reklamationssicherheit. Dachleisten, Zierprofile oder Designapplikationen werden heute zunehmend aus Leichtmetallen gefertigt … Weiterlesen: https://t1p.de/jgvov Dr. Georg Wagner Bilder: © NTC
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