Clear float is a transparent annealed glass, in which two sides are planes and parallel to each other. The technique for production of floated glass is quite recent in comparison to the discovery of glass. The technique was invented by Sir Alastair Pilkington in 1958 to produce a perfectly smooth glass. It can go through any type of processing i.e curving, beveling, polishing of edging, enameling, lacking, etching, tempering etc.