PPGI Galvanized Steel Coil is a steel coil coated with a layer of zinc. This provides a layer of corrosion protection and makes the steel easier to clean. The coating also makes the steel more attractive. PPGI Galvanized Steel Coil is available in a variety of widths, thicknesses and finishes. They are used in a variety of applications such as roofing, wall cladding, composite panels and air conditioning ducts.