Noun
English Wikipedia has an article on:float glassWikipedia
float glass (usually uncountable, plural float glasses)
Glass in the form of flat sheets, made by floating molten glass on the surface of molten metal; currently the main method of producing window glass.
The World of Glass museum in October 2006 Alastair Pilkington invented the float glass method of manufacture in 1957 at St Helens, announcing it in January 1959. Source: Internet
Modern glass intended for windows is produced as float glass and is very uniform in thickness. Source: Internet
Modern reproductions of these articles remain popular in North America. citation Window glass is most often made by floating molten glass on molten tin ( float glass ), resulting in a flat and flawless surface. Source: Internet
This kind of glass mirror is produced by coating a silver, copper film and two or more layers of waterproof paint on the back surface of float glass, which perfectly resists acid and moisture. Source: Internet