float glass(redirected from Pilkington process)
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float glass[′flōt ‚glas]
Flat glass with a nearly true optical surface produced by floating a continuous sheet of molten glass on a bed of molten tin until the glass cools and hardens.
Sheets of glass made by floating molten glass on a surface of molten metal, which produces a polished surface. See also: Glass
1. A glass plate, formed by pouring molten glass continuously from an oven onto a shallow bath of molten tin on which it floats, thus spreading out and producing level parallel surfaces on both sides of the glass. The surfaces of the glass make no contact with rollers or other surfaces until the molten glass has solidified.
2.See plate glass.