What it is
Float glass is made through a process of floating molten glass on a bed of molten tin. This produces flat sheet glass that is of a uniform thickness and free of ripples. Look around you and see how our modern urban environment depends on float glass. Pilkington patented the float process in the 1950s, and now it is the dominant process used to make almost all commercial window glass worldwide.
Float glass picks up a layer of tin on one side during manufacture. When ...