Sustainability, innovation, high quality standards and customer satisfaction are key for Novelis. For this reason, and as part of its development to market maturity, Novelis subjected the anodized recycling quality Novelis AL:sust™ HRC57S® with a recycled content of more than 90%, to a series of tests in which ten different anodizing companies participated. These were selected anonymously by the VOA (Verband für Oberflächenveredelung von Aluminium e.V. [Association for the Surface Treatment of Aluminum] from the association’s members. 

In field tests, the material was processed according to the same specifications. The data obtained from these tests reveal the anodizing recycling quality Novelis AL:sust™ HRC57S® – produced and ready for further processing in the batch anodizing process – basically has good decorative anodizing properties. The subjective general assessment of the tested surfaces after the batch anodizing process to evaluate gloss, corrosion and color measurement is generally positive throughout the test series. 

As with other aluminum alloys, the use of different aluminum alloys in one project should be avoided to prevent possible color differences.