Etched glass is created by cutting a design stencil that is made of an abrasive resistant material, such as vinyl or rubber. Acid etched glass is produced by acid etching one side of float glass. Sodium, calcium, and aluminium atoms at the glass surface were effectively reduced by chemical etching with hydrochloric acid. The acid used in the process of etching is hexaflurosilicic acid (H2SiF6) which is prepared by mixing silica with hydrochloric acid (HCl), calcium fluoride, concentrated sulphuric acid and quartz material. Hence, HCl is employed.