grando material is celebrating an anniversary
What does the grando solar cover have in common with CDs, optical lenses and the roof of Cologne main railway station? They are all produced from a high-quality synthetic material – polycarbonate. This material developed by Dr Hermann Schnell at Bayer AG was introduced under the brand name Makrolon in 1955. This was the year in which Marilyn Monroe made a name for herself with the film ‘The Seven Year Itch’. Keep reading →