Hygiene requirements, particularly in hospitals, kindergartens and public buildings, are constantly growing. These antimicrobial surfaces can be used for handles and aluminium profiles. In this way, the interior surface of windows, doors, sliding windows and also facades receive long-lasting, antimicrobial protection. This is achieved using nano-free, high-purity microsilver particles. The powder coating employed comes in a wide range of colours, thus providing great design freedom.